Class 81/90.2 - Cam or gear operated

Subclass of Class 81 - Tools
Definition: Wrench wherein the handle-lever moves a jaw through intermediate
No. of patents: 38
Last issue date: 08/09/2011

Number	Title	Issue Date
7992470	Adjustable gripping tool A self-energizing and de-energizing adjustable gripping tool for engaging a work piece to impart work thereto includes a first element and second element connected for relative movement. The second element includes an actuation portion having a plurality of slots. T...	08/09/2011
7938044	Locking screw driver handle A driver including a handle, lever, swivel cap, shaft, and a tip mechanically connected to the lever configured to engage a screw. Engaging the lever causes the tip to either compress or expand so as to lock the screw to the driver. According to one exemplary embodi...	05/10/2011
7748298	Adjustable gripping tool A self-energizing and de-energizing adjustable gripping tool for engaging a work piece to impart work thereto includes a first element and second element connected for relative movement. The second element includes an actuation portion having a plurality of slots. T...	07/06/2010
7311020	Tool for operating subterranean utility valves A tool for operating a subterranean utility valve having limited accessibility includes a hollow housing with a plurality of elongated members mounted for sliding movement within the housing. Each elongated member is movable in a direction away from the first open e...	12/25/2007
7272994	Bolt grasping device A grasping device comprises a grasping member springably connected to a handle member. When the grasping member is withdrawn from the handle member, plier arms on the grasping member open so that an object to be grasped may be positioned therebetween. When the grasp...	09/25/2007
7262383	Feeder device for a fixing element and method for the operation thereof A feed device for fastening elements with low length-to-diameter ratio has a hollow clamp into which individual fastening elements are inserted through a feed channel. The clamp has an internal pocket for pre-positioning a fastening element. A piston moves through t...	08/28/2007
7246540	Nut and bolt holder and starter Three congruent prongs (16A, 16B, 16C) mounted on a shaft tube (12), converges simultaneously when an operating sleeve (14) moves forward. This action, along with their notches and shape provides a firm grip for holding and startin...	07/24/2007
7201084	Adjustable ratchet wrench An adjustable wrench or spanner is disclosed. It comprises essentially an elongated handle element with a convex urging portion at one end, an upper jaw element with a concave urging portion, a lower jaw element with a protrusion portion and a ratchet assembly. The ...	04/10/2007
7188551	Spanner Disclosed is a spanner which is generally used as a typical tool for tightening or releasing a bolt. The spanner is capable of tightening or releasing a bolt continually in one direction by the effect of a toggle bar (400) pivotally mounted on a jaw of two ja...	03/13/2007
7172598	Force specific impacting device An impacting device includes a hollow body and a movable member. The hollow body includes an inner chamber having an interior surface, the interior surface including at least one interference member extending radially inward therefrom. The hollow body also includes ...	02/06/2007
7107878	Tool with integral fluid reservoir for handling oil and fuel filters A tool for oil and fuel filters includes a generally cylindrical body having an open upper and a closed lower end. The body includes an interior chamber having a plurality of tapered radial projections that extend longitudinally within the interior chamber. The proj...	09/19/2006
7066270	Multilateral reference point sleeve and method of orienting a tool A multilateral reference point sleeve includes a tubular member configured to be received in a tubing string of a wellbore. The tubular member has an uphole end and a downhole end. The uphole end is angled to define an orientation profile, and the orientation profil...	06/27/2006
6889579	Adjustable gripping tool A self-energizing and de-energizing adjustable gripping tool for engaging a workpiece to impart movement thereto includes a first element and second element connected for relative angular movement. The second element includes an actuation portion having a plurality ...	05/10/2005
6679138	Bottle opener Bottle cap removal device with an opening therein to receive a bottle cap, including a top and a base which combine to provide an envelope for the bottle cap removal device and including an annular member and a surface opposed to the annular member operat...	01/20/2004
6606924	Fastener starter tool A fastener starter tool includes a number of spring retention fingers for retaining a small part, or combination of parts. The tool has an inner housing, which holds the spring retention fingers, a hand grip, and an outer housing configured to slide over ...	08/19/2003
6539826	Screwing element In a screwing element (1) for accommodation of a fastener head (5) of a fastener (6) there are provided jaws (3, 4) for seizing the fastener head. The jaws (3, 4) can be axially inserted into or withdrawn from the holder (2), wherein the jaws in the withd...	04/01/2003
6367356	Tool driver device An improved tool driver has improved simplicity, torquing strength, and durability and allows a user to interchangeably use tool bits, such as sockets, from at least two different standard sized sets without changing drivers or requiring adapters....	04/09/2002
6240811	Screwing element In a screwing element (1) for accommodation of a fastener head (5) of a fastener (6) there are provided jaws (3, 4) for seizing the fastener head. The jaws (3, 4) can be axially inserted into or withdrawn from the holder (2), wherein the jaws in the withd...	06/05/2001
6138530	Locking collar removal tool A tool to remove a locked collar locked to the threaded shaft of a frangible fastener, having a collet with gripping means and inner grasping teeth has a segment removed to permit the collet to decrease in size. An outer cylinder with inner threads are sl...	10/31/2000
6098972	Edge clamp In order to provide an edge clamp, in particular, for pressing edge parts onto edges of workpieces extending between an upper side and an underside, comprising a clamp body, a first clamping jaw adapted to abut on the upper side of the workpiece and a sec...	08/08/2000
6073520	Wrench for removing damaged stud bolts A wrench for removing stud bolts that are damaged in place, lost the bolt head and/or the bolt shank is broken, basically including a socket assembly having a housing with upper and annular walls, a tubular handle assembly and gripping toothed dog members...	06/13/2000
6000300	Adjustable socket wrench An adjustable socket wrench has only two components, namely, a collet driver with movable jaws and a circumscribing adjustable sleeve. Positive detent positioning of the fastener engaging jaws is obtained by rotation of the adjusting sleeve which radially...	12/14/1999
5988023	Slotted pin engaging tool An apparatus for engaging a slotted pin comprising a cylindrical member defining a cylindrical axial pin bore and two tab slots spaced 180° apart, the slots for a portion of their length connecting through the member to the bore, engaging tabs pivotally ...	11/23/1999
5740704	Socket wrench A ratchet wrench (10) includes a unitary socket assembly (20) having a collet (26) and an adjustable fastener engaging socket (24) which may be positioned over a conventional fastener and which may then be decreased in diameter to effect a gripping attach...	04/21/1998
5628235	Driving attachment for eye-bolt hangers and the like A pair of jaws, having two sets of mutually perpendicular surfaces which are oriented 45 degrees with respect to the direction of jaw motion. During adjustment the jaws move parallel to each other to accommodate different shank diameters. The opening and ...	05/13/1997
5460063	Combination hand tool A combined screwdriver and nut driver wherein multi-bit screwdriver is on one end and an adjustable nutdriver on the other end for easy transportation....	10/24/1995
5282826	Dissector for endoscopic and laparoscopic use A surgical instrument comprising an elongated tubular hollow shaft, first and second opposable jaws pivotable at the distal end of the shaft, and first and second opposable dissecting tips pivotable at the ends of the jaws. The jaws are generally pivotabl...	02/01/1994
5261263	Crimping pliers with radially opposed jaws An improved crimping tool mechanism with radially opposed jaws that direct and balance compressive forces toward the center of the work, joining cylindrical connectors and cables with more reliable electrical and mechanical contact than that obtainable us...	11/16/1993
5249488	Oil filter remover A lever actuated oil filter remover is presented. At least two arcuate shell-like coupling elements are coupled together inside a casing by a spider arm. An interior cam on the casing can mate with an external cam on the arcuate elements so that the diame...	10/05/1993
5207130	Ratchet locking plier A ratchet wrench includes an expandible fastener engaging socket which may be positioned over a conventional fastener and which may then be decreased in diameter to effect a gripping attachment. A locking lever is attached to the ratchet wrench and is usa...	05/04/1993
4856386	Socket assembly for multiple size wrenching surfaces A socket assembly adapts automatically to wrenching surfaces of a nut or a bolt within a predetermined range of sizes. The socket assembly includes interfitting and relatively rotatable outer and inner annular members and a plurality of spring-loaded pawl...	08/15/1989
4773287	Open-ended ratchet wrench An open-ended ratchet wrench characterized by a handle pivotally carrying a stationary jaw, with a toggle jaw pivotally secured to the latter. The handle includes a cam at the jaw mounting end thereof which presents camming surfaces selectively functional...	09/27/1988
4757729	Adjustable socket for a wrench An adjustable socket for turning threaded fasteners that have polygonal heads includes a core member detachably connectable to a fastener driving tool, and a pair of jaw members flanking the core member and supported thereon for longitudinal movement have...	07/19/1988
4724730	Wrench socket with cam locking feature A cam lock socket has a plurality of pins having substantially oval-shaped cross-sections. The pins are received in complementary axially-extending circumferentially-spaced scalloped recesses formed in the socket body. When the socket is rotated in one di...	02/16/1988
4676125	Adjustable socket An improved adjustable socket for use with a ratchet wrench drive handle to loosen or tighten bolts, nuts and other threaded workpieces, is comprised of a hollow cylindrical casing having a passive end adapted to receive a wrench handle protuberance, an o...	06/30/1987
4571975	Fluid actuated tool A fluid actuated tool for securing together sheet metal parts comprising a power pack unit including a piston and cylinder assembly to which there is connected a jaw housing having a pair of complementary jaw members that are actuated between operative an...	02/25/1986
4348921	Open end wrench An open ended wrench is disclosed for engaging a nut or other object when moved in one direction and disengaging from the nut or object when moved in an opposite direction. The wrench consists of a first and a second jaw mounted on a handle and an adjusti...	09/14/1982
4235134	Adjustable wrench An adjustable wrench comprises a supporting member having a plurality of gripping arms pivotally supported thereon. The gripping arms are moveable into and out of engagement with a hex-headed nut or bolt. The apparatus may be modified to use two or four o...	11/25/1980

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Class 81/90.2 - Cam or gear operated