US3858468A - Clamping tool - Google Patents

Clamping tool Download PDF

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Publication number
US3858468A
US3858468A US328918A US32891873A US3858468A US 3858468 A US3858468 A US 3858468A US 328918 A US328918 A US 328918A US 32891873 A US32891873 A US 32891873A US 3858468 A US3858468 A US 3858468A
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US
United States
Prior art keywords
rods
clamping tool
chamber
tool according
housing
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
Application number
US328918A
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English (en)
Inventor
Max Pasbrig
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lacrex Brevetti SA
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Lacrex Brevetti SA
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Publication date
Application filed by Lacrex Brevetti SA filed Critical Lacrex Brevetti SA
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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
    • B25B5/00—Clamps
    • B25B5/14—Clamps for work of special profile
    • 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
    • B25B13/10—Spanners; Wrenches with adjustable jaws
    • B25B13/105—Spanners; Wrenches with adjustable jaws composed of a plurality of slidable pins

Definitions

  • ABSTRACT A clamping tool has a housing with a chamber therein [30] Foreign Application Priority Data open at one end. A multiplicity of bars is disposed in F b 18 1972 G an 2207778 the chamber, the bars being individually displaceable e erm y inwardly of the housing against the spring action of a pad member filled with a compressible and/or dis- I 3822 placeable medium, whereby fitting the tool to a com- [58] Fie'ld 81/71 179 185 ponent to be gripped thereby causes only the bars 269/266f 145250 aligned with the component to be displaced mm the chamber, the surrounding bars remaining immobile to [56 ⁇ References Cited grip around the component.
  • the tool can form a spanner, a chuck, a vice clamp jaw, or a coupling means UNITED STATES PATENTS with one or more housings and associated bar assem' l,453,l76 4/1923 Perrine 269/266 bly 3,608,809 9/l97l Cushman 269/266 X I 3,698,267 10/1972 Denney 81/185 16 Clams, 7 Drawmg Flgures atente d Jan. 7, 1975 2 Sheets-Sheet. 1
  • a clamping tool for form-lockingly holding components of varying shapes and sizes such as screw nuts, screw heads or the like of different sizes has been proposed, comprising a housing, an outwardly open chamber in the housing, and a pack of bars disposed in the chamber. The bars lie against each other and against the inward wall surface of the chamber, and are displaceable back into the chamber against the action of a compression spring means.
  • Such a tool can be used to grip a component such as a screw head or a screw nut by the bars being fitted over the component and the tool pressed thereonto, whereby the bars which are in line with the component to be gripped are caused to be retracted into the housing, while the other bars, which lie outside the outline of the component, form-lockingly grip the component, being adapted to its outside contour.
  • the component can be moved by turning the tool.
  • the prior tools of this kind however are generally complicated and expensive, and not entirely satisfactory in operation.
  • the bars are sprung individually, which also causes difficulty in production.
  • the bars are secured with their inward ends to a common, resilient wall extending transversely of the chamber. In both cases, it is usually difficult to achieve satisfactory engagement of the bars on the component to be gripped, resulting in delays and inconvenience.
  • a further object of the invention is to improve the springing of the slidable bars of the prior art tools, whereby the tool is simpler to produce and more reliable in operation.
  • Yet another object is to simplify the co-operation between the bars and the spring means acting thereon, and to make the movement of each bar entirely independent of the movement of any other bar.
  • the tool of this invention has a housing in which is provided a chamber open at one side of the housing.
  • a pack of bars is slidably disposed in the housing, with a spring means in the form of a compression spring pad urging the bars outwardly of the chamber.
  • the bars are prevented from sliding completely out of the chamber either by the bars adjacent the side wall of the chamber being engaged retainingly with said wall, the bars arranged inwardly of the above-mentioned outer bars being engaged with said outer bars and with each other, or by the bars co-operating with a perforated plate which retains the bars in the housing but permits them to slide inwardly of the housing.
  • the pad means is filled with a compressible and/or displaceable medium, to form a resilient cushion member.
  • the resiliency of the cushion member can be controlled by means of an actuating fluid.
  • the tool can be used as a spanner, or as a clamping jaw for example of a vice, or as a releasable coupling member.
  • a tool constructed in accordance with the invention is capable of form-lockingly and securely holding components of widely different shapes and configurations; for the compression spring means according to the invention is very resilient, thereby permitting only the bars which come into butting contact with the component to be clamped, to be pushed back into the chamber in the housing, while the remaining bars which engage around the component remain unaltered in their starting position, and ensure that the component is firmly and positively held, because the filling in the spring pad means provides locally limited resiliency of the pad means due to the compressibility or displa'ceability of the pad means filling.
  • the deformation of the pad means by the movement of the displaced bars, causes the free bars to be even more firmly pressed into their starting position due to the resulting rise in pressure in the pad means.
  • the spring pad means with its filling enclosed by a casing is easy to produce and can be fitted without difficulty into the chamber in the housing, so that assembling the tool is extremely simple.
  • FIG. 3 shows a cross-sectional view similar to that of FIG. 2, but with the spanner fitted to the nut
  • FIG. 4 shows a view in cross-section through the housing of the tool, on an enlarged scale
  • FIG. 5 shows a view in cross-section through a tool in the form of a plugin coupling member
  • FIG. 6 shows a view in cross-section through a tool in the form of a chuck for a machine tool such as a drilling machine or the like
  • FIG. 7 shows a view in partial cross-section of a bench vice.
  • the clamping tool shown is in the form of a spanner comprising a leverlike handle 1 which is fixedly connected to a housing 2.
  • the housing 2 has a cylindrical chamber which is open outwardly at one end.
  • Disposed in the chamber is a multiplicity of thin elongate bars 3 which lie against each other.
  • the longitudinal axes of the bars 3 lie parallel to each other and to the longitudinal axis of the chamber while the bars 3 till the chamber of the housing 2 over the entire cross-sectional area of the chamber.
  • the bars 3 are displaceable relative to each other and in the embodiment illustrated are square in crosssection. However, any other suitable cross-sectional shapes, such as rectangular or round cross-sections,
  • the bars extend over only a part of the chamber.
  • the remaining part of the chamber is filled by a pad means or cushion 4 which is adapted to the chamber and which comprises an elastic casing 5 of. suitable material such as plastics material, and a pressure gas or air filling enclosed in the casing 5.
  • the pad means 4 is resilient and tus acts as a compression spring.
  • the spring pad means 4 bears at one side against the housing, and more precisely against the bottom surface of the chamber, while the inward ends of the bars 3 bear against the other side of the pad means 4.
  • the outward ends of at least most of the bars 3 terminate substantially flush with the open end face of the housing 2 (FIG. 2).
  • the individual bars 3 are prevented from sliding out of the housing 2, or being pressed outwardly from the housing 2 by the spring pad means 4.
  • the outer bars which lie directly against the cylindrical inside wall of the chamber are prevented from sliding out of the chamber by a recess 6' in each of the outer bars, the recesses 6 being form-lockingly engaged with a projection 6 of suitable configuration on the housing.
  • the projection 6 is advantageously formed by an annular flange.
  • the bars which lie inwardly of the above-mentioned outer bars are in turn provided in annular rows at their inward ends respectively with a recess 7 and a projection 7 (progressing from the outside inwardly), so that the inwardly arranged bars are also retained in the housing 2 by the interengagement of the recesses 7 and projections 7.
  • Each of the outer bars also has a recess at its inward end, for co-operating with a projec tion 7 on the inwardly adjacent bar 3.
  • the central bars can also be of somewhat shorter length in the central region of the chamber, so as to form a centering recess 8 as in FIGS. 2 and 4.
  • the above-described spanner operates in the following manner: when a component such as a nut 9 is to be held or clamped for the purpose of subsequently tightening or releasing it, the bars are displaced against the spring action of the pad means 4 from their starting position as shown in FIG. 2 into the component-clamping position illustrated in FIG. 3, when the outward ends of the bars 3 are pressed against the nut 9. When this occurs, only those bars 3 which lie within the crosssectional region of the nut 9 are displaced inwardly of the housing (FIG. 3). The remaining bars therefore form a recess whose outline precisely corresponds to the outline of the nut 9, so that the nut 9 is held positively and can then be tightened or slackened.
  • the nut 9 does not have to be applied to the bars 3 in the region of the centre of the pack of bars 3 or at the centering recess 8, for lateral relative displacement of the bars with respect to the nut 9 will generally not impair the clamping action of the tool.
  • the spanner is to be removed from the nut 9 after the nut has been slackened or tightened, the bars 3 return to their starting position as shown in FIG. 2, under the spring action of the pad means 4.
  • the above-described tool can be used not only for holding or clamping nuts and screw heads of different shapes and sizes, but also other components of any desired form and configuration.
  • the tool can also be used as a chuck, as will be described hereinafter.
  • the tool according to the invention is also envisaged as a releasable connecting and coupling member and as a chuck in force-transmitting shafts, for example in oil drilling apparatuses and the like, and also in bench vices and workpiece processing machines.
  • this embodiment of the tool is in the form of a coupling member in two parts, comprising two housings 2 and 2" which can be secured together by means of a screw-thread.
  • a respective spring pad means 4 and bars 3 are disposed in each of the cylindrical chambers in the housings 2' and 2".
  • the coupling member can also be made in one part and the cylindrical chamber can extend through the coupling member, in which case only one compression-spring pad means is provided, with one of the two assemblies of bars 3 arranged on each side of the single pad means 4.
  • the casing 5 can be filled with hydraulic oil, as is provided in the embodiment of the tool in the form of a chuck, as shown in FIG. 6.
  • the casing 5 of the pad means 4 has connection apertures 5' and 5" for hose connection nipples 11 which extend through bores 10' and 10" in the housing 2.
  • the housing 2 also has an extension portion 13 in which is disposed a plug or screw sleeve 12 for.connection to a manual or a mechanical drive such as a machine shaft or another connection component, for example a screw lever or handle, when the FIG. 6 embodiment is to be used as a socket or box spanner or the like. It is also possible to provide a plurality of recesses 12 at different positions on the housing, for the insertion of tools.
  • the bars 3 in contact with the cylindrical inside surface of the housing carry projections at their inward ends, engaging into a recess 6 in the wall of the housing.
  • the compressionspring pad means 4 of FIG. 6 can be subjected to a controlled pressure, so that a workpiece can be reliably held by the chuck.
  • the pad means 4 can also be filled with small, gas or air filled deformable balls which form a resilient cushion.
  • the cavities between the balls can be filled with fluid introduced by a conduit, for controlling the pressure applied to the pad means.
  • a particularly suitable material for filling the pad means of bench vices or the like clamping means, as shown in FIG. 7, is gas balls.
  • the tool is in the form of a bench vice 15 which has two clamping jaws l8 and 19 with clamping chucks, having substantially rectangular housings.
  • the clamping jaw 18 is stationary while the clamping jaw 19 is movable relative thereto.
  • the clamping jaw 19 is displaceable on guide means 20 on a base portion 23, by means of an actuating spindle 22.
  • the compression spring means again comprises a spring pad means formed by a resilient casing 5 and balls 17 which are enclosed by the casing 5.
  • the balls are preferably made from resilient plastics material with a gas filling, and substantially till the space between the bars 3 and the inward surfaces of the chamber 16 in the housing.
  • the chamber 16 is convergent in its portion 16, at an angle of about so as to provide a wedging action causing the balls 17 to be wedged around the pack of bars 3 when the bars 3 are pressed in axial direction in the chamber 16 by a workpiece 24 which is clamped by the clamping jaws l8 and 19, the movement of the bars 3 causing displacement of the balls 17.
  • the pressure relationship can be controlled by displacement of the movable jaw 19 towards the stationary jaw 18, by means of the spindle 22. As the space between the balls 17 is mostly filled with fluid such as oil, a controlled pressure can also be achieved in this embodiment, by means of connection conduits 21.
  • a clamping tool for form-locking holding of components of varying shapes and sizes, comprising a housing forming a chamber open outwardly at one end, a bundle of slidable rods in the chamber lying against each other and against the inner surface of the chamber, each of said rods having an inner end portion within said chamber in displaceable contact with a resilient cushion, a resilient cushion in the housing urging the rods outwardly of the chamber, said resilient cushion comprising an elastic casing enclosing a compressible medium, and means engaging the rods for retaining the rods in the chamber.
  • a clamping tool according to claim 1 wherein the medium enclosed in the casing comprises gas-filled deformable balls.
  • a claimping tool according to claim ll wherein said means engaging the rods for retaining the rods comprises interengaging recess means and projection means formed in the chamber inner surface and on the rods which bear directly against the wall of said chamber, and interengaging recesses and projections on the other rods.
  • a clamping tool according to claim 7 wherein said recess means and said projection means are at the in ward ends of said rods.
  • a clamping tool according to claim 1 wherein a plurality of said housings are connected together to form a releasable coupling member.
  • a clamping tool according to claim 1 which is in the form of a clamping jaw of a bench vice.
  • a clamping tool according to claim 14 wherein the bars project beyond the clamping jaw housing and extend into the resilient cushion means which comprises resilient balls, the chamber :in the housing tapering conically in its portion which encloses the bars.
  • a clamping tool comprising a housing having an open compartment, a plurality of slidable rods arranged in a bundle which bear against one another, the outermost rods bearing against the inner wall of the compartment, resilient cushion means in the housing compartment for urging the rods outwardly, said resilient cushion having an elastic sleeve, a compressible medium enclosed in said sleeve, each of said rods being provided with securing means for retaining the rods in other via step-like formations in each rod.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Machine Tool Units (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Gripping On Spindles (AREA)
US328918A 1972-02-18 1973-02-02 Clamping tool Expired - Lifetime US3858468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2207778A DE2207778C3 (de) 1972-02-18 1972-02-18 Werkzeug zum formschlüssigen Festhalten von Teilen unterschiedlicher Form und Größe

Publications (1)

Publication Number Publication Date
US3858468A true US3858468A (en) 1975-01-07

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US328918A Expired - Lifetime US3858468A (en) 1972-02-18 1973-02-02 Clamping tool

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US (1) US3858468A (sl)
JP (1) JPS5532509B2 (sl)
AT (1) AT335936B (sl)
AU (1) AU457870B2 (sl)
BE (1) BE795629A (sl)
BR (1) BR7301168D0 (sl)
CA (1) CA981943A (sl)
DD (1) DD101588A5 (sl)
DE (1) DE2207778C3 (sl)
ES (1) ES411728A1 (sl)
FR (1) FR2172118B1 (sl)
GB (1) GB1385154A (sl)
IN (1) IN138631B (sl)
IT (1) IT973315B (sl)
ZA (1) ZA73906B (sl)

Cited By (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047709A (en) * 1975-09-25 1977-09-13 Ab Westin & Backlund Clamping device for work pieces of irregular shape
US4237756A (en) * 1978-11-01 1980-12-09 Maclay G Jordan Adjustable wrench
US4284267A (en) * 1980-03-26 1981-08-18 Dennis M. Thayer Variable contour vice jaw
US4752063A (en) * 1987-03-16 1988-06-21 West Ventures Enterprises, Inc. Flexible element vise attachment
US4831789A (en) * 1987-03-27 1989-05-23 Essilor International (Compagnie Generale D'optique) Tool whose shape adapts automatically to the surface of an ophthalmic lens
US4836064A (en) * 1987-04-10 1989-06-06 Slator Damon T Jaws for power tongs and back-up units
US4869137A (en) * 1987-04-10 1989-09-26 Slator Damon T Jaws for power tongs and bucking units
US4887498A (en) * 1988-10-31 1989-12-19 Charles Zayat Clamping tool
US5246216A (en) * 1992-10-30 1993-09-21 Oberst E Ernest Vise jaw attachment for irregular shaped workpieces
US6092443A (en) * 1997-09-23 2000-07-25 Zayat, Jr.; Charles D. Universal socket tool
US6928906B1 (en) 2004-08-31 2005-08-16 Worktools, Inc. Large self-forming socket
US20050199104A1 (en) * 2004-03-11 2005-09-15 Chih-Ching Hsien Box end wrench
US20060042427A1 (en) * 2004-08-31 2006-03-02 Walters Maynard A Large self-forming socket
US20060196318A1 (en) * 2005-03-02 2006-09-07 Teng Chung H Wrench with end stopper arrangement
GB2428017A (en) * 2005-07-07 2007-01-17 Amar Hayat Multi-driver tool
US20100043603A1 (en) * 2008-08-25 2010-02-25 Black & Decker Inc. Powered ratchet assembly and related method
US20100192732A1 (en) * 2009-01-30 2010-08-05 David Charles Campbell Multiple Pin Retention For Universal Socket
CN102581801A (zh) * 2011-07-05 2012-07-18 苏州斑马工业设计有限公司 一种通用型螺丝刀
US20140263575A1 (en) * 2013-03-14 2014-09-18 Alpha Design Co., Ltd. Element pressing apparatus and heating system using element pressing apparatus
CN106737332A (zh) * 2016-12-16 2017-05-31 马根昌 异形扳手
US10759025B2 (en) 2017-05-12 2020-09-01 Millersville University Of Pennsylvania Positive interlock network (PIN) vise and mold
US20210187669A1 (en) * 2019-12-24 2021-06-24 Fanuc Corporation Light shield and laser processing system
US11224968B2 (en) 2014-05-06 2022-01-18 Sarcos Lc Energy recovering legged robotic device
US11241801B2 (en) 2018-12-31 2022-02-08 Sarcos Corp. Robotic end effector with dorsally supported actuation mechanism
US11331809B2 (en) 2017-12-18 2022-05-17 Sarcos Corp. Dynamically controlled robotic stiffening element
US11351675B2 (en) * 2018-12-31 2022-06-07 Sarcos Corp. Robotic end-effector having dynamic stiffening elements for conforming object interaction
US11717956B1 (en) 2022-08-29 2023-08-08 Sarcos Corp. Robotic joint system with integrated safety
US11759944B2 (en) 2016-11-11 2023-09-19 Sarcos Corp. Tunable actuator joint modules having energy recovering quasi- passive elastic actuators with internal valve arrangements
US11772283B2 (en) 2016-11-11 2023-10-03 Sarcos Corp. Clutched joint modules having a quasi-passive elastic actuator for a robotic assembly
US11826907B1 (en) 2022-08-17 2023-11-28 Sarcos Corp. Robotic joint system with length adapter
US11833676B2 (en) 2020-12-07 2023-12-05 Sarcos Corp. Combining sensor output data to prevent unsafe operation of an exoskeleton
US11897132B1 (en) 2022-11-17 2024-02-13 Sarcos Corp. Systems and methods for redundant network communication in a robot
US11924023B1 (en) 2022-11-17 2024-03-05 Sarcos Corp. Systems and methods for redundant network communication in a robot

Families Citing this family (10)

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GB2148239B (en) * 1983-09-12 1987-06-03 Imperial College Artificial hand device
DE3635359C2 (de) * 1986-10-17 1995-05-18 Festo Kg Spannelement
IT1221458B (it) * 1988-02-18 1990-07-06 Omga Spa Gruppo di bloccaggio di pezzi aventi sezioni a profilo mistilineo su un piano di lavoro di macchine operatrici
DE3940320C1 (en) * 1989-12-06 1991-06-13 Lorenz 8197 Koenigsdorf De Stoeger Socket spanner head with hexagonal nut cavity - which has circular base with dia. corresp. to max nut dia. and slidable pin(s)
GB9000991D0 (en) * 1990-01-17 1990-03-14 Cole Adrian T Multi size spanner
DE4227195A1 (de) * 1992-08-17 1994-02-24 Poeting Walter Ingbuero Werkstückaufnahme für toleranzbehaftete Werkstücke zum Abstützen und Toleranzausgleich bei der Bearbeitung
DE4339102A1 (de) * 1992-11-26 1994-06-01 Friedhelm Prof Dipl Ing Sehrt Handhabungsvorrichtung zum mechanischen Greifen, Halten, Bewegen oder dergl. Handhaben von Gegenständen insbesondere für Handhabungsgeräte
US5460064A (en) * 1994-04-19 1995-10-24 Zayat, Jr.; Charles D. Universal socket tool
GB2316900A (en) * 1996-09-07 1998-03-11 Colin King Tool having adaptable gripping surface
DE19752783A1 (de) * 1997-11-28 1999-06-02 Bayerische Motoren Werke Ag Vorrichtung zum Spannen eines insbesondere Freiformflächen aufweisenden Werkstücks

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US1453176A (en) * 1921-03-18 1923-04-24 Perrine Lester Compensating jaw for chucks and the like
US3608809A (en) * 1968-08-16 1971-09-28 Western Electric Co Apparatus for uniform multiple-lead bonding
US3698267A (en) * 1970-12-18 1972-10-17 Jon R Denney Fastener actuator

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GB595803A (en) * 1945-06-08 1947-12-17 Charles Richard Tindale Improvements in or relating to vices and the like
AT76279B (de) * 1916-01-27 1919-04-25 Ingenieur Otto Herkt Aus verschiebbaren Spanngliedern bestehende Einspann-Vorrichtung für unregelmäßig geformte Gegenstände.
US2754708A (en) * 1953-08-25 1956-07-17 Multiple Die Vise Co Inc Vise for irregularly shaped objects
US3349655A (en) * 1966-06-24 1967-10-31 William N Locke Wrench having a bundle of rods individually retractable to conform to a variety of fastener configurations
GB1227530A (sl) * 1968-06-12 1971-04-07

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1453176A (en) * 1921-03-18 1923-04-24 Perrine Lester Compensating jaw for chucks and the like
US3608809A (en) * 1968-08-16 1971-09-28 Western Electric Co Apparatus for uniform multiple-lead bonding
US3698267A (en) * 1970-12-18 1972-10-17 Jon R Denney Fastener actuator

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4047709A (en) * 1975-09-25 1977-09-13 Ab Westin & Backlund Clamping device for work pieces of irregular shape
US4237756A (en) * 1978-11-01 1980-12-09 Maclay G Jordan Adjustable wrench
US4324160A (en) * 1978-11-01 1982-04-13 Maclay G Jordan Adjustable wrench
US4284267A (en) * 1980-03-26 1981-08-18 Dennis M. Thayer Variable contour vice jaw
US4752063A (en) * 1987-03-16 1988-06-21 West Ventures Enterprises, Inc. Flexible element vise attachment
US4831789A (en) * 1987-03-27 1989-05-23 Essilor International (Compagnie Generale D'optique) Tool whose shape adapts automatically to the surface of an ophthalmic lens
US4836064A (en) * 1987-04-10 1989-06-06 Slator Damon T Jaws for power tongs and back-up units
US4869137A (en) * 1987-04-10 1989-09-26 Slator Damon T Jaws for power tongs and bucking units
US4887498A (en) * 1988-10-31 1989-12-19 Charles Zayat Clamping tool
US5246216A (en) * 1992-10-30 1993-09-21 Oberst E Ernest Vise jaw attachment for irregular shaped workpieces
US6092443A (en) * 1997-09-23 2000-07-25 Zayat, Jr.; Charles D. Universal socket tool
US20050199104A1 (en) * 2004-03-11 2005-09-15 Chih-Ching Hsien Box end wrench
US6948407B1 (en) * 2004-03-11 2005-09-27 Chih-Ching Hsien Box end wrench
US6928906B1 (en) 2004-08-31 2005-08-16 Worktools, Inc. Large self-forming socket
US20060042427A1 (en) * 2004-08-31 2006-03-02 Walters Maynard A Large self-forming socket
US7290469B2 (en) 2004-08-31 2007-11-06 Worktools, Inc. Large self-forming socket
US20060196318A1 (en) * 2005-03-02 2006-09-07 Teng Chung H Wrench with end stopper arrangement
GB2428017A (en) * 2005-07-07 2007-01-17 Amar Hayat Multi-driver tool
US20100043603A1 (en) * 2008-08-25 2010-02-25 Black & Decker Inc. Powered ratchet assembly and related method
US7963195B2 (en) 2008-08-25 2011-06-21 Black & Decker Inc. Powered ratchet assembly
US7886637B2 (en) 2009-01-30 2011-02-15 Black & Decker Inc. Multiple pin retention for universal socket
US20100192732A1 (en) * 2009-01-30 2010-08-05 David Charles Campbell Multiple Pin Retention For Universal Socket
CN102581801A (zh) * 2011-07-05 2012-07-18 苏州斑马工业设计有限公司 一种通用型螺丝刀
US20140263575A1 (en) * 2013-03-14 2014-09-18 Alpha Design Co., Ltd. Element pressing apparatus and heating system using element pressing apparatus
US8875977B2 (en) * 2013-03-14 2014-11-04 Alpha Design Co., Ltd. Element pressing apparatus and heating system using element pressing apparatus
US11224968B2 (en) 2014-05-06 2022-01-18 Sarcos Lc Energy recovering legged robotic device
US11759944B2 (en) 2016-11-11 2023-09-19 Sarcos Corp. Tunable actuator joint modules having energy recovering quasi- passive elastic actuators with internal valve arrangements
US11981027B2 (en) 2016-11-11 2024-05-14 Sarcos Corp. Tunable actuator joint modules having energy recovering quasi-passive elastic actuators with internal valve arrangements
US11926044B2 (en) 2016-11-11 2024-03-12 Sarcos Corp. Clutched joint modules having a quasi-passive elastic actuator for a robotic assembly
US11772283B2 (en) 2016-11-11 2023-10-03 Sarcos Corp. Clutched joint modules having a quasi-passive elastic actuator for a robotic assembly
CN106737332A (zh) * 2016-12-16 2017-05-31 马根昌 异形扳手
US10759025B2 (en) 2017-05-12 2020-09-01 Millersville University Of Pennsylvania Positive interlock network (PIN) vise and mold
US11331809B2 (en) 2017-12-18 2022-05-17 Sarcos Corp. Dynamically controlled robotic stiffening element
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Also Published As

Publication number Publication date
IN138631B (sl) 1976-03-06
DE2207778A1 (de) 1972-08-30
DE2207778B2 (de) 1975-01-30
ZA73906B (en) 1973-11-28
BR7301168D0 (pt) 1973-10-09
AT335936B (de) 1977-04-12
DD101588A5 (sl) 1973-11-12
GB1385154A (en) 1975-02-26
FR2172118A1 (sl) 1973-09-28
FR2172118B1 (sl) 1977-02-04
BE795629A (fr) 1973-06-18
DE2207778C3 (de) 1975-09-04
AU5189773A (en) 1974-08-08
ES411728A1 (es) 1976-01-01
JPS4890097A (sl) 1973-11-24
CA981943A (en) 1976-01-20
JPS5532509B2 (sl) 1980-08-25
ATA97573A (de) 1976-07-15
IT973315B (it) 1974-06-10
AU457870B2 (en) 1975-02-13

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