US512381A - James t - Google Patents
James t Download PDFInfo
- Publication number
- US512381A US512381A US512381DA US512381A US 512381 A US512381 A US 512381A US 512381D A US512381D A US 512381DA US 512381 A US512381 A US 512381A
- Authority
- US
- United States
- Prior art keywords
- core
- stock
- objects
- tool
- magnetic
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 32
- 229910052742 iron Inorganic materials 0.000 description 16
- 210000002832 Shoulder Anatomy 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 4
- 238000009740 moulding (composite fabrication) Methods 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/002—Magnetic work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/28—Magnetic plugs and dipsticks
- B03C1/284—Magnetic plugs and dipsticks with associated cleaning means, e.g. retractable non-magnetic sleeve
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0231—Magnetic circuits with PM for power or force generation
- H01F7/0252—PM holding devices
- H01F7/0257—Lifting, pick-up magnetic objects
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/04—Means for releasing the attractive force
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S29/00—Metal working
- Y10S29/105—Assembly, magnetic, or indicia tool
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S7/00—Compound tools
- Y10S7/901—Magnetic feature
-
- 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
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53104—Roller or ball bearing
-
- 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
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53478—Means to assemble or disassemble with magazine supply
- Y10T29/53483—Means to assemble or disassemble with magazine supply and magnetic work-holder or positioner
-
- 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
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53909—Means comprising hand manipulatable tool
- Y10T29/53943—Hand gripper for direct push or pull
Description
Patented Jan. 9, 1894.4
J.T.KEYBS. TOOL FOB HANDLING SMALL METALLIC ARTICLES. No. 512,381.4
(No lodel.)
INVENTR= /wzm WITNESSE'E f UNITED STATES PATENT OFFICE.
JAMES T. KEYES, OF NEW YORK, N. Y.
TOOL FOR HANDLING SN'IALL METALLIC ARTICLES.
SPECIFICATION forming part of Letters Patent No. 512,381, dated January 9, 18914.
I Application led April 12,1893. Serial No. 470,088. (No model.)
To all whom it may eor'wern:4
Be itknown that I, JAMES T. KEY-ES, a citif New York, have invented new and useful Improvements in Tools for Handling Small Steel and Iron Articles, of which the following is a specification.y
The object of my invention is more particularly to provide a tool for picking up and handling small spherical objects as the steel balls of bicycle wheel ball bearings which are very difficult to handle by the fingers, but which tool will also be very useful for handling various other small objects of steel and iron, and it consists essentially of a magnetized bar or core adapted for picking up and holdin-g said articles by attraction, and a nonmaguetic discharger for detaching the articles when they are to be released, all as hereinafter fully described reference being made to the accompanying drawings in which- Figures l and 2, are sectional elevations of one form of my improved tool, Fig. l shewing the conditions for picking up and holding the bail, and Fig. showing the position' for releasing the ball. Figs. 3 and l, are sectional elevations of another form'of the said tool, Fig, 3, showing the conditions for holding the ball, and Fig. l showing the conditions for releasing it. Figs. 5 and 6 are like views of an-other form of. the tool and showing the different positions. Fig. 7, is a side elevation of the form of the tool represented in Figs. 5 and G, and Figs. S and 0, are sectional elevations of another form, Fig. S showing the conditions for holding the ball, and Fig. 9 the conditions for releasing it.
However the tool is constructed the essential features of it are a magnetic bar or core for lifting the objects by attraction, and a non-magnetic discharger for detaching them which are readily movable relatively to each other to permit the magnet to be presented in suitable proximity to the articles for taking them up by attraction, and for removing the articles out of the field of magnetic attraction for releasing them. In Figs. 1 and 2,(trepresents a magnetized 5o core of the tool having a central longitudinal bore I), and vbeing inclosed in a tubular stock or handle c, of non-magnetic substance having a head d, at one end znd being closed with a non-magnetic plug e, at the other end to secure the core; f, is a piece of soft iron tted to slide in and out of a socket g, in the plugged end of the stock; h, is a rod extending up through the core a, and the head of the stock and havinga head i, above by which to pull the piece of soft iron inward of the socket, andy' is a coiled spring applied to the rod h, between the shoulder k thereof, and a shoulder Z, of the head of the stock suitable for projecting the soft iron piece f, outward of the socket. of the tool the soft iron piece is drawn upward into the socket as in Fig. l through lift- In the operation of this form ing it by the head ot' rod 7L, in which position it is temporarily magnetized by the magnetic core a, and will pick up small steel or iron objects as balls m, and hold them fornse, and when the head t', is released and the rod let go the soft iron piece f, being projected by the spring outward from the socket g beyond the magnetic inlluence of .the core @,Will release and eiiect the discharge of the objects holding it.
ln Figs. and the magnetic core Ct is an ranged to slide in the stock c so that the end- I oruse in picking up the objects maybelush with the end of the stock for taking eiect, as in Fig. 3, and may be withdrawn .a suitable distance within the end ot' the stock as in Fig. 4 for releasing the balls. rlhe lifting head 't' and the spring j are in this case applied to the magnetic core, said core having the shoulders 7c for the spring, the other shoulder for said spring being on the head d of the stock same as in Figs. l and 2. The other end of the stock and the corresponding end of the core are tapered a little to limit the outward thrust ofthe core by the spring,but any other approved means of effecting such limitation may be employed. In this form of the tool the core is pressed downward bythe spring to the position for effective use as in Fig. 3, and it is lifted up by the head as in Fig. 4, for the release of -thepobjects being handled, by withdrawal of the end so far within the case that the objects, prevented from following it by the end of the stock, will be relieved of the magnetic influence.
made fast to the stock c, by the studs n, with an intermediate sliding tube o, having slots p, for the studs and containing aspringj' above theA upper end of the core 'tending to shift it upward, also having the upper end q extending above the stock a suitable distance to serve for pressing the tube downward by the finger, and also having the lower end in snitable rela'tion to the operative end of the mag-l v net for allowing it to take effect when raised by the spring on the objects to* be handled, and for discharging them when pressed down.
In Figs. 8 and 9, the stock c', core a and sprin g j, are substantially the same as in Figs. 3 and 4, with a stud s, projecting through a slot t, in the side of the stock for raising the magnet for discharging the objects held by it.
It is manifest that besides these various forms of the tool other equivalent forms may be made.
I claim- 1. The combination of the magneticbar or core and the non-magnetic discharger movable relatively to each other for permitting the core to be presented to the objects to be vmanned, ne for demhingsaid objects by the dscharger snbstantiallyas described.
' 2. The combination of the magnetic bar or core, the non-magnetic dscharger and a stock 3o or handle, said core and discharger movable relatively to each other for presenting the core to the objects to be handled,y and for detaching said objects by the discbarger substantially as described.
3'. The combination of the magnetic bar or core, the nommagnetic discharger movable relativelyv to 'each other for presenting the core to the objects to be handled, and-for detaching the said objects by the discharger, a spring for effecting the movement in one direction and a push-piece for ee'cting reverse movement substantially as described.
In testimony that I claim the foregoing as my invention I have signed my name, in presence of two witnesses, this 8th day of April,
JAMES 'F.KEYES. Witnessesz W. J. MORGAN, C. E. WHITNEY.
Publications (1)
Publication Number | Publication Date |
---|---|
US512381A true US512381A (en) | 1894-01-09 |
Family
ID=2581202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US512381D Expired - Lifetime US512381A (en) | James t |
Country Status (1)
Country | Link |
---|---|
US (1) | US512381A (en) |
Cited By (60)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2417762A (en) * | 1944-04-14 | 1947-03-18 | Koller Steven | Tool for magnetic lifting |
US2428864A (en) * | 1945-07-05 | 1947-10-14 | Charles R Boyd | Magnet |
US2431320A (en) * | 1944-08-02 | 1947-11-25 | Standard Knapp Corp | Tray unloader |
US2436740A (en) * | 1943-09-21 | 1948-02-24 | Lisle Corp | Filter magnet structure |
US2471764A (en) * | 1946-01-31 | 1949-05-31 | Carl H Miller | Magnetic hand pickup tool |
US2477270A (en) * | 1945-09-18 | 1949-07-26 | Coy J Smith | Bearing replacer tool |
US2480366A (en) * | 1946-01-16 | 1949-08-30 | Ivan N Hewitt | Valve stem pushing implement |
US2508075A (en) * | 1949-09-10 | 1950-05-16 | Morris Owen | Magnetized article |
US2523351A (en) * | 1946-02-18 | 1950-09-26 | Gunnar O Bedoar | Plumb bob with magnetic point |
US2528709A (en) * | 1949-12-06 | 1950-11-07 | Raymond Engineering Lab Inc | Eraser |
US2547990A (en) * | 1945-11-21 | 1951-04-10 | Frank F Willms | Magnetic pickup |
US2580571A (en) * | 1949-06-07 | 1952-01-01 | American Viscose Corp | Doffing arrangement for spinning buckets |
US2599966A (en) * | 1950-06-02 | 1952-06-10 | Zachary Alexis | Magnetic extractor |
US2605658A (en) * | 1949-05-02 | 1952-08-05 | Marcial M Sanchez | Magnetic tool |
US2615746A (en) * | 1944-06-03 | 1952-10-28 | Emhart Mfg Co | Crate unloader |
US2624223A (en) * | 1949-11-05 | 1953-01-06 | Wade Stevenson | Magnetic driving implement |
US2630036A (en) * | 1948-09-16 | 1953-03-03 | Ray M Brown | Magnetic fastener-holding device |
US2632790A (en) * | 1949-03-03 | 1953-03-24 | Hugh A Kiler | Magnetic hairpin holder |
US2637590A (en) * | 1950-03-08 | 1953-05-05 | Standard Oil Dev Co | Well bore retrieving tool |
US2652733A (en) * | 1950-08-23 | 1953-09-22 | Carter Carburetor Corp | Ball plug setting tool |
US2656211A (en) * | 1950-11-30 | 1953-10-20 | Zachary Alexis | Magnetic instrument for lifting hairpins |
US2660468A (en) * | 1949-07-28 | 1953-11-24 | Cook Herbert | Deep well fishing tool |
US2667394A (en) * | 1950-04-01 | 1954-01-26 | Dorothy N Goetz | Dispenser for articles of magnetic material |
US2671369A (en) * | 1950-08-01 | 1954-03-09 | Wade Stevenson | Magnetic socket wrench |
US2677294A (en) * | 1950-11-25 | 1954-05-04 | Wade Stevenson | Magnetic driving implement |
US2678578A (en) * | 1951-08-30 | 1954-05-18 | Joseph L Bonanno | Magnetizable hand tool |
US2690617A (en) * | 1951-09-15 | 1954-10-05 | James B Giern | Needle holding dental tool |
US2693979A (en) * | 1950-08-03 | 1954-11-09 | George L Russell | Magnetic device |
DE929300C (en) * | 1948-10-02 | 1955-06-23 | Deutsche Edelstahlwerke Ag | Magnetic gripper |
US2723369A (en) * | 1955-06-08 | 1955-11-08 | Henry T Brummett | Wall stud locator |
US2767517A (en) * | 1953-08-18 | 1956-10-23 | R W Curry | Magnetic assembly toy |
US2790420A (en) * | 1953-01-21 | 1957-04-30 | Zelinger Henry | Magnetic pencils |
DE967514C (en) * | 1951-01-19 | 1957-11-14 | Deutsche Edelstahlwerke Ag | Permanent magnetic gripping tool |
US2828762A (en) * | 1955-06-27 | 1958-04-01 | Erie Meter Systems Inc | Pit box access cover and tool for removing same |
US2945407A (en) * | 1959-09-23 | 1960-07-19 | Emilio A Beltrani | Shielded wire dielectric ejector |
DE974187C (en) * | 1950-06-30 | 1960-10-13 | Max Baermann | Device for sorting or transporting magnetic materials |
US2970002A (en) * | 1959-01-20 | 1961-01-31 | Laviano Samuel | Magnetic pickup |
US2997918A (en) * | 1959-08-20 | 1961-08-29 | Leonard I Spear | Contact lens holder |
US3042030A (en) * | 1958-11-25 | 1962-07-03 | Read Thane | Spherical type insert plug for body passageway and tool therefor |
US3080078A (en) * | 1958-03-03 | 1963-03-05 | American Can Co | Method of and apparatus for dispensing hot foods |
US3138855A (en) * | 1959-10-22 | 1964-06-30 | Calvert D Marshall | Tool for removing keys on poppet valves |
US3257893A (en) * | 1961-05-01 | 1966-06-28 | Hirsch Abraham Adler | Self-luminous turbidity observation device for water works basins |
US3951014A (en) * | 1974-11-21 | 1976-04-20 | General Time Corporation | Magnetic reset tool |
US3975813A (en) * | 1975-11-12 | 1976-08-24 | Bell William A | Magnetic tile holder |
US4125264A (en) * | 1977-07-25 | 1978-11-14 | Theodore Reiss | Record positioning device |
US4649116A (en) * | 1983-10-27 | 1987-03-10 | Institut Pasteur | Magnetic means for withdrawing magnetic gel beads from an assay fluid |
US5169193A (en) * | 1991-12-09 | 1992-12-08 | Stelmach John J | Magnetic pickup tool |
US5265887A (en) * | 1991-12-09 | 1993-11-30 | Stelmach John J | Magnetic pickup tool |
US5471186A (en) * | 1992-10-20 | 1995-11-28 | Goldstar Electron Co., Ltd. | Magnetic pencil for moving semiconductor packages |
US6026717A (en) * | 1998-07-23 | 2000-02-22 | Anderson; Wayne | Driver tool with high energy magnetizer/demagnetizer on tool handle |
US6026718A (en) * | 1998-09-28 | 2000-02-22 | Anderson; Wayne | High energy magnetizer and selective demagnetizer integral with driver tool or the like |
US6032557A (en) * | 1998-09-01 | 2000-03-07 | Anderson; Wayne | Driver tool kit with high energy magnetizer/demagnetizer on tool handle(s) |
US6056339A (en) * | 1999-01-14 | 2000-05-02 | Berger; Leon M. | Magnetic retrieving device |
US6060801A (en) * | 1998-09-28 | 2000-05-09 | Anderson; Wayne | High energy magnetizer/demagnetizer for drill housing |
DE19842699C2 (en) * | 1998-09-18 | 2002-02-07 | Michael Splitgerber | Pocket-sized board game |
US6403038B1 (en) * | 1997-07-16 | 2002-06-11 | Klaus-Hinrich Heermann | Magnetic pin for concentrating and separating particles |
US20040176797A1 (en) * | 2003-03-04 | 2004-09-09 | Nmt Medical, Inc. | Magnetic attachment systems |
CN102380767A (en) * | 2011-09-28 | 2012-03-21 | 迈凯实金属技术(苏州)有限公司 | Pin assembling tool |
US20130057003A1 (en) * | 2011-09-01 | 2013-03-07 | Benjamin J. Watson | Magnetic lifting tool |
CN111195867A (en) * | 2018-11-16 | 2020-05-26 | 昆山联滔电子有限公司 | Magnetic pen |
-
0
- US US512381D patent/US512381A/en not_active Expired - Lifetime
Cited By (61)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2436740A (en) * | 1943-09-21 | 1948-02-24 | Lisle Corp | Filter magnet structure |
US2417762A (en) * | 1944-04-14 | 1947-03-18 | Koller Steven | Tool for magnetic lifting |
US2615746A (en) * | 1944-06-03 | 1952-10-28 | Emhart Mfg Co | Crate unloader |
US2431320A (en) * | 1944-08-02 | 1947-11-25 | Standard Knapp Corp | Tray unloader |
US2428864A (en) * | 1945-07-05 | 1947-10-14 | Charles R Boyd | Magnet |
US2477270A (en) * | 1945-09-18 | 1949-07-26 | Coy J Smith | Bearing replacer tool |
US2547990A (en) * | 1945-11-21 | 1951-04-10 | Frank F Willms | Magnetic pickup |
US2480366A (en) * | 1946-01-16 | 1949-08-30 | Ivan N Hewitt | Valve stem pushing implement |
US2471764A (en) * | 1946-01-31 | 1949-05-31 | Carl H Miller | Magnetic hand pickup tool |
US2523351A (en) * | 1946-02-18 | 1950-09-26 | Gunnar O Bedoar | Plumb bob with magnetic point |
US2630036A (en) * | 1948-09-16 | 1953-03-03 | Ray M Brown | Magnetic fastener-holding device |
DE929300C (en) * | 1948-10-02 | 1955-06-23 | Deutsche Edelstahlwerke Ag | Magnetic gripper |
US2632790A (en) * | 1949-03-03 | 1953-03-24 | Hugh A Kiler | Magnetic hairpin holder |
US2605658A (en) * | 1949-05-02 | 1952-08-05 | Marcial M Sanchez | Magnetic tool |
US2580571A (en) * | 1949-06-07 | 1952-01-01 | American Viscose Corp | Doffing arrangement for spinning buckets |
US2660468A (en) * | 1949-07-28 | 1953-11-24 | Cook Herbert | Deep well fishing tool |
US2508075A (en) * | 1949-09-10 | 1950-05-16 | Morris Owen | Magnetized article |
US2624223A (en) * | 1949-11-05 | 1953-01-06 | Wade Stevenson | Magnetic driving implement |
US2528709A (en) * | 1949-12-06 | 1950-11-07 | Raymond Engineering Lab Inc | Eraser |
US2637590A (en) * | 1950-03-08 | 1953-05-05 | Standard Oil Dev Co | Well bore retrieving tool |
US2667394A (en) * | 1950-04-01 | 1954-01-26 | Dorothy N Goetz | Dispenser for articles of magnetic material |
US2599966A (en) * | 1950-06-02 | 1952-06-10 | Zachary Alexis | Magnetic extractor |
DE974187C (en) * | 1950-06-30 | 1960-10-13 | Max Baermann | Device for sorting or transporting magnetic materials |
US2671369A (en) * | 1950-08-01 | 1954-03-09 | Wade Stevenson | Magnetic socket wrench |
US2693979A (en) * | 1950-08-03 | 1954-11-09 | George L Russell | Magnetic device |
US2652733A (en) * | 1950-08-23 | 1953-09-22 | Carter Carburetor Corp | Ball plug setting tool |
US2677294A (en) * | 1950-11-25 | 1954-05-04 | Wade Stevenson | Magnetic driving implement |
US2656211A (en) * | 1950-11-30 | 1953-10-20 | Zachary Alexis | Magnetic instrument for lifting hairpins |
DE967514C (en) * | 1951-01-19 | 1957-11-14 | Deutsche Edelstahlwerke Ag | Permanent magnetic gripping tool |
US2678578A (en) * | 1951-08-30 | 1954-05-18 | Joseph L Bonanno | Magnetizable hand tool |
US2690617A (en) * | 1951-09-15 | 1954-10-05 | James B Giern | Needle holding dental tool |
US2790420A (en) * | 1953-01-21 | 1957-04-30 | Zelinger Henry | Magnetic pencils |
US2767517A (en) * | 1953-08-18 | 1956-10-23 | R W Curry | Magnetic assembly toy |
US2723369A (en) * | 1955-06-08 | 1955-11-08 | Henry T Brummett | Wall stud locator |
US2828762A (en) * | 1955-06-27 | 1958-04-01 | Erie Meter Systems Inc | Pit box access cover and tool for removing same |
US3080078A (en) * | 1958-03-03 | 1963-03-05 | American Can Co | Method of and apparatus for dispensing hot foods |
US3042030A (en) * | 1958-11-25 | 1962-07-03 | Read Thane | Spherical type insert plug for body passageway and tool therefor |
US2970002A (en) * | 1959-01-20 | 1961-01-31 | Laviano Samuel | Magnetic pickup |
US2997918A (en) * | 1959-08-20 | 1961-08-29 | Leonard I Spear | Contact lens holder |
US2945407A (en) * | 1959-09-23 | 1960-07-19 | Emilio A Beltrani | Shielded wire dielectric ejector |
US3138855A (en) * | 1959-10-22 | 1964-06-30 | Calvert D Marshall | Tool for removing keys on poppet valves |
US3257893A (en) * | 1961-05-01 | 1966-06-28 | Hirsch Abraham Adler | Self-luminous turbidity observation device for water works basins |
US3951014A (en) * | 1974-11-21 | 1976-04-20 | General Time Corporation | Magnetic reset tool |
US3975813A (en) * | 1975-11-12 | 1976-08-24 | Bell William A | Magnetic tile holder |
US4125264A (en) * | 1977-07-25 | 1978-11-14 | Theodore Reiss | Record positioning device |
US4649116A (en) * | 1983-10-27 | 1987-03-10 | Institut Pasteur | Magnetic means for withdrawing magnetic gel beads from an assay fluid |
US5265887A (en) * | 1991-12-09 | 1993-11-30 | Stelmach John J | Magnetic pickup tool |
US5169193A (en) * | 1991-12-09 | 1992-12-08 | Stelmach John J | Magnetic pickup tool |
US5471186A (en) * | 1992-10-20 | 1995-11-28 | Goldstar Electron Co., Ltd. | Magnetic pencil for moving semiconductor packages |
US6403038B1 (en) * | 1997-07-16 | 2002-06-11 | Klaus-Hinrich Heermann | Magnetic pin for concentrating and separating particles |
US6026717A (en) * | 1998-07-23 | 2000-02-22 | Anderson; Wayne | Driver tool with high energy magnetizer/demagnetizer on tool handle |
US6032557A (en) * | 1998-09-01 | 2000-03-07 | Anderson; Wayne | Driver tool kit with high energy magnetizer/demagnetizer on tool handle(s) |
DE19842699C2 (en) * | 1998-09-18 | 2002-02-07 | Michael Splitgerber | Pocket-sized board game |
US6060801A (en) * | 1998-09-28 | 2000-05-09 | Anderson; Wayne | High energy magnetizer/demagnetizer for drill housing |
US6026718A (en) * | 1998-09-28 | 2000-02-22 | Anderson; Wayne | High energy magnetizer and selective demagnetizer integral with driver tool or the like |
US6056339A (en) * | 1999-01-14 | 2000-05-02 | Berger; Leon M. | Magnetic retrieving device |
US20040176797A1 (en) * | 2003-03-04 | 2004-09-09 | Nmt Medical, Inc. | Magnetic attachment systems |
US7618435B2 (en) * | 2003-03-04 | 2009-11-17 | Nmt Medical, Inc. | Magnetic attachment systems |
US20130057003A1 (en) * | 2011-09-01 | 2013-03-07 | Benjamin J. Watson | Magnetic lifting tool |
CN102380767A (en) * | 2011-09-28 | 2012-03-21 | 迈凯实金属技术(苏州)有限公司 | Pin assembling tool |
CN111195867A (en) * | 2018-11-16 | 2020-05-26 | 昆山联滔电子有限公司 | Magnetic pen |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US512381A (en) | James t | |
US2471764A (en) | Magnetic hand pickup tool | |
US700412A (en) | Clutch. | |
US2547990A (en) | Magnetic pickup | |
US437647A (en) | Rhodolph h | |
US1709240A (en) | Nail puller | |
US733126A (en) | Tool-holder. | |
US239403A (en) | Feedeeick m | |
US1295785A (en) | Punch. | |
US374743A (en) | jones | |
US889474A (en) | Cork-extractor. | |
US736964A (en) | Cannon-pinion remover. | |
US1109942A (en) | Watchmaker's tool. | |
US686137A (en) | Solenoid graduating-tube. | |
US741816A (en) | Fire-tongs. | |
US482232A (en) | Watchmaker s tweezers | |
US697120A (en) | Jeweler's tool. | |
US1416543A (en) | Landing net | |
US307410A (en) | powee | |
US510467A (en) | Magnetic nail-driver | |
US376196A (en) | Joseph hoffman | |
US444148A (en) | Lead or crayon holder | |
US1026509A (en) | Toll for extracting well-points. | |
US875078A (en) | Goods-handler. | |
US587677A (en) | Bit-tongs |