US3403696A - Silent check-valve - Google Patents
Silent check-valve Download PDFInfo
- Publication number
- US3403696A US3403696A US588180A US58818066A US3403696A US 3403696 A US3403696 A US 3403696A US 588180 A US588180 A US 588180A US 58818066 A US58818066 A US 58818066A US 3403696 A US3403696 A US 3403696A
- Authority
- US
- United States
- Prior art keywords
- disc
- valve
- bore
- threaded
- check
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
- F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7859—Single head, plural ports in parallel
- Y10T137/786—Concentric ports
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7859—Single head, plural ports in parallel
- Y10T137/7861—Annular head
- Y10T137/7862—Central post on seat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7879—Resilient material valve
- Y10T137/7888—With valve member flexing about securement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7879—Resilient material valve
- Y10T137/7888—With valve member flexing about securement
- Y10T137/789—Central mount
Definitions
- This invention relates to check-valves responsive to fluid ow, and particularly to a ipper type valve.
- the primary object of the invention is to provide a silent check-valve having no springs or fulcrum elements subject to vibration or chattering in their operation.
- Another object of the invention is to provide a new and improved check-valve device that is sensitive to the extent of quickly assuming a maximum full flow position under relatively light pressures but which will close olf virtually instantaneously as promptly as flow ceases and back pressure tends to develop.
- a further object is to provide a check-valve of the type stated whose operation is not affected by its angular inclination, so that it is equally effective in vertical, horizontal, or intermediate positions.
- Still another object is to provide a silent check-valve whose co-operating head and seat elements are made of non-corrosive, self cleaning, non-vibratile plastic materials, such as natural rubber and nylon.
- FIGURE 1 is a side elevation of the silent check-valve that is the subject of the invention.
- FIGURE 2 is a top plan view thereof
- FIGURE 3 is a bottom plan view of the same
- FIGURE 4 is a vertical sectional view, taken along the line and in the direction of the arrows 4-4 of FIG- URE 1;
- FIGURE 5 is a side elevation of the valve head unit in its unmounted condition
- FIGURE 6 is a top plan view of the unmounted nylon valve seat disc
- FIGURE 7 is a horizontal sectional view of the same, taken along the line and in the direction of the arrows 7-7 of FIGURE 6;
- FIGURE 8 is a side view of the check-valve showing it mounted in a vertical pipe line
- FIGURE 9 is a side view showing the check-valve mounted in a horizontal pipe line.
- FIGURE 10 is a side elevation showing the check-valve used as a foot valve, with a terminal strainer, for well installations.
- FIGURE 1 the silent check-valve that is the subject of the invention, broadly indicated by reference numeral 10.
- the check-valve 10 is made up of three elements, namely, a hollow cylindrical body 11, a valve seat disc 15, mounted in the body 11, intermediate the ends thereof, and a flipper valve head 20 mounted on the valve disc 15, as is seen most clearly in FIGURE 4.
- the hollow body 11 is open at both ends, with a threaded bore 12 therethrough, adapted to receive the threaded ends of standard pipe 26, as seen in FIGURES 8, 9 and 10.
- the disc unit 15 is molded from nylon or other plastic material having similar characteristics of extreme toughness, low water absorption and high tensile strength.
- the disc 15 As seen most clearly in FIGURES 6 and 7, the disc 15 'ice has flat and'parallel faces with its peripheral edge 16 threaded to rotatably interit the threaded body bore 12.
- the disc 15 has a centered bore 17 adapted to snugly receive the stern 23 of the valve head 20, as seen in FIG- URE 4.
- the disc 15 also has a plurality of lluid passages 18 therethrough, surrounding the central bore 17.
- the value head unit 20 as seen in its unmounted condition in FIGURE 5, is preferably molded as one piece from natural rubber, or similar inherently resilient material.
- Reference numeral 21 indicates an inherently resilient valve cap, tapered to a circumferential feathered edge 22.
- the cap 21 has a centered, dependent, mounting stem 23 with a frusto-conical locking button 24 at the lower end thereof, terminating at its apex in an elongated tail 25.
- valve seat disc 15 is threaded into the body bore 12 until it is centered between the open ends thereof, as seen in FIGURE 4.
- the wall of the body is then subjected to localized compression, at the threaded edge of the nylon disc 15, to form a compression groove 13, at which point the metal threads of the body 11 are displaced inwardly against the threaded edge 16 of the nylon disc to effect a plastic flow that both locks the disc 15 in place and creates a fluid-tight seal between the disc and body.
- No lock nuts, rivets, or separate sealing gaskets are required.
- valve head 20 is then mounted on the disc 15 by positioning the tapered frusto-conical lock button 24 at the disc bore 17, with the tail 25 extended through and beyond the bore 17.
- valve head is then easily mounted in place by rst wetting the surface of the button 24, to reduce frictional drag, and then pulling on the tail until the valve stem 23 is nested in the bore 17 with the valve cap 21 and the lock button 24 seated against opposite faces of the disc 15, as again seen in FIGURE 4.
- the cap 21 of the so mounted valve head 20 normally seats fiat against the upper face 28 of the disc 15, covering all the fluid passages 18.
- Reference numeral 30 indicates arrows embossed on the outer surface of the body 11 to indicate the intended f direction of fluid flow through the check-valve 10.
- valve cap 21 occupies the solid line position of FIGURE 4. It can be assumed that fluid flows in the direction of the arrows 30.
- valve cap causes it to ilip away from the passages 18, in response to the lluid pressure, thereby admitting a free flow of uid through the passages 18 in the direction of the arrows 30.
- valve head cap 21 As promptly as flow ceases, the inherent resiliency of the valve head cap 21 will exercise itself and return the cap 21a to its initial full line position wherein it results on the disc seat 28 and covers all the passages 18 therein. Since the valve head element is of very light weight rubber, or rubber-like synthetic or plastic material, the exures described can be repeated many thousands of times before there is any material wear or decrease in effectiveness, at which time the valve head unit can be easily replaced, without the use of any tools.
- any back-pressure in the line controlled by the check-valve such as occurs when it is used as a foot valve in a well installation, as shown in FIGURE 10, will act to press the cap 21 securely against its seat 28 and ⁇ sealof the passages 18 through the disc 15, and prevent back-ow of any fluid in the line.
- a silent check-valve adapted to control fluid ow in a pipe line comprising in combination:
- the disc having parallel lower and upper faces dening a valve seat having a central valve stern bore surrounded by a plurality of spaced fluid passages; (c) the body wall being circumferentally displaced Ainwardly, atY the disc, to effect plastic flow of the threaded disc edge, and lock the disc against rotation and create a fluid-tight seal between the disc and the body bore wall; and,
- a unitary valve-head fabricated from inherently resilient, non-vibratile, plastic material, having a circular cap tapered to a circumferential feathered edge, and a dependent mounting stem having a frustoconical retaining button at the lower end thereof terminating, at its apex, in an elongated tail;
- valve-head being mounted on the disc, with its stem nested in the disc center bore and its cap and button seated against the upper and lower faces, respectively, of the disc;
- valve-head cap being free to flip, responsive to uid pressure in the pipe line, between a first position, wherein it is seated against the upper disc face, whereat it covers all the fluid passages to block fluid How, and a second position, wherein its periphery is flexed away from the upper disc face, clear of the passageways, to allow free flow of fluid therethrough.
- a silent check-valve as in claim 1, wherein, the disc is fabricated from nylon and the valve-head is fabricated of natural rubber.
Description
Oce. 1, 196s G. PYNCHQN 3,403,696
S ILENT CHECK- VALVE Filed 001,. 20, 1966 INVENTOR.
//i//MWJIQ ATTORNEY 650265'- Pme/40N United States Patent O 3,403,696 SILENT CHECK-VALVE George Pynchon, 54 Northfield Ave., Northfield, Ohio 44067 Filed Oct. 20, 1966, Ser. No. 588,180 2 Claims. (Cl. 137-516.13)
This invention relates to check-valves responsive to fluid ow, and particularly to a ipper type valve.
The primary object of the invention is to provide a silent check-valve having no springs or fulcrum elements subject to vibration or chattering in their operation.
Another object of the invention is to provide a new and improved check-valve device that is sensitive to the extent of quickly assuming a maximum full flow position under relatively light pressures but which will close olf virtually instantaneously as promptly as flow ceases and back pressure tends to develop.
A further object is to provide a check-valve of the type stated whose operation is not affected by its angular inclination, so that it is equally effective in vertical, horizontal, or intermediate positions.
Still another object is to provide a silent check-valve whose co-operating head and seat elements are made of non-corrosive, self cleaning, non-vibratile plastic materials, such as natural rubber and nylon.
Other objects are to provide a silent check-valve that is reliable in operation, of long life, and relatively inexpensive to manufacture.
These, and other objects of the invention will become apparent from a reading of the following specification and claims, together with the accompanying drawing, wherein like parts are referred to and indicated by like reference numerals, and wherein:
FIGURE 1 is a side elevation of the silent check-valve that is the subject of the invention;
FIGURE 2 is a top plan view thereof;
FIGURE 3 is a bottom plan view of the same;
FIGURE 4 is a vertical sectional view, taken along the line and in the direction of the arrows 4-4 of FIG- URE 1;
FIGURE 5 is a side elevation of the valve head unit in its unmounted condition;
FIGURE 6 is a top plan view of the unmounted nylon valve seat disc;
FIGURE 7 is a horizontal sectional view of the same, taken along the line and in the direction of the arrows 7-7 of FIGURE 6;
FIGURE 8 is a side view of the check-valve showing it mounted in a vertical pipe line;
FIGURE 9 is a side view showing the check-valve mounted in a horizontal pipe line; and,
FIGURE 10 is a side elevation showing the check-valve used as a foot valve, with a terminal strainer, for well installations.
Referring more particularly to the drawing, there is seen in FIGURE 1 the silent check-valve that is the subject of the invention, broadly indicated by reference numeral 10.
The check-valve 10 is made up of three elements, namely, a hollow cylindrical body 11, a valve seat disc 15, mounted in the body 11, intermediate the ends thereof, and a flipper valve head 20 mounted on the valve disc 15, as is seen most clearly in FIGURE 4.
The hollow body 11 is open at both ends, with a threaded bore 12 therethrough, adapted to receive the threaded ends of standard pipe 26, as seen in FIGURES 8, 9 and 10.
The disc unit 15 is molded from nylon or other plastic material having similar characteristics of extreme toughness, low water absorption and high tensile strength.
As seen most clearly in FIGURES 6 and 7, the disc 15 'ice has flat and'parallel faces with its peripheral edge 16 threaded to rotatably interit the threaded body bore 12. The disc 15 has a centered bore 17 adapted to snugly receive the stern 23 of the valve head 20, as seen in FIG- URE 4. The disc 15 also has a plurality of lluid passages 18 therethrough, surrounding the central bore 17.
The value head unit 20, as seen in its unmounted condition in FIGURE 5, is preferably molded as one piece from natural rubber, or similar inherently resilient material.
In assembling the check-valve 10, the valve seat disc 15 is threaded into the body bore 12 until it is centered between the open ends thereof, as seen in FIGURE 4. The wall of the body is then subjected to localized compression, at the threaded edge of the nylon disc 15, to form a compression groove 13, at which point the metal threads of the body 11 are displaced inwardly against the threaded edge 16 of the nylon disc to effect a plastic flow that both locks the disc 15 in place and creates a fluid-tight seal between the disc and body. No lock nuts, rivets, or separate sealing gaskets are required.
The valve head 20 is then mounted on the disc 15 by positioning the tapered frusto-conical lock button 24 at the disc bore 17, with the tail 25 extended through and beyond the bore 17.
The valve head is then easily mounted in place by rst wetting the surface of the button 24, to reduce frictional drag, and then pulling on the tail until the valve stem 23 is nested in the bore 17 with the valve cap 21 and the lock button 24 seated against opposite faces of the disc 15, as again seen in FIGURE 4.
The cap 21 of the so mounted valve head 20 normally seats fiat against the upper face 28 of the disc 15, covering all the fluid passages 18.
Normally the valve cap 21 occupies the solid line position of FIGURE 4. It can be assumed that fluid flows in the direction of the arrows 30.
As this fluid, under pressure, ows through passages 1-8 and impinges against the underside of the valve cap 21, pressure will tend to distort it. The distortion results in displacement of the cap 21 from the solid line position of FIGURE 4 to the broken line position 21a of FIG- -URE 4.
The inherent resiliency of the material forming the valve cap causes it to ilip away from the passages 18, in response to the lluid pressure, thereby admitting a free flow of uid through the passages 18 in the direction of the arrows 30.
As promptly as flow ceases, the inherent resiliency of the valve head cap 21 will exercise itself and return the cap 21a to its initial full line position wherein it results on the disc seat 28 and covers all the passages 18 therein. Since the valve head element is of very light weight rubber, or rubber-like synthetic or plastic material, the exures described can be repeated many thousands of times before there is any material wear or decrease in effectiveness, at which time the valve head unit can be easily replaced, without the use of any tools.
The described movement of the valve head produces no sound since all the materials involved are non-vibratile.
It will, of course, be apparent that any back-pressure in the line controlled by the check-valve, such as occurs when it is used as a foot valve in a well installation, as shown in FIGURE 10, will act to press the cap 21 securely against its seat 28 and `sealof the passages 18 through the disc 15, and prevent back-ow of any fluid in the line.
- Since all the action of the check-valve is accomplished solely through the described flexing of the valvehead 20 itself it does not matter in what position the unit 10 is installed.
It may be installed in either vertical 0r horizontal pipe-lines 26, as seen in FIGURES 8 and 9, or it may be positioned at the lower end of a vertical well-pipeline with a conventional filter cage 27 screwed into its intake end, as seen in FIGURE l0.l
` It will now be clear that there is provided a device which ,accomplishes the objectives heretofore set forth.
While vthe invention has been disclosed in its preferred form, it is to be understood that the specific embodiment thereof, as described and illustrated herein, is not to be considered in a limited sense as there may be other forms of modifications of the invention which should also be construed to come within the scope of the appended claims.
` I claim:
1. A silent check-valve adapted to control fluid ow in a pipe line, comprising in combination:
(a) ahollow cylindrical body, having a threaded bore therethrough, adapted to be inserted in a pipe line;
(b) a rigid, non-vibratile, plastic disc having a threaded peripheraledge, threadedly mounted in the body bore intermediate the ends thereof;
the disc having parallel lower and upper faces dening a valve seat having a central valve stern bore surrounded by a plurality of spaced fluid passages; (c) the body wall being circumferentally displaced Ainwardly, atY the disc, to effect plastic flow of the threaded disc edge, and lock the disc against rotation and create a fluid-tight seal between the disc and the body bore wall; and,
(d) a unitary valve-head, fabricated from inherently resilient, non-vibratile, plastic material, having a circular cap tapered to a circumferential feathered edge, and a dependent mounting stem having a frustoconical retaining button at the lower end thereof terminating, at its apex, in an elongated tail;
v(e) the valve-head being mounted on the disc, with its stem nested in the disc center bore and its cap and button seated against the upper and lower faces, respectively, of the disc;
(f) the valve-head cap being free to flip, responsive to uid pressure in the pipe line, between a first position, wherein it is seated against the upper disc face, whereat it covers all the fluid passages to block fluid How, and a second position, wherein its periphery is flexed away from the upper disc face, clear of the passageways, to allow free flow of fluid therethrough.
2. A silent check-valve, as in claim 1, wherein, the disc is fabricated from nylon and the valve-head is fabricated of natural rubber.
References Cited UNITED STATES PATENTS 2,576,637 11/1951 Patriguin IS7-516.11 X 2,777,464 l/l957 Mosely 137-516.13 3,055,390 9/1962 Scheldorf l37-5l6.l5
LEONARD D. CHRISTIAN, Primary Examiner.
Claims (1)
1. A SILENT CHECK-VALVE ADAPTED TO CONTROL FLUID FLOW IN A PIPE LINE, COMPRISING IN COMBINATION: (A) A HOLLOW CYLINDRICAL BODY, HAVING A THREADED BORE THERETHROUGH, ADAPTED TO BE INSERTED IN A PIPE LINE; (B) A RIGID, NON-VIBRATILE, PLASTIC DISC HAVING A THREADED PERIPHERAL EDGE, THREADEDLY MOUNTED IN THE BODY BORE INTERMEDIATE THE ENDS THEREOF; THE DISC HAVING A PARALLEL LOWER AND UPPER FACES DEFINING A VALVE SEAT HAVING A CENTRAL VALVE STEM BORE SURROUNDED BY A PLURALITY OF SPACED FLUID PASSAGES; (C) THE BODY WALL BEING CIRCUMFERENTIALLY DISPLACED INWARDLY, AT THE DISC, TO EFFECT PLASTC FLOW OF THE THREADED DISC EDGE, AND LOCK THE DISC AGAINST ROTATION AND CREATE A FLUID-TIGHT SEAL BETWEEN THE DISC AND THE BODY BORE WALL; AND, (D) A UNITARY VALVE-HEAD, FABRICATED FROM INHERENTLY RESILIENT, NON-VIBRATILE, PLASTIC MATERIAL, HAVING A CIRCULAR CAP TAPERED TO A CIRCUMFERENTIAL FEATHERED EDGE, AND A DEPENDENT MOUNTING STEM HAVING A FRUSTOCONICAL RETAINING BOTTOM AT THE LOWER END THEREOF TERMINATING, AT ITS APEX, IN AN ELONGATED TAIL;
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US588180A US3403696A (en) | 1966-10-20 | 1966-10-20 | Silent check-valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US588180A US3403696A (en) | 1966-10-20 | 1966-10-20 | Silent check-valve |
Publications (1)
Publication Number | Publication Date |
---|---|
US3403696A true US3403696A (en) | 1968-10-01 |
Family
ID=24352807
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US588180A Expired - Lifetime US3403696A (en) | 1966-10-20 | 1966-10-20 | Silent check-valve |
Country Status (1)
Country | Link |
---|---|
US (1) | US3403696A (en) |
Cited By (53)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1911219A1 (en) * | 1967-06-02 | 1969-09-25 | Pall Corp | T-connector with double valve |
US3705685A (en) * | 1970-01-07 | 1972-12-12 | Gen Motors Corp | Engine idle speed governor and throttle control |
US3858412A (en) * | 1972-07-07 | 1975-01-07 | Gkn Transmissions Ltd | Universal joint with breather valve |
US3929158A (en) * | 1974-07-03 | 1975-12-30 | Stant Mfg Co | Remote pressure-vacuum relief valve assembly |
FR2286657A1 (en) * | 1974-10-01 | 1976-04-30 | Toulouse Inst Serotherapie | Double effect syringe for animal vaccination - with disc valve in piston and inlet for successive doses |
US3968897A (en) * | 1974-07-03 | 1976-07-13 | Stant Manufacturing Company, Inc. | Pressure-vacuum relief valve assembly |
US3981636A (en) * | 1973-07-20 | 1976-09-21 | Toyota Jidosha Kogyo Kabushiki Kaisha | Diaphragm vacuum pump |
US4079750A (en) * | 1976-03-04 | 1978-03-21 | Tom Mcguane Industries, Inc. | Vacuum delay valve |
US4204555A (en) * | 1978-06-12 | 1980-05-27 | Midland-Ross Corporation | Exhaust valve assembly |
US4231724A (en) * | 1978-03-09 | 1980-11-04 | Hope Henry F | Adjustable metering pump |
US4401224A (en) * | 1979-04-13 | 1983-08-30 | Ferdinand Alonso | Feeding bottle for infants |
US4413990A (en) * | 1981-08-31 | 1983-11-08 | Baxter Travenol Laboratories, Inc. | Air bypass valve assembly for a medical fluid administration set |
US4518014A (en) * | 1981-02-21 | 1985-05-21 | Mcalpine & Co., Ltd. | Relief valves for sanitation systems or the like |
US4632151A (en) * | 1983-09-15 | 1986-12-30 | Grundy (Teddington) Limited | Non-return valves |
US4781674A (en) * | 1987-01-30 | 1988-11-01 | Vir Engineering | Fluid flow control valve |
US4890760A (en) * | 1989-04-14 | 1990-01-02 | Nicoll Sr Douglas | Trash receptacle with vacuum breaking means |
US4904236A (en) * | 1987-01-30 | 1990-02-27 | Vir Engineering | Fluid flow control valve |
US5060689A (en) * | 1989-08-24 | 1991-10-29 | Ced's, Inc. | Universal check valve assembly |
US5231982A (en) * | 1989-07-18 | 1993-08-03 | Her Majesty The Queen In Right Of Canada | Molded nosecup valve assembly |
US5275309A (en) * | 1990-08-14 | 1994-01-04 | Lykes Pasco, Inc. | One way valve with unitary valve element |
US5320253A (en) * | 1990-08-15 | 1994-06-14 | Horstine Farmery Limited | Apparatus for dispensing agricultural liquid chemicals |
US5413599A (en) * | 1988-09-20 | 1995-05-09 | Nippon Zeon Co., Ltd. | Medical valve apparatus |
WO1995016619A1 (en) * | 1993-12-15 | 1995-06-22 | New West Products, Inc. | Reusable-evacuable enclosure |
WO1995034776A1 (en) * | 1994-06-13 | 1995-12-21 | Franz Schulte | Non-return valve |
US5480030A (en) * | 1993-12-15 | 1996-01-02 | New West Products, Inc. | Reusable, evacuable enclosure for storage of clothing and the like |
US5901747A (en) * | 1998-06-22 | 1999-05-11 | Micro Matic U.S.A., Inc. | Liquid transfer system with flow control |
US6095762A (en) * | 1997-08-08 | 2000-08-01 | Black & Decker Inc. | Compressor mechanism for a portable battery operated inflator |
US6202849B1 (en) | 1999-07-07 | 2001-03-20 | David B. Graham | Evacuatable rigid storage unit for storing compressible articles therein |
US6293229B1 (en) | 2000-04-18 | 2001-09-25 | Edstrom Industries, Inc. | Cage flood prevention system |
US20020057990A1 (en) * | 2000-08-08 | 2002-05-16 | Nicola Ghelli | Pulsating pumping unit for a fluid, particularly blood |
US6408872B1 (en) | 1993-12-15 | 2002-06-25 | New West Products, Inc. | Evacuable container having one-way valve with filter element |
US6530843B2 (en) * | 2000-08-28 | 2003-03-11 | Gkn Automotive, Inc. | Constant velocity joint vent |
US6644510B2 (en) * | 2001-06-29 | 2003-11-11 | The Meyer Company | Bag-in-box container and faucet |
US6701559B2 (en) | 2001-08-01 | 2004-03-09 | Aero Products International, Inc. | Increased height inflatable support system |
US20040200527A1 (en) * | 1996-07-19 | 2004-10-14 | Chaffee Robert B. | Valve for inflatable objects |
US20050246038A1 (en) * | 2001-10-09 | 2005-11-03 | O'keefe Christopher R | Anti-reflux drainage devices and methods |
US20060162779A1 (en) * | 2004-10-08 | 2006-07-27 | Chaffee Robert B | Methods and apparatus for controlling air in inflatable devices |
US20060239837A1 (en) * | 2004-12-01 | 2006-10-26 | Cheung George F | Vacuum pump valve |
US20070028978A1 (en) * | 2005-08-02 | 2007-02-08 | Jeng Shwu Y | Innovative valve mechanism for detergent dispenser |
US20070169274A1 (en) * | 2001-08-01 | 2007-07-26 | Boso Karen L | Inflatable reinforcing chamber |
US20070227594A1 (en) * | 2006-04-04 | 2007-10-04 | Chaffee Robert B | Method and apparatus for monitoring and controlling pressure in an inflatable device |
US20080229508A1 (en) * | 2000-05-17 | 2008-09-25 | Chaffee Robert B | Inflatable device with recessed fluid controller and modified adjustment device |
US20090050217A1 (en) * | 2007-08-22 | 2009-02-26 | Peter Francis Worrel | Check Valve |
US20090300846A1 (en) * | 2001-07-10 | 2009-12-10 | Chaffee Robert B | Inflatable device forming mattresses and cushions |
US20090314354A1 (en) * | 2006-04-04 | 2009-12-24 | Chaffee Robert B | Method and apparatus for monitoring and controlling pressure in an inflatable device |
US20100108157A1 (en) * | 2000-05-17 | 2010-05-06 | Chaffee Robert B | Valve with electromechanical device for actuating the valve |
CN102287365A (en) * | 2011-08-31 | 2011-12-21 | 胡军 | Umbrella-shaped valve special for piezoelectric pump |
US20120138171A1 (en) * | 2010-12-02 | 2012-06-07 | Elringklinger Ag | Oil separator unit |
US8776293B2 (en) | 2001-03-30 | 2014-07-15 | Robert B. Chaffee | Pump with axial conduit |
US20150316158A1 (en) * | 2014-05-01 | 2015-11-05 | Fisher Controls International Llc | Vent assembly and method for a digital valve positioner |
US9518669B2 (en) * | 2014-12-22 | 2016-12-13 | Conbraco Industries, Inc. | Dual check backflow preventer |
US9737153B2 (en) | 2001-07-10 | 2017-08-22 | Robert B. Chaffee | Configurable inflatable support devices |
US9752693B2 (en) | 2012-08-03 | 2017-09-05 | Robert B. Chaffee | Self-sealing valve |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2576637A (en) * | 1949-01-29 | 1951-11-27 | Gabriel Co | Valve for shock absorbers |
US2777464A (en) * | 1951-03-07 | 1957-01-15 | Detroit Controls Corp | Flow control devices |
US3055390A (en) * | 1961-03-20 | 1962-09-25 | Gen Electric | Valve assembly for compressors and the like |
-
1966
- 1966-10-20 US US588180A patent/US3403696A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2576637A (en) * | 1949-01-29 | 1951-11-27 | Gabriel Co | Valve for shock absorbers |
US2777464A (en) * | 1951-03-07 | 1957-01-15 | Detroit Controls Corp | Flow control devices |
US3055390A (en) * | 1961-03-20 | 1962-09-25 | Gen Electric | Valve assembly for compressors and the like |
Cited By (87)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1911219A1 (en) * | 1967-06-02 | 1969-09-25 | Pall Corp | T-connector with double valve |
US3705685A (en) * | 1970-01-07 | 1972-12-12 | Gen Motors Corp | Engine idle speed governor and throttle control |
US3858412A (en) * | 1972-07-07 | 1975-01-07 | Gkn Transmissions Ltd | Universal joint with breather valve |
US3981636A (en) * | 1973-07-20 | 1976-09-21 | Toyota Jidosha Kogyo Kabushiki Kaisha | Diaphragm vacuum pump |
US3929158A (en) * | 1974-07-03 | 1975-12-30 | Stant Mfg Co | Remote pressure-vacuum relief valve assembly |
US3968897A (en) * | 1974-07-03 | 1976-07-13 | Stant Manufacturing Company, Inc. | Pressure-vacuum relief valve assembly |
FR2286657A1 (en) * | 1974-10-01 | 1976-04-30 | Toulouse Inst Serotherapie | Double effect syringe for animal vaccination - with disc valve in piston and inlet for successive doses |
US4079750A (en) * | 1976-03-04 | 1978-03-21 | Tom Mcguane Industries, Inc. | Vacuum delay valve |
US4231724A (en) * | 1978-03-09 | 1980-11-04 | Hope Henry F | Adjustable metering pump |
US4204555A (en) * | 1978-06-12 | 1980-05-27 | Midland-Ross Corporation | Exhaust valve assembly |
US4401224A (en) * | 1979-04-13 | 1983-08-30 | Ferdinand Alonso | Feeding bottle for infants |
US4518014A (en) * | 1981-02-21 | 1985-05-21 | Mcalpine & Co., Ltd. | Relief valves for sanitation systems or the like |
US4413990A (en) * | 1981-08-31 | 1983-11-08 | Baxter Travenol Laboratories, Inc. | Air bypass valve assembly for a medical fluid administration set |
US4632151A (en) * | 1983-09-15 | 1986-12-30 | Grundy (Teddington) Limited | Non-return valves |
US4781674A (en) * | 1987-01-30 | 1988-11-01 | Vir Engineering | Fluid flow control valve |
US4904236A (en) * | 1987-01-30 | 1990-02-27 | Vir Engineering | Fluid flow control valve |
US5413599A (en) * | 1988-09-20 | 1995-05-09 | Nippon Zeon Co., Ltd. | Medical valve apparatus |
US4890760A (en) * | 1989-04-14 | 1990-01-02 | Nicoll Sr Douglas | Trash receptacle with vacuum breaking means |
US5231982A (en) * | 1989-07-18 | 1993-08-03 | Her Majesty The Queen In Right Of Canada | Molded nosecup valve assembly |
US5060689A (en) * | 1989-08-24 | 1991-10-29 | Ced's, Inc. | Universal check valve assembly |
US5275309A (en) * | 1990-08-14 | 1994-01-04 | Lykes Pasco, Inc. | One way valve with unitary valve element |
US5320253A (en) * | 1990-08-15 | 1994-06-14 | Horstine Farmery Limited | Apparatus for dispensing agricultural liquid chemicals |
GB2299616A (en) * | 1993-12-15 | 1996-10-09 | New West Products Inc | Reusable-evacuable enclosure |
US6837268B2 (en) | 1993-12-15 | 2005-01-04 | Illinois Tool Works Inc. | Evacuable container having one-way valve with filter element |
US5480030A (en) * | 1993-12-15 | 1996-01-02 | New West Products, Inc. | Reusable, evacuable enclosure for storage of clothing and the like |
WO1995016619A1 (en) * | 1993-12-15 | 1995-06-22 | New West Products, Inc. | Reusable-evacuable enclosure |
GB2299616B (en) * | 1993-12-15 | 1997-04-02 | New West Products Inc | Closure for reusable, evacuable enclosure |
US20030178066A1 (en) * | 1993-12-15 | 2003-09-25 | Skeens Janet L. | Evacuable container having one-way valve with filter element |
US6575191B2 (en) | 1993-12-15 | 2003-06-10 | Illinois Tool Works Inc. | Evacuable container having one-way valve with filter element |
US5931189A (en) * | 1993-12-15 | 1999-08-03 | New West Products, Inc. | One way valve for use with vacuum cleaner attachment |
US6408872B1 (en) | 1993-12-15 | 2002-06-25 | New West Products, Inc. | Evacuable container having one-way valve with filter element |
US5860449A (en) * | 1994-06-13 | 1999-01-19 | A. Kayser Automotive Systems Gmbh | Back-flow check valve |
WO1995034776A1 (en) * | 1994-06-13 | 1995-12-21 | Franz Schulte | Non-return valve |
US6986360B2 (en) | 1996-07-19 | 2006-01-17 | Chaffee Robert B | Valve for inflatable objects |
US7938138B2 (en) | 1996-07-19 | 2011-05-10 | Robert B. Chaffee | Valve for inflatable objects |
US8307841B2 (en) | 1996-07-19 | 2012-11-13 | Chaffee Robert B | Valve for inflatable objects |
US9086162B2 (en) | 1996-07-19 | 2015-07-21 | Robert B. Chaffee | Valve for inflatable objects |
US20040200527A1 (en) * | 1996-07-19 | 2004-10-14 | Chaffee Robert B. | Valve for inflatable objects |
US20060054855A1 (en) * | 1996-07-19 | 2006-03-16 | Chaffee Robert B | Valve for inflatable objects |
US6095762A (en) * | 1997-08-08 | 2000-08-01 | Black & Decker Inc. | Compressor mechanism for a portable battery operated inflator |
US5901747A (en) * | 1998-06-22 | 1999-05-11 | Micro Matic U.S.A., Inc. | Liquid transfer system with flow control |
US6202849B1 (en) | 1999-07-07 | 2001-03-20 | David B. Graham | Evacuatable rigid storage unit for storing compressible articles therein |
US6293229B1 (en) | 2000-04-18 | 2001-09-25 | Edstrom Industries, Inc. | Cage flood prevention system |
US8826478B2 (en) | 2000-05-17 | 2014-09-09 | Robert B. Chaffee | Inflatable device forming mattresses and cushions |
US8413674B2 (en) | 2000-05-17 | 2013-04-09 | Robert B. Chaffee | Valve with electromechanical device for actuating the valve |
US20080229508A1 (en) * | 2000-05-17 | 2008-09-25 | Chaffee Robert B | Inflatable device with recessed fluid controller and modified adjustment device |
US9279510B2 (en) | 2000-05-17 | 2016-03-08 | Robert B. Chaffee | Valve with electromechanical device for actuating the valve |
US20110167564A1 (en) * | 2000-05-17 | 2011-07-14 | Chaffee Robert B | Inflatable device with recessed fluid controller and modified adjustment device |
US9279430B2 (en) | 2000-05-17 | 2016-03-08 | Robert B. Chaffee | Pump with axial conduit |
US20100108157A1 (en) * | 2000-05-17 | 2010-05-06 | Chaffee Robert B | Valve with electromechanical device for actuating the valve |
US6899693B2 (en) * | 2000-08-08 | 2005-05-31 | Dideco S.P.A. | Pulsating pumping unit for a fluid, particularly blood |
US20020057990A1 (en) * | 2000-08-08 | 2002-05-16 | Nicola Ghelli | Pulsating pumping unit for a fluid, particularly blood |
US6530843B2 (en) * | 2000-08-28 | 2003-03-11 | Gkn Automotive, Inc. | Constant velocity joint vent |
US8776293B2 (en) | 2001-03-30 | 2014-07-15 | Robert B. Chaffee | Pump with axial conduit |
US6644510B2 (en) * | 2001-06-29 | 2003-11-11 | The Meyer Company | Bag-in-box container and faucet |
US9737153B2 (en) | 2001-07-10 | 2017-08-22 | Robert B. Chaffee | Configurable inflatable support devices |
US8225444B2 (en) | 2001-07-10 | 2012-07-24 | Chaffee Robert B | Inflatable device forming mattresses and cushions |
US20090300846A1 (en) * | 2001-07-10 | 2009-12-10 | Chaffee Robert B | Inflatable device forming mattresses and cushions |
US6701559B2 (en) | 2001-08-01 | 2004-03-09 | Aero Products International, Inc. | Increased height inflatable support system |
US20070169274A1 (en) * | 2001-08-01 | 2007-07-26 | Boso Karen L | Inflatable reinforcing chamber |
US7478448B2 (en) | 2001-08-01 | 2009-01-20 | Aero Products International, Inc. | Inflatable reinforcing chamber |
US20050246038A1 (en) * | 2001-10-09 | 2005-11-03 | O'keefe Christopher R | Anti-reflux drainage devices and methods |
US7670332B2 (en) * | 2001-10-09 | 2010-03-02 | Boston Scientific Scimed, Inc. | Anti-reflux drainage devices and methods |
US20100089458A1 (en) * | 2004-10-08 | 2010-04-15 | Chaffee Robert B | Methods and apparatus for controlling air in inflatable devices |
US20060162779A1 (en) * | 2004-10-08 | 2006-07-27 | Chaffee Robert B | Methods and apparatus for controlling air in inflatable devices |
US7726505B2 (en) * | 2004-12-01 | 2010-06-01 | Cheung George F | Vacuum pump valve |
US20060239837A1 (en) * | 2004-12-01 | 2006-10-26 | Cheung George F | Vacuum pump valve |
US20070028978A1 (en) * | 2005-08-02 | 2007-02-08 | Jeng Shwu Y | Innovative valve mechanism for detergent dispenser |
US8413278B2 (en) | 2006-04-04 | 2013-04-09 | Robert B. Chaffee | Method and apparatus for monitoring and controlling pressure in an inflatable device |
US20090314354A1 (en) * | 2006-04-04 | 2009-12-24 | Chaffee Robert B | Method and apparatus for monitoring and controlling pressure in an inflatable device |
US9289073B2 (en) | 2006-04-04 | 2016-03-22 | Robert B. Chaffee | Method and apparatus for monitoring and controlling pressure in an inflatable device |
US20070227594A1 (en) * | 2006-04-04 | 2007-10-04 | Chaffee Robert B | Method and apparatus for monitoring and controlling pressure in an inflatable device |
US8162009B2 (en) | 2006-04-04 | 2012-04-24 | Chaffee Robert B | Method and apparatus for monitoring and controlling pressure in an inflatable device |
US8839474B2 (en) | 2006-04-04 | 2014-09-23 | Robert B. Chaffee | Method and apparatus for monitoring and controlling pressure in an inflatable device |
US20090050217A1 (en) * | 2007-08-22 | 2009-02-26 | Peter Francis Worrel | Check Valve |
US8282368B2 (en) * | 2007-08-22 | 2012-10-09 | Ford Global Technologies, Llc | Check valve |
US10041386B2 (en) * | 2010-12-02 | 2018-08-07 | Elringklinger Ag | Oil separator unit |
US20120138171A1 (en) * | 2010-12-02 | 2012-06-07 | Elringklinger Ag | Oil separator unit |
CN102287365A (en) * | 2011-08-31 | 2011-12-21 | 胡军 | Umbrella-shaped valve special for piezoelectric pump |
WO2013029406A1 (en) * | 2011-08-31 | 2013-03-07 | Yang Zhujun | Umbrella valve dedicated for use in piezoelectric pump |
US9752693B2 (en) | 2012-08-03 | 2017-09-05 | Robert B. Chaffee | Self-sealing valve |
US9989159B2 (en) * | 2014-05-01 | 2018-06-05 | Fisher Controls International Llc | Vent assembly and method for a digital valve positioner |
US20150316158A1 (en) * | 2014-05-01 | 2015-11-05 | Fisher Controls International Llc | Vent assembly and method for a digital valve positioner |
US10228066B2 (en) | 2014-05-01 | 2019-03-12 | Fisher Controls International Llc | Vent assembly and method for a digital valve positioner |
US9725888B2 (en) | 2014-12-22 | 2017-08-08 | Conbraco Industries, Inc. | Dual check backflow preventer |
US9518669B2 (en) * | 2014-12-22 | 2016-12-13 | Conbraco Industries, Inc. | Dual check backflow preventer |
US10323394B2 (en) | 2014-12-22 | 2019-06-18 | Conbraco Industries, Inc. | Dual check backflow preventer |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3403696A (en) | Silent check-valve | |
US3159176A (en) | Check-relief valve | |
US2107200A (en) | Valve | |
US3379406A (en) | Diaphragm valve with water hammer preventer | |
US3951379A (en) | Flow control device | |
US2988322A (en) | Diaphragm valve | |
US3548869A (en) | Soft seated valve | |
US2952439A (en) | Valve assembly | |
US1947071A (en) | Valve | |
US2667893A (en) | Relief valve | |
US2346938A (en) | Valve | |
US3386469A (en) | Pressure regulator | |
US2401237A (en) | Booster pressure relief valve | |
US2717757A (en) | Valve means | |
US3267960A (en) | Automatic drain valve | |
US2942617A (en) | Slip check valve | |
US3095905A (en) | Diaphragm valve | |
US3229714A (en) | Regulating valve within a coupling | |
US1530924A (en) | Slush-pump valve | |
US2904794A (en) | Toilet flush valve assembly | |
US2236253A (en) | Leakproof valve | |
US2606570A (en) | Tire inflation-relief valve | |
US2633862A (en) | Water faucet | |
US2554053A (en) | Automatic backwater valve | |
US954313A (en) | Inlet-valve and water-screen for pumps. |