Source: http://www.google.com/patents/US6021694?ie=ISO-8859-1
Timestamp: 2014-04-21 06:56:04
Document Index: 225353102

Matched Legal Cases: ['art 1', 'art 1', 'art 1', 'art 1', 'art 27', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1', 'art 1']

Patent US6021694 - Surgical torque wrench - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsA surgical torque wrench having jaws for application to a rotating part and a handle removably secured to the jaws. The jaws and handle are secured together about a pivot that is parallel to the axis of rotation of the rotating part. A securing device is fitted between the jaws and the handle which secures...http://www.google.com/patents/US6021694?utm_source=gb-gplus-sharePatent US6021694 - Surgical torque wrenchAdvanced Patent SearchPublication numberUS6021694 APublication typeGrantApplication numberUS 09/173,997Publication dateFeb 8, 2000Filing dateOct 16, 1998Priority dateApr 18, 1996Fee statusPaidAlso published asDE19615241C1, EP0897290A1, EP0897290B1, WO1997039694A1Publication number09173997, 173997, US 6021694 A, US 6021694A, US-A-6021694, US6021694 A, US6021694AInventorsJens BegerOriginal AssigneeAseculap Ag & Co. KgExport CitationBiBTeX, EndNote, RefManPatent Citations (11), Referenced by (11), Classifications (25), Legal Events (6) External Links: USPTO, USPTO Assignment, EspacenetSurgical torque wrenchUS 6021694 AAbstract A surgical torque wrench having jaws for application to a rotating part and a handle removably secured to the jaws. The jaws and handle are secured together about a pivot that is parallel to the axis of rotation of the rotating part. A securing device is fitted between the jaws and the handle which secures them relative to each other in a given angular position and is releasable when a given torque is reached. A removable handle member is provided to fix the jaws to the handle to allow for application of torque.
This end edge can be inclined slightly in relation to a tangent to a circle drawn around the pivot axis of the jaw part, for example, at an angle of between 5 and 10 out of the recess being difficult in one direction and easily possible in the other direction. In the difficult direction, the detent member is lifted out upon snapping-out of the torque wrench when a certain torque is exceeded. A lifting out of the detent member to the easy side occurs when the jaw part is exchanged. Also, owing to the inclined arrangement of the end edge, the detent member, after rising out of the arcuate recess, pivots the end edge still further by engaging it, i.e., after passing a dead center, the detent member reinforces the pivoting-out of the jaw part on rising out of the recess so the exchange of the jaw part is additionally facilitated.
This rear end edge 7 extends essentially transversely to the longitudinal direction of the jaw part 1 and includes three areas which are separate from one another. A first straight-lined area 8 adjoining the bottom edge of the jaw part 1 is inclined in relation to the longitudinal direction of the jaw part 1 about an angle of approximately 70 to 75 direction towards the jaw area 4. A likewise straight-lined area 9 adjoining the top edge of the jaw part 1 has a somewhat larger inclination in relation to the longitudinal direction of the jaw part, for example, of the order of magnitude of 80 between the straight-lined areas 8 and 9.
Longitudinally displaceably and rotatably received in the transverse bore 22 is a bearing shaft 24 which carries a radially projecting turning grip 25 at its end protruding outwards from the transverse bore 22. Machined in the outer circumference of the bearing shaft 24 is an axially parallel longitudinal groove 26 which bends round in the circumferential direction at its end adjacent to the turning grip 25 and extends there at an incline to the longitudinal axis of the bearing shaft (FIG. 8). At the end of this inclined part 27 of the longitudinal groove 26 which extends over a circumferential angle of approximately 90 has a recess 28 extending in the axial direction, and this recess 28 turns back in the direction towards the end of the bearing shaft 24 facing away from the turning grip 25 (FIG. 7).
In this release position, the jaw part 1 can be inserted into the space 15 between the two arms 16 and 17 in such a way that the bearing opening 6 is aligned with the transverse bore 22 and the blind hole bore 23. As the ball 31 projects slightly into the space 15, the user must apply a certain force with the jaw part 1 when inserting the jaw part 1 into the space 15, in order to push the ball 31 into the blind hole bore 30 against the force of the pressure spring 34. Once the bearing opening 6 is in alignment with the transverse bore 22 and the blind hole bore 23, the ball 31 moves forwards elastically under the effect of the pressure spring 34 and engages slightly in the bearing opening 6. In this way, when inserting the jaw part 1, the user feels the correct positioning of the bearing opening 6 in alignment with the transverse bore 22 and the blind hole bore 23 by the forward movement of the ball 31 and can then push the bearing shaft 24 forwards in the transverse bore 22. The bearing shaft extends through the bearing opening 6 in the jaw part 1 and finally enters the blind hole bore 23. By turning the turning grip 25, the bearing shaft 24 is pushed forwards into the bearing position and locked in the described manner by engagement of the pin 29 in the recess 28. In this way, the jaw part 1 is pivotably mounted between the arms 16 and 17. Release of the jaw part 1 is possible in the reverse manner by the bearing shaft 24 being turned through 90 the transverse bore 22.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS2959078 *Jun 17, 1959Nov 8, 1960Skidmore Hungerford Ind IncPredetermined torque release wrenchUS4655104 *Jan 6, 1986Apr 7, 1987Ryeson CorporationAdjustable torque wrenchUS4870879 *Jul 5, 1988Oct 3, 1989James ShiehQuick-set dial type torque wrenchUS5337638 *Feb 11, 1993Aug 16, 1994Micro Motors, Inc.Torque control ratchet wrenchUS5503042 *Nov 16, 1993Apr 2, 1996Precision Instruments, Inc.Antifriction force transmission means for plungers of torque signalling wrenchesUS5507211 *Jun 23, 1994Apr 16, 1996Amei Technologies Inc.Releasable socketDE4129025A1 *Aug 31, 1991Mar 4, 1993Aesculap AgSurgical instrument for tightening bone screws - consists of two handles with pivot and jaws to grip bone and screwDE8705205U1 *Apr 8, 1987Jul 2, 1987Biotronik Mess- Und Therapiegeraete Gmbh & Co Ingenieurbuero Berlin, 1000 Berlin, DeTitle not availableEP0704281A1 *Sep 8, 1995Apr 3, 1996Institut Straumann AgSurgical torque wrench with torque indicatorFR1063803A * Title not availableGB732013A * Title not available* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS6162053 *Nov 1, 1999Dec 19, 2000Biolok International Inc.Analog dental wrenchUS6408723Jul 28, 2000Jun 25, 2002Snap-On Technologies, Inc.Insulating composite shaft tool with interchangeable heads and method of construction thereofUS6807885 *Jan 15, 2003Oct 26, 2004Omnisonics Medical Technologies, Inc.Torque limiting wrench for an ultrasonic medical deviceUS6860877 *Sep 29, 2000Mar 1, 2005Computer Motion, Inc.Heart stabilizer support armUS6928907 *Nov 28, 2001Aug 16, 2005Satelec SaDynamometric keyUS7578219 *Sep 5, 2008Aug 25, 2009Proxene Tools Co., Ltd.Adjustable spanner with electronic strain gauge functionUS7819025 *Jun 25, 2008Oct 26, 2010The Boeing CompanyElectronic torque wrench and method for torquing fastenersUS8311658Jun 25, 2008Nov 13, 2012The Boeing CompanySystem and method for monitoring completed manufacturing operationsUS8327740May 30, 2008Dec 11, 2012Elos Pinol A/STorque wrench, handle and head pieceEP1839813A2 *Mar 28, 2007Oct 3, 2007Proxene Tools Co., Ltd.Adjustable spanner with electronic strain gauge functionWO2002043927A1 *Nov 28, 2001Jun 6, 2002Casabonne ThierryDynamometric key* Cited by examinerClassifications U.S. Classification81/483, 73/862.21International ClassificationA61B17/88, B25B23/159, A61F2/00, B25B23/00, A61C1/18, A61C8/00, B25B23/143, B25B23/142, A61F2/46Cooperative ClassificationA61C8/0089, A61F2002/4624, B25B23/0035, A61F2220/0025, A61F2/4603, A61B17/8875, B25B23/1427, A61F2002/3049, A61C1/186European ClassificationA61C8/00T, A61F2/46B, A61B17/88S, B25B23/142B2, B25B23/00A4Legal EventsDateCodeEventDescriptionAug 1, 2011FPAYFee paymentYear of fee payment: 12Oct 23, 2008ASAssignmentOwner name: AESCULAP AG, GERMANYFree format text: CHANGE OF NAME;ASSIGNOR:AESCULAP AG & CO. KG;REEL/FRAME:021731/0524Effective date: 20080506Owner name: AESCULAP AG,GERMANYFree format text: CHANGE OF NAME;ASSIGNOR:AESCULAP AG & CO. KG;REEL/FRAME:21731/524Aug 2, 2007FPAYFee paymentYear of fee payment: 8Aug 1, 2003FPAYFee paymentYear of fee payment: 4Apr 3, 2001CCCertificate of correctionDec 10, 1998ASAssignmentOwner name: AESCULAP AG & CO. KG, GERMANYFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:BEGER, JENS;REEL/FRAME:009650/0553Effective date: 19981105RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google