US3762245A - Quick release and speeder for socket wrench - Google Patents
Quick release and speeder for socket wrench Download PDFInfo
- Publication number
- US3762245A US3762245A US00132289A US3762245DA US3762245A US 3762245 A US3762245 A US 3762245A US 00132289 A US00132289 A US 00132289A US 3762245D A US3762245D A US 3762245DA US 3762245 A US3762245 A US 3762245A
- Authority
- US
- United States
- Prior art keywords
- detent
- passageway
- socket
- detent member
- pin
- 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
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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
- B25B13/00—Spanners; Wrenches
- B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
- B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/0007—Connections or joints between tool parts
- B25B23/0035—Connection means between socket or screwdriver bit and tool
Definitions
- ABSTRACT as a driving member with a detent member projecting therefrom which may be retracted to quickly release the socket.
- Longitudinally disposed in the driving member for sliding movement is an elongated pin having one face which cooperates with an elongated portion of the detent to limit projection of the detent from the drive member
- the detent is positively forced into the retracted position by a portion of the elongated pin.
- an eccentrically mounted pin rotates to position the detent between projecting and withdrawing positions.
- a generally planar speeder attachment -releasably engages the driving member to facilitate rapid turning of the socket when only a low torque is required.
- Socket wrenches are widely used where it is desired to drive a large number of sizes of fastening devices.
- One problem associated therewith has been removal of the sockets which have usually been restrained by a ball detent assembly. Some attempts have been made to devise quick release mechanisms to facilitate the socket removal, but in general such devices have been expensive to manufacture, vulnerable to jamming from dirt which passes into the assembly and completely inoperative once jammed.
- forceably removing or installing a socket may damage the detent assembly.
- Some such structures have required a coining operation to swage the metal required to hold the detent from passing out of the driving stud.
- a socket wrench assembly includes a handle which has a head portion carrying an elongated driving stud for driving engagement.
- the stud has an extended portion extending from one side of the head having a plurality of generally planar walls and a longitudinal passage extends therethrough and a transverse aperture through the extended portion which is in communication with the longitudinal passage and one of the generally planar walls.
- a detent member is slidably carried in the transverse aperture and has an exterior end normally projecting out of the aperture and an interior end disposed within the aperture.
- An elongated pin is slidably carried in the longitudinal passage and interferes with the detent member in one longitudinal position to limit sliding movement thereof out of the transverse aperture.
- the detent is elongated, the longitudinal passage extends through the driving stud to the face thereof opposite the extended portion and the portion of the elongated pin engaging the detent member is oblique with respect to the axis of the longitudinal passage.
- the elongated pin is axially biased for engagement of a portion thereof with the detent to limit sliding movement of the detent out of the transverse aperture. Longitudinal displacement of the elongated pin forces the detent to the withdrawn position.
- a push button is carried by the elongated pin at the end distal the extended portion of the driving stud and the push button has a face perpendicular to the axis of the elongated pin so that the pin may be longitudinally displaced with a minimum of pressure. This displacement retracts the detent by coaction.
- the invention includes a removable speeder attachment having a generally planar circular member which engages the extended portion of the elongated driving stud for releasable driving engagement.
- an eccentrically mounted pin limits the travel of the detent.
- Still another object is to provide such a socket wrench wherein the socket may be manually removed even if jamming of the quick release mechanism does occur.
- Yet another object is to provide a structure which is inexpensive to produce with a minimum number of machining operations and particularly a minimum number of milling operations.
- FIG. 1 is a perspective view, to a reduced scale, of a ratchet type spcket wrench and section of a socket in exploded relation which embody the present invention
- FIG. 2 is a fragmentary simplified sectional view of the head portion of the wrench shown in the FIG. 1 with portions'of the ratcheting mechanism eliminated;
- FIG. 3 is a plan view of the removable speeder attachment
- FIG. 4 is a fragmentary simplified sectional view of another embodiment of the invention which also includes a pin to hold a central subassembly together;
- FIG. 5 is a fragmentary simplified sectional view of an embodiment similar to that shown in FIG. 4 but excluding the pin which holds a subassembly together;
- FIG. 6 is a fragmentary simplified sectional view of another embodiment having a pinned subassembly
- FIG. 7 is a fragmentary view of still another embodiment showing only the elongated pin, the detent, a single spring and a portion of the driving stud;
- FIG. 8 is a fragmentary view showing an alternative method of engagement of the elongated pin and detent member in the embodiment shown in FIG. 7;
- FIG. 9 is a fragmentary simplified sectional view of still another embodiment which does not require spring bias on the detent.
- FIG. 10 is a simplified view of another embodiment which shows the relationship between aneccentrically mounted elongated rod and a detent
- FIG. 11 is a sectional view taken at the line 8 8 of FIG. 7.
- FIG. 1 a socket wrench of the ratchet type having a handle 10, a head 12, and a driving stud 14.
- the stud 14 in the preferred embodiment is square and is provided with a detent 16 projecting from one generally planar face.
- the stud is adapted to engage an aperture 4 of socket 5.
- Recess 6 in aperture 4 engages the detent 16 for positive engagement therebetween.
- the position of the detent 16 is controlled by A preferred embodiment is shown in FIG. 2 wherein Y the relationship between head 12 driving stud 14, detent 16, push button 18, shift plate 20 and speeder attachment 22 is more clearly shown.
- Push button 18 is secured by pin 24 to upstanding annular rib 14A of stud 14 to prevent torsional motion therebetween. Pin 24 passes through vertical slots (not shown) in push button 18 and relative motion therebetween is possible.
- the driving stud 14 is also provided with a blind longitudinal passage 15 and a transverse aperture or passagement 17 in communication with the longitudinal passage and one face of the stud 14. Manual depression of push button 18 axially moves elongated pin 26 with respect to driving stud 14.
- the elongated pin 26 is preferably general cylindrical in shape.
- a shoulder 28 thereof engages a coil spring 30. Coil spring 30 is carried at its opposite end by driving stud 14 resulting in an upward position bias for elongated pin 26 and push button 18.
- the end portion 32 of elongated pin 26 is generally shaped like an inverted truncated cone and is joined to the remainder of elongated pin 26 by a stepped-down portion 34.
- the upwardly biased elongated pin 26 bears against a through passage 36 in elongated detent 16. Accordingly the detent 16 is forced outwardly to the position shown wherein the detent prevents a socket from falling off the driving stud 14.
- Certain mechanism normally included in the head assembly to accomplish the ratcheting action has been omitted to simplify the drawing.
- Speeder attachment 22 engages two flat faces of driving stud 14 for driving engagements therebetween.
- upstanding annular portion 38 carries fingers 39 which engage a cooperatively shaped and dimensioned circumferential groove 42 on driving stud 14.
- push button 18 is depressed thereby moving elongated pin 26 to align stepped-down portion 34 thereof with detent 16.
- Forces imposed on the detent by a socket engaging the depending driving stud 14 causes the detent 16 to withdraw into the transverse aperture 17.
- FIG. 3 the speeder attachment in FIG. 2 is shown in great detail.
- Parallel straight internal surfaces 24, 24 are provided for driving engagement between the speeder attachment 22 and the driving stud l4.
- fingers 39 Disposed between the straight internal surfaces 24, 24 on the internal surface are fingers 39 which engage the circumferential groove of the driving stud 14.
- the periphery of the attachment is knurled for easy manual operation of the attachment. In operation a mechanic will clasp the head of the ratchet and manipulate the periphery of the speeder attachment in the direction in which the ratcheting mechanism allows easy movement. The facile manipulation in this manner allows speedy drive of fastening attachments when only minor torque is required. This feature is particularly significant where only limited room is available for movement of the handle 10.
- FIG. 4 Another embodiment illustrated in FIG. 4 includes basically the same head 12, driving stud l4, shift plate 20, coil spring 30, and snap ring 46.
- a single elongated pin 26A is provided to simplify the construction.
- the elongated pin is engaged by a transversely disposed pin 24 similarly to the manner shown in the embodiment of FIG. 2.
- the elongated pin is provided with a vertical slot (not shown) and therefore relative axial motion is possible between annular rib 14A and elongated pin 24.
- Pin 24 serves to hold together an entire subassembly comprising of push button 18, elongated pin 26, driving stud 14, and certain portions of the shift mechanism which are not essential to this invention to simplify both assembly and repair.
- the subassembly together with shift plate 20 is held within bore 44 of head 12 by snap ring 46.
- the spring 30 reacts between the driving stud l4 and a shoulder 28 of elongated pin 26A to provide an upward bias as before.
- the lower extremity of elongated pin 26A is provided with a conical tip 50 which cooperates with a recess 52 in detent 16A.
- a spring 54 which preferably is a coil spring of the tapered type and most preferably a barrel spring to provide a maximum number of coils for a minimum height. Minimum height is important because of the major effect on strength of reducing the stud wall thickness.
- transversely disposed pin 24 is omitted to reduce the number and complexity of parts.
- the elongated pin 26B is provided with a shoulder 56 which engages the shift plate 20 to limit its maximum upward travel.
- FIG. 6 Yet another embodiment is shown in FIG. 6 wherein the elongated pin 26C is restrained by a transversely disposed pin 24 as before and biased by a spring 30 also as before but is provided with a face 58 obliquely disposed with respect to its longitudinal axis.
- the face 58 cooperates with an internal face 59 of detent 16C.
- depression of the elongated pin 26C forces detent 16C into the transverse aperture 17 against a force provided by a coil spring 54.
- the maximum outward position of detent 16C is limited by the face 58 of elongated pin 26C.
- the maximum upward travel of elongated pin 26C is limited by pin 24 in slot 60 therein which is shown in this particular view.
- Pin 24 is fixedly secured by aligned aperturesin upstanding annular rib 14C of stud 14.
- the internal face 59 may be provided either in an aperture 62 as illustrated in FIG. 6, a milled slot 64 as illustrated in FIG. 7, or a shoulder 66 as illustrated in FIG. 8.
- Cooperatively shaped elongated pins 26D and 26E are shown respectively in FIGS. '1 and 8 to accommodate the reaction surfaces of the detents 16D and 16E.
- FIG. 9 The embodiment shown in FIG. 9 is similar except with respect to the shape of the elongated pin 26F wherein it is of one-piece construction having an enlarged integral button 64 for ease of operation, a cylindrical end portion 68 and a recess 70.
- Detent 16F is provided with a cylindrical bore 72 for engagement with the cylindrical end portion 68 of elongated pin 26F in the static condition. Depressing elongated pin 26F aligns recess 70 with a cylindrical bore 72 of detent 16F whereby it may easily withdraw into transverse aperture 17.
- elongated pin 266 is mounted within driving stud 14 for torsional movement therebetween and has a depending eccentricially mounted portion 74.
- a torsion spring 76 angularly biases the elongated pin 266 to a position wherein eccentricially mounted portion 74 cams detent 16G to its outermost position.
- a shoulder 78 limits the outward travel of detent 166 by cooperation with a counterbore 80 of a transverse aperture 17.
- the separate push button and speeder attachments may be most preferably molded of a hard synthetic plastic injection moldable material such as thermoplastic linear polyamide.
- a male drive engaging a female aperture in a socket the invention may also be used in an inverted structure.
- the invention may also be practiced with screwdrivers having removable blades as well as with socket wrenches.
- another embodiment has an elongated pin with a helical groove therein engaging the driving stud whereby torsional force applied to the elongated pin produces a longitudinal displacement of the elongated pin to control the detent position.
- the mounting of the elongated pin may be contained by the ratcheting mechanism by means of a key-hole slot engaging a shoulder on the pin to prevent upward movement.
- This structure simplifies assembly and reduces manufacturing cost. While the driving stud is ordinarily square it is possible that the stud even be round and the driving torque be transferred by the detent to the socket.
- the present invention provides a novel socket wrench with quick release and speeder attachment features which permits facile disengagement of the detent mechanism from the socket used therewith and which limits outward motion of the detent as well as positively retracting the detent.
- the detent may slide inwardly in the transverse aperture even if the elongated pin should be jammed due to a malfunction or because of foreign matter injested by the mechanism.
- the mechanism produced in accordance with the invention is inexpensive to produce and particularly the embodiment illustrated in FIG. 2 may be manufactured without the necessity for milling operation since its shape allows manufacture with only simple turning operations.
- a socket wrench assembly for use with an associated socket having walls forming an opening for driving engagement with a driving stud comprising:
- a handle having a head portion
- An enlongated driving stud carried by said head portion for rotational driving engagement, said stud having an extended portion extending from a side surface of said head and having a plurality of planar walls cooperatively configured and dimensioned for driving engagement with the associated socket, and having a longitudinal passage through said extended portion and a transverse passageway in said extended portion communicating with said longitudinal passage and one of said planar walls;
- a detent member slidably carried in said transverse passageway having an exterior end projecting out of said transverse passageway and an interior end disposed within said transverse passageway said detent member when projecting out of said passageway extending above said one planar wall, said detent member having a camming surface thereon;
- An elongated pin slidably carried in said longitudinal passage and extending into said transverse passageway, said pin having a surface portion engaging said camming surface on said detent member and urging said detent member to a first position with said exterior end completely within said passageway when said pin is displaced axially;
- Spring bias means biasing said detent member toward a second position with said exterior end thereof out of said transverse passageway, said spring bias means, detent member, and elongated pin permitting movement of said detent inwardly whenever said detent member is in said first position.
- a socket wrench as set forth in claim 4 wherein a push button is carried by said elongated pin at the end distal said extended portion of said driving stud, said push button having a face perpendicular to the axis of said elongated pin whereby said elongated pin may be easily longitudinally displaced.
- a socket wrench assembly for use with an associated socket having walls forming an opening for driving engagement with a driving stud comprising:
- a handle having a head portion
- An elongated driving stud carried by said head portion for driving engagement, said stud having an extended portion extending from a side surface of said head and having a plurality of planar walls cooperatively configured and dimensioned for driving engagement with the associated socket a longitudinal passage through said extended portion and a transverse passageway in said extended portion communicating with said longitudinal passage and 10.
- a socket wrench assembly for use with sockets having an opening for reception of a socket driving 5 stud,
- a handle having a head portion
- a driving stud connected to and having a socket engaging portion extending from said head
- said detent when pro ect- 5 rd 1 detent means SI ab y mounted wt in said second "L out Said f passageway extendmg passageway and movable from a normal detenting a out sai one p anar wa v osition whereat an end of said detent means ex- An elongated Pm hdably earned m Smd .1ongltudl fend beyond said surface to a retracted position nal passage sad pm having a button Pomo'n at one said detent means includin a camrnin surface end thereof and a surface portion engaging said h g g camming surface on said detent member and posit f I tively forcing said detent member toward the inte means mcludmg means m rior of said transverse passageway upon longitudifi passflgwax posmo'fmg
- a socket wrench assembly as set forth in claim 8 said operator controlled means including a terminal wherein said detent member is spring biased to urge portion extending into said second passageway and said exterior end thereof out of said transverse passageengaging said detent means.
- said elongated pin in one position thereof en- 2 3 53 UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent No. 3,762,245 Dated October 2, 1973 In n William H. Smvers, Jr. and Ronald D. Russo It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:
Abstract
Description
Claims (10)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13228971A | 1971-04-08 | 1971-04-08 |
Publications (1)
Publication Number | Publication Date |
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US3762245A true US3762245A (en) | 1973-10-02 |
Family
ID=22453325
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US00132289A Expired - Lifetime US3762245A (en) | 1971-04-08 | 1971-04-08 | Quick release and speeder for socket wrench |
Country Status (1)
Country | Link |
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US (1) | US3762245A (en) |
Cited By (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3945274A (en) * | 1975-08-13 | 1976-03-23 | Annett Ii Charles E | Speed wrench |
US4187747A (en) * | 1978-02-21 | 1980-02-12 | Litton Industrial Products, Inc. | Quick release mechanism for socket wrench |
US4245528A (en) * | 1979-05-29 | 1981-01-20 | Ingersoll-Rand Company | Push button socket release mechanism |
US4292863A (en) * | 1980-02-08 | 1981-10-06 | Hickman Jack L | Automatic socket ejector |
US4339970A (en) * | 1980-10-10 | 1982-07-20 | Enstrom Rudolph J | Serviceable releasable socket retaining ratchet |
WO1982004215A1 (en) * | 1981-06-05 | 1982-12-09 | Peter M Roberts | Quick-release and positive locking mechanism for use on socket wrenches and on power and impact tools |
US4508005A (en) * | 1983-12-19 | 1985-04-02 | Snap-On Tools Corporation | Quick release mechanism for ratchet wrench |
US4794828A (en) * | 1983-12-19 | 1989-01-03 | Snap-On Tools Corporation | Quick release mechanism for ratchet wrench |
US5028181A (en) * | 1990-05-14 | 1991-07-02 | Grumman Aerospace Corporation | Quick change right angle and offset drill head |
US5184979A (en) * | 1985-02-22 | 1993-02-09 | Gkn Automotive, Inc. | Quick disconnect constant velocity universal joint |
EP0884137A2 (en) * | 1997-06-11 | 1998-12-16 | Intercable Srl | Connection piece for releasable connection in a tool |
US6067881A (en) * | 1995-06-07 | 2000-05-30 | Albertson; David V. | Hand tool |
US6138531A (en) * | 1998-02-23 | 2000-10-31 | Lamons; Dan E. | Hand ratchet wrench |
US6276239B1 (en) | 1995-06-07 | 2001-08-21 | David V. Albertson | Hand tool |
US20030033912A1 (en) * | 2001-05-02 | 2003-02-20 | Coffland Donald W. | Torque tool socket release method and apparatus |
US20050229739A1 (en) * | 2004-03-30 | 2005-10-20 | Steiner Donald J | Grab-activated self-locking winch handle |
US20070212195A1 (en) * | 2004-04-21 | 2007-09-13 | Reinhard Smetz | Lifting Bolt Comprising Safety Element |
US20090133538A1 (en) * | 2007-11-26 | 2009-05-28 | Cheng Chang Tsai | Quick release mechanism for socket wrench |
US20100147117A1 (en) * | 2008-12-16 | 2010-06-17 | Chih-Ching Hsieh | Connection device for latching and releasing a socket |
CN106737341A (en) * | 2016-09-30 | 2017-05-31 | 南通天茂机械制造有限公司 | A kind of Zheng Kong counter steers mechanism |
US9757847B2 (en) | 2015-04-24 | 2017-09-12 | Ty-Flot, Inc. | Ratchet wrench with a locking release assembly |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB757828A (en) * | 1954-04-30 | 1956-09-26 | Aviat Developments Ltd | Improvements in or relating to quick action coupling or engaging devices |
US3145441A (en) * | 1962-04-09 | 1964-08-25 | Boeing Co | Quick release locking element pin |
US3208318A (en) * | 1964-04-24 | 1965-09-28 | Peter M Roberts | Quick release for socket wrenches |
US3474506A (en) * | 1967-05-12 | 1969-10-28 | Norco Inc | Quick release pin |
US3532013A (en) * | 1968-05-01 | 1970-10-06 | Moore Drop Forging Co Inc | Quick release mechanism for fine tooth ratchet wrenches |
US3561516A (en) * | 1967-02-28 | 1971-02-09 | Robert R Reddy | Safety bolt |
-
1971
- 1971-04-08 US US00132289A patent/US3762245A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB757828A (en) * | 1954-04-30 | 1956-09-26 | Aviat Developments Ltd | Improvements in or relating to quick action coupling or engaging devices |
US3145441A (en) * | 1962-04-09 | 1964-08-25 | Boeing Co | Quick release locking element pin |
US3208318A (en) * | 1964-04-24 | 1965-09-28 | Peter M Roberts | Quick release for socket wrenches |
US3561516A (en) * | 1967-02-28 | 1971-02-09 | Robert R Reddy | Safety bolt |
US3474506A (en) * | 1967-05-12 | 1969-10-28 | Norco Inc | Quick release pin |
US3532013A (en) * | 1968-05-01 | 1970-10-06 | Moore Drop Forging Co Inc | Quick release mechanism for fine tooth ratchet wrenches |
Cited By (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3945274A (en) * | 1975-08-13 | 1976-03-23 | Annett Ii Charles E | Speed wrench |
US4187747A (en) * | 1978-02-21 | 1980-02-12 | Litton Industrial Products, Inc. | Quick release mechanism for socket wrench |
US4245528A (en) * | 1979-05-29 | 1981-01-20 | Ingersoll-Rand Company | Push button socket release mechanism |
US4292863A (en) * | 1980-02-08 | 1981-10-06 | Hickman Jack L | Automatic socket ejector |
US4339970A (en) * | 1980-10-10 | 1982-07-20 | Enstrom Rudolph J | Serviceable releasable socket retaining ratchet |
WO1982004215A1 (en) * | 1981-06-05 | 1982-12-09 | Peter M Roberts | Quick-release and positive locking mechanism for use on socket wrenches and on power and impact tools |
US4508005A (en) * | 1983-12-19 | 1985-04-02 | Snap-On Tools Corporation | Quick release mechanism for ratchet wrench |
US4794828A (en) * | 1983-12-19 | 1989-01-03 | Snap-On Tools Corporation | Quick release mechanism for ratchet wrench |
US5184979A (en) * | 1985-02-22 | 1993-02-09 | Gkn Automotive, Inc. | Quick disconnect constant velocity universal joint |
US5028181A (en) * | 1990-05-14 | 1991-07-02 | Grumman Aerospace Corporation | Quick change right angle and offset drill head |
US6276239B1 (en) | 1995-06-07 | 2001-08-21 | David V. Albertson | Hand tool |
US6067881A (en) * | 1995-06-07 | 2000-05-30 | Albertson; David V. | Hand tool |
US6516688B2 (en) | 1995-06-07 | 2003-02-11 | David V. Albertson | Hand tool |
EP0884137A3 (en) * | 1997-06-11 | 2001-05-09 | Intercable Srl | Connection piece for releasable connection in a tool |
EP0884137A2 (en) * | 1997-06-11 | 1998-12-16 | Intercable Srl | Connection piece for releasable connection in a tool |
US6138531A (en) * | 1998-02-23 | 2000-10-31 | Lamons; Dan E. | Hand ratchet wrench |
US20030033912A1 (en) * | 2001-05-02 | 2003-02-20 | Coffland Donald W. | Torque tool socket release method and apparatus |
EP2343158A1 (en) * | 2004-03-30 | 2011-07-13 | Donald J. Steiner | Self-locking winch handle |
US7114705B2 (en) | 2004-03-30 | 2006-10-03 | Steiner Donald J | Grab-activated self-locking winch handle |
US20050229739A1 (en) * | 2004-03-30 | 2005-10-20 | Steiner Donald J | Grab-activated self-locking winch handle |
US20070212195A1 (en) * | 2004-04-21 | 2007-09-13 | Reinhard Smetz | Lifting Bolt Comprising Safety Element |
US20090133538A1 (en) * | 2007-11-26 | 2009-05-28 | Cheng Chang Tsai | Quick release mechanism for socket wrench |
US7584686B2 (en) | 2007-11-26 | 2009-09-08 | Cheng Chang Tsai | Quick release mechanism for socket wrench |
US20100147117A1 (en) * | 2008-12-16 | 2010-06-17 | Chih-Ching Hsieh | Connection device for latching and releasing a socket |
US9757847B2 (en) | 2015-04-24 | 2017-09-12 | Ty-Flot, Inc. | Ratchet wrench with a locking release assembly |
EP3285964A4 (en) * | 2015-04-24 | 2018-12-19 | Ty-Flot Inc. | Ratchet wrench with a locking release assembly |
CN106737341A (en) * | 2016-09-30 | 2017-05-31 | 南通天茂机械制造有限公司 | A kind of Zheng Kong counter steers mechanism |
CN106737341B (en) * | 2016-09-30 | 2018-08-21 | 南通天茂机械制造有限公司 | A kind of Zheng Kong counter steers mechanism |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: STANLEY WORKS, THE, 1000 STANLEY DR., NEW BRITAIN, Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:NATIONAL HAND TOOL CORPORATION A CORP. OF TX;REEL/FRAME:004721/0380 Effective date: 19861230 |
|
AS | Assignment |
Owner name: NATIONAL HAND TOOL CORPORATION, A CORP. OF DE,TEX Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:STANLEY WORKS, THE;REEL/FRAME:004840/0070 Effective date: 19870527 Owner name: NATIONAL HAND TOOL CORPORATION, 12827 VALLEY BRANC Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:STANLEY WORKS, THE;REEL/FRAME:004840/0070 Effective date: 19870527 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED FILE - (OLD CASE ADDED FOR FILE TRACKING PURPOSES) |