US3408731A - Method of retaining cover member on pressure vessel - Google Patents
Method of retaining cover member on pressure vessel Download PDFInfo
- Publication number
- US3408731A US3408731A US544769A US54476966A US3408731A US 3408731 A US3408731 A US 3408731A US 544769 A US544769 A US 544769A US 54476966 A US54476966 A US 54476966A US 3408731 A US3408731 A US 3408731A
- Authority
- US
- United States
- Prior art keywords
- cover member
- pressure vessel
- mouth
- container
- rim
- 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
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/12—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means attached at their periphery
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/106—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means characterised by the way housing components are assembled
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/20—Accumulator cushioning means
- F15B2201/205—Accumulator cushioning means using gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3152—Accumulator separating means having flexible separating means the flexible separating means being bladders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3156—Accumulator separating means having flexible separating means characterised by their attachment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/415—Gas ports
- F15B2201/4155—Gas ports having valve means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/43—Anti-extrusion means
- F15B2201/435—Anti-extrusion means being fixed to the separating means
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49915—Overedge assembling of seated part
- Y10T29/49917—Overedge assembling of seated part by necking in cup or tube wall
- Y10T29/49918—At cup or tube end
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49908—Joining by deforming
- Y10T29/49925—Inward deformation of aperture or hollow body wall
- Y10T29/49934—Inward deformation of aperture or hollow body wall by axially applying force
Definitions
- This invention relates to a method of retaining cover members on pressure vessels, more particularly to a method of retaining a cover member on a pressure vessel of the type having an enlarged mouth with a cover member positioned therein and retained in fixed position by bending over the periphery of such mouth.
- pressure vessels of the above type utilize a deformable bladder, the mouth of which is secured between the cover member and the adjacent wall of the container and which defines two chambers in the container on opposed sides thereof which are in communication respectively with ports through which fluid may flow into and out of the pressure vessel, if the cover member should not be securely retained in fixed position, it is likely to reciprocate slightly during use of the container due to variations of pressure therein.
- breathing action causes a pumping to occur at the sealed mouth of the bladder so that the film of oil which is inherently present on the wall surface of the container will creep out of the container with resultant dripping and contamination of the room in which the equipment is used, which is especiallyserious when the equipment is used on dental chairs, in hospitals to control operating tables and the like or to control hospital beds.
- FIG. 1 is a longitudinal sectional view of a pressure vessel according to the invention
- FIGS. 2, 3, and 4 are fragmentary sectional views illustrating the steps for securely retaining the cover member in fixed position according to the invention.
- FIG. 5 is a fragmentary sectional view of the closed mouth of the pressure vessel.
- the pressure vessel comprises a container 10 of strong rigid material such as aluminum, steel or the like, capable of withstanding high pressure.
- the container 10 is cylindrical along the major portion of the body thereof and is closed at one end as at 12, said end having an axial port 13 therethroughdefining the liquid port of the pressure vessel.
- the cylindrical portion 11 of the container 10 at the mouth thereof is of larger diameter than the main body portion of the container defining a curved shoulder 14 to receive a cover member 15.
- the cover member 15 has a depending portion 16 which fits into the mouth of the container, said depending portion 16 being conformed adjacent its inner end with an annular groove 17 to receive the annular bead 18 at the mouth of a bladder 19 to retain the latter in fixed position in the container.
- the cover member has a curved periphery 21 conformed to the curvature of the shoulder 14, and the portion 22 of the top surface of the cover member 15 adjacent the curved periphery 21 thereof illustratively is slightly curved.
- the central portion 23 of the cover member 15 is slightly arched and provided with an axial opening 24.
- the depending portion 16 of the cover member has a cylindrical portion 25 which fits relatively snugly in the cylindrical portion of container 10 adjacent the curved shoulder 14 so that the cover member 16 will be accurately centered therein.
- the bladder is of resilient material such as rubber or synthetic plastic of like physical characteristics and is expansible and deformable in order to provide its desired function.
- the bladder 19 defines two chambers in the pressure vessel, i.e., illustratively an oil chamber 26 between the outer wall of the bladder and the inner surface of the container, which camber is in communication with port 13 and a gas chamber 27 in the bladder 19 which is in communication with the axial opening or port 24 in the cover member, the latter illustratively having an air valve (not shown) positioned therein for charging the bladder 19.
- the closed end 12 of the container is in the form of a fulcrum of a cone defining an inclined surface 28, the lower end of which surface defines the inner end of port 13.
- the free end 29 of the bladder 19 has a button 31 secured thereto and axially aligned with the longitudinal axis of the bladder 19.
- the button is of material harder than that of the bladder and may, for example, be of neoprene, aluminum or other suitable material.
- the outer surface 32 of the button 31 also has the form of a fulcrum of a cone.
- the angle of inclination of the outer surface 32 of the button 31 and the angle of inclination of the inclined surface 28 of the end 12 of the container are approximately the same.
- the tange'nt of each angle must be greater than the tangent of the angle of friction, which angle is dependent on the materials used, the finish of the materials as well as the fluid that is utilized in the container.
- the cover member 15 is securely retained in position in the illustrative embodiment shown by inwardly bending the enlarged cylindrical portion or mouth 11 of the container.
- the pressure vessel preferably is assembled in the following manner,
- the cover member 15 with the annular bead'18r of the bladder 19 positioned in the annular groove 17 is first positioned in the enlarged mouth 11 of the container so that the curved periphery 21 of the cover member '15 rests on the curved shoulder '14, the cylindrical portion 25 of the depending portion 16 of the cover member 15 accurately centering the cover member in the container. 1
- the container with the cover member 15 positioned therein is then positioned in a corresponding cavity C in a suitable base member B which holds the container in upright position. Thereupon, a die 41 is moved against the outer periphery 42 of the rim 43 of the enlarged mouth portion 11 of the container to effect the retention of the cover member.
- the die 41 illustratively has two separate and distinct elements 41a and 41b.
- the element 41a has a central opening 44 slidably to receive the element 41b.
- The-element 41a of the die 41 has a substantially cylindrical wall surface 45 extending upwardly from its lower edge 46 for a dis tance greater than the length of the enlarged mouth portion 11 of the container 10above the curved shoulder 14 thereof.
- the wall surface 45 has a curvature 47 which corresponds to the curvature of the periphery 21 of the cover member 15.
- the element 41b has a curved annular pressing surface 48 which has an inclination less with respect to the horizontal than the inclination of the slightly curved portion 22 of the cover member and as illustratively shown, such curved pressing surface 48 is a continuation of the curvature of the portion 47 of the element 41a.
- the element 41b has a head 51 of diameter greater than that of opening 44 in element 41a so that the periphery 52 of head 51 may move against the top surface 53 of the die element 41a.
- the method of retaining a cover member having anupwardly inclined top surface and a curved periphery in fixed position Lina cylindrical pressure vessel having an enlarged diameter cylindrical mouth defining a curved shoulder to restrain axial movement of the cover member in use of the pressure vessel, due to variation of pressure therein, which comprises the steps of inserting the cover member into the mouth of the pressureyessel so that the curved periphery of the cover member seats on such curved shoulder, applying force,against the outer periphery of the rim of the'mouth of the pressure vessel as well as the adjacent portion thereof which extends beyond said curved shoulder indirection to move such rim inwardly until theinner periphery of such rim is substantially against the upwardly inclined top surface of the cover member and the adjacent inner surface of the enlarged diameter mouthis slightly spaced from .said inclined top surface, andthereupon applying force in.
Description
Claims (1)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US544769A US3408731A (en) | 1966-04-25 | 1966-04-25 | Method of retaining cover member on pressure vessel |
US743746A US3541833A (en) | 1966-04-25 | 1968-07-10 | Apparatus for forming pressure vessel ends |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US544769A US3408731A (en) | 1966-04-25 | 1966-04-25 | Method of retaining cover member on pressure vessel |
Publications (1)
Publication Number | Publication Date |
---|---|
US3408731A true US3408731A (en) | 1968-11-05 |
Family
ID=24173520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US544769A Expired - Lifetime US3408731A (en) | 1966-04-25 | 1966-04-25 | Method of retaining cover member on pressure vessel |
Country Status (1)
Country | Link |
---|---|
US (1) | US3408731A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3830259A (en) * | 1971-03-04 | 1974-08-20 | J Mercier | Pressure vessel |
US3863740A (en) * | 1971-06-02 | 1975-02-04 | Girling Ltd | Seal for hydraulic damper |
US4308973A (en) * | 1978-06-30 | 1982-01-05 | The Continental Group, Inc. | Compartmented aerosol container |
US4457196A (en) * | 1980-12-17 | 1984-07-03 | Houdaille Industries, Inc. | Punch press assembly including a preloaded encapsulted spring |
US4587833A (en) * | 1983-10-06 | 1986-05-13 | Mcdonnell Douglas Corporation | Staking system |
US4889189A (en) * | 1983-10-28 | 1989-12-26 | Rozniecki Edward J | Fire suppressant mechanism and method for sizing same |
WO1996021605A1 (en) * | 1995-01-12 | 1996-07-18 | Abplanalp Robert H | Flexible barrier member useful in aerosol dispensers |
US5918355A (en) * | 1994-07-25 | 1999-07-06 | Nok Corporation | Apparatus for making an accumulator |
US6343713B1 (en) | 1993-06-29 | 2002-02-05 | Robert Henry Abplanalp | Flexible barrier member useful in aerosol dispensers |
US6419129B1 (en) | 1994-06-02 | 2002-07-16 | Robert Henry Abplanalp | Flexible barrier member useful in aerosol dispensers |
US6460571B1 (en) | 2001-03-13 | 2002-10-08 | Parker-Hannifin Corporation | Crimped piston/membrane accumulator |
JP2006516706A (en) * | 2003-02-01 | 2006-07-06 | ハイダック テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング | Manufacturing method of piston type accumulator |
GB2431965A (en) * | 2005-11-01 | 2007-05-09 | Aker Kvaerner Subsea Ltd | Toroidal hydraulic accumulator for subsea control module |
US20080189925A1 (en) * | 2005-08-23 | 2008-08-14 | Taho Valves Corporation | Method for making water buffer device |
US11131330B1 (en) * | 2020-03-30 | 2021-09-28 | Caterpillar Inc. | Crimp retained hydraulic cylinder head and cap |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1521732A (en) * | 1920-02-10 | 1925-01-06 | William S Thomas | Process for securing jackets on electrode insulators |
US1753465A (en) * | 1928-04-30 | 1930-04-08 | Adams Ind Inc | Means for making flexible tubular conduits |
US2167654A (en) * | 1936-06-23 | 1939-08-01 | American Can Co | Method of securing soft metal spouts to containers |
US2648123A (en) * | 1949-11-26 | 1953-08-11 | Weatherhead Co | Method of making a hose end coupling |
US2690645A (en) * | 1951-01-11 | 1954-10-05 | Hamilton Watch Co | Watch crown |
US3054173A (en) * | 1954-06-16 | 1962-09-18 | Frank A Rudman | Method of assembling pressure sealed joints in hollow vessels |
US3168907A (en) * | 1961-05-30 | 1965-02-09 | Mercier Olaer Patent Corp | Pressure vessel |
US3211348A (en) * | 1964-05-21 | 1965-10-12 | Greer Hydraulics Inc | Pressure vessels |
-
1966
- 1966-04-25 US US544769A patent/US3408731A/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1521732A (en) * | 1920-02-10 | 1925-01-06 | William S Thomas | Process for securing jackets on electrode insulators |
US1753465A (en) * | 1928-04-30 | 1930-04-08 | Adams Ind Inc | Means for making flexible tubular conduits |
US2167654A (en) * | 1936-06-23 | 1939-08-01 | American Can Co | Method of securing soft metal spouts to containers |
US2648123A (en) * | 1949-11-26 | 1953-08-11 | Weatherhead Co | Method of making a hose end coupling |
US2690645A (en) * | 1951-01-11 | 1954-10-05 | Hamilton Watch Co | Watch crown |
US3054173A (en) * | 1954-06-16 | 1962-09-18 | Frank A Rudman | Method of assembling pressure sealed joints in hollow vessels |
US3168907A (en) * | 1961-05-30 | 1965-02-09 | Mercier Olaer Patent Corp | Pressure vessel |
US3211348A (en) * | 1964-05-21 | 1965-10-12 | Greer Hydraulics Inc | Pressure vessels |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3830259A (en) * | 1971-03-04 | 1974-08-20 | J Mercier | Pressure vessel |
US3863740A (en) * | 1971-06-02 | 1975-02-04 | Girling Ltd | Seal for hydraulic damper |
US4308973A (en) * | 1978-06-30 | 1982-01-05 | The Continental Group, Inc. | Compartmented aerosol container |
US4457196A (en) * | 1980-12-17 | 1984-07-03 | Houdaille Industries, Inc. | Punch press assembly including a preloaded encapsulted spring |
US4587833A (en) * | 1983-10-06 | 1986-05-13 | Mcdonnell Douglas Corporation | Staking system |
US4889189A (en) * | 1983-10-28 | 1989-12-26 | Rozniecki Edward J | Fire suppressant mechanism and method for sizing same |
US6343713B1 (en) | 1993-06-29 | 2002-02-05 | Robert Henry Abplanalp | Flexible barrier member useful in aerosol dispensers |
US6419129B1 (en) | 1994-06-02 | 2002-07-16 | Robert Henry Abplanalp | Flexible barrier member useful in aerosol dispensers |
US5924196A (en) * | 1994-07-25 | 1999-07-20 | Nok Corporation | Accumulator, process and apparatus for making the same |
US5918355A (en) * | 1994-07-25 | 1999-07-06 | Nok Corporation | Apparatus for making an accumulator |
AU716326B2 (en) * | 1995-01-12 | 2000-02-24 | Robert H. Abplanalp | Flexible barrier member useful in aerosol dispensers |
WO1996021605A1 (en) * | 1995-01-12 | 1996-07-18 | Abplanalp Robert H | Flexible barrier member useful in aerosol dispensers |
US6460571B1 (en) | 2001-03-13 | 2002-10-08 | Parker-Hannifin Corporation | Crimped piston/membrane accumulator |
JP2006516706A (en) * | 2003-02-01 | 2006-07-06 | ハイダック テクノロジー ゲゼルシャフト ミット ベシュレンクテル ハフツング | Manufacturing method of piston type accumulator |
US20080189925A1 (en) * | 2005-08-23 | 2008-08-14 | Taho Valves Corporation | Method for making water buffer device |
GB2431965A (en) * | 2005-11-01 | 2007-05-09 | Aker Kvaerner Subsea Ltd | Toroidal hydraulic accumulator for subsea control module |
GB2431965B (en) * | 2005-11-01 | 2008-07-23 | Aker Kvaerner Subsea Ltd | Subsea modules including hydraulic accumulators |
US11131330B1 (en) * | 2020-03-30 | 2021-09-28 | Caterpillar Inc. | Crimp retained hydraulic cylinder head and cap |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MERCIER ACCUMULATOR CORPORATION 306 SOUTH STATE ST Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:MERCIER, JACQUES H.;REEL/FRAME:004049/0793 Effective date: 19811217 |
|
AS | Assignment |
Owner name: AMERICAN OLAER, INC. Free format text: CHANGE OF NAME;ASSIGNOR:MERCIER ACCUMULATOR CORPORATION;REEL/FRAME:004142/0564 Effective date: 19820611 Owner name: AMERICAN OLAER, INC., NEW YORK Free format text: CHANGE OF NAME;ASSIGNOR:MERCIER ACCUMULATOR CORPORATION;REEL/FRAME:004142/0564 Effective date: 19820611 |
|
AS | Assignment |
Owner name: MERCIER, JACQUES H., 180 GLENBROOK ROAD, STAMFORD, Free format text: ASSIGNMENT OF A PART OF ASSIGNORS INTEREST;ASSIGNOR:AMERICAN OLAER, INC.;REEL/FRAME:004196/0663 Effective date: 19830429 |