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Class 81/454 - Having pivoted, relatively movable, work gripping members


Subclass of Class 81 - Tools
Definition: Gripping means having two or more relatively movable members
No. of patents: 21
Last issue date: 04/17/2012


NumberTitleIssue Date
8156847Undercut screw feature and driver
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...
04/17/2012
8087329Screwdriver for bone screws
In a screwdriver for bone screws, having a handle and rotationally fixedly held thereon a shaft, the free end of which has a non-circular cross section and is insertable in a positively locked manner in a non-circular receiving opening in the head of a bone screw, a...
01/03/2012
7331263Surgical screwdrivers with torque control and methods of use
The present application is directed to screwdrivers and methods of use for applying a controlled amount of torque to a fastener. In one embodiment, the screwdriver includes a shaft constructed of a material that is deformable upon the application of an excessive amo...
02/19/2008
7243688Device for reforming socket contacts
An apparatus for reworking contacts of sockets is provided with an elongated member having a first formation tip, and a pair of arms having second formation tips, to respectively impart first and second profiles to first and second surfaces of a contact of a socket....
07/17/2007
7174812Driving tool having fastener retaining device
A driving tool includes a driving shank having a handle for rotating the driving shank and having an engaging hole formed by two or more spring blades for receiving a fastener, and an actuating device for actuating the spring blades to move radially inward and to fo...
02/13/2007
7117765Color coded tool kit and methods
A tool kit having at least one ratchet and at least two sets of sockets. Each ratchet having a first color coded indicia indicating the size of the driver on each particular ratchet. The first, and the second set of sockets having on each socket, the first color cod...
10/10/2006
6314845Clamp for screwed fastening member
Clamp for screwed fastening member, including: a main body formed with an internal axial passage; a rod body connected with the main body; two clamping members each having a bottom clamping end, the clamping members being pivotally disposed on the main bo...
11/13/2001
6145982Eyeglass screwdriver
An eyeglass screwdriver has a generally cylindrically shaped body having a first end and a second end with a driver head attached to the first end of the body for screwing in and out screws. A swivelable and rotateable head at the second end allows pressu...
11/14/2000
5797302Screwdriver adapted to be coupled to an electric drill for automatic rotation thereof
A screwdriver adapted to be coupled to an electric drill for automatic rotation thereof including an interior member having a lower extent with a circular cross-section and a screwdriver tip at its end. The interior member has an upper extent of an enlarg...
08/25/1998
5671642Centering mechanism for a fastener driving device
A driving device for driving a fastener (2) includes a centering mechanism (9) for centering and guiding the fastener (2). The centering mechanism includes centering elements (10, 26, 36, 37) that are tiltably or slidably connected to a mounting body (3) ...
09/30/1997
5423825Spinal fusion instruments and methods
An instrument for harvesting an iliac bone graft comprises an elongate handle having a proximal gripping portion terminating in a substantially blunt striking surface, and a distal working portion including a pair of longitudinally extending, transversely...
06/13/1995
5088359Fastener nose piece feeder
A nose piece feeder for a power driver in which articles are guided from a feed passage into a discharge passage by a pair of jaws which are movable from a guide position to a driver access position. When the driver is activated to expel an article from t...
02/18/1992
4862774Screw holder
A screwholder device comprising jaws which form two halves of an axial passageway down which a screw is driven. The jaws are hinged at the rearmost end and resiliently held together by a narrowing at the front exit ends. The screw is driven down the passa...
09/05/1989
4707900Cylinder liner sleeve puller
A cylinder liner sleeve puller has four legs having flanged feet at their bottom and being connected by four pivotably mounted pivot arms. The arms are pivotably connected to a central hub, which arrangement forces the lower ends of the legs outward when ...
11/24/1987
4611515Tool for control and use of miniature screws and threaded fasteners
In combination with a miniature jewelers' screwdriver, or similar tool, a barrel made of a stiffly flexible material (preferably a specified plastic) incloses the shaft of the screwdriver. The barrel provides at its working or tip end a set of flexible el...
09/16/1986
4581962Tool to capture, control and manipulate threaded fasteners
The invention is intended for use with threaded fasteners, screws, bolts and similar devices, in their almost limitless applications to assembling objects and structures. These fasteners exist in many types, each requiring a special tool bit. On many occa...
04/15/1986
4581963Screw holding device for screwdrivers
A plurality of devices are disclosed for supporting threaded screws in a plane normal to a surface into which the screws are threaded. Each embodiment includes means for supporting the shank of the screw at points intermediate the ends thereof rather than...
04/15/1986
4539874Tool driver and fastener apparatus
A tool driver and fastener that prevents the driver from lifting up off the fastener. The fastener has at least one undercut slot that matches with a blade on the driver to prevent uplift. The driving tool and fastener mate with one another and have respe...
09/10/1985
4462283Screw driver apparatus
For screwing a threaded fastener into an internally threaded member, there is disclosed a screw driver apparatus which comprises a casing formed with a through bore to receive the threaded fastener, a tubular member formed with a supplying passageway havi...
07/31/1984
4455898Tool for capture, control and manipulation of threaded fasteners
In combination with its own bit, or with a screwdriver, a barrel made of a stiffly flexible material, preferably a specified plastic, slides over the bit or screwdriver shaft, and provides at one end a gripping head for screw heads, and at the other a qui...
06/26/1984
3949795Sink clip inserting device
A hand tool to facilitate installation of sink clips, comprising a frame coaxial with a screwdriver which is pivoted for rotation with respect to the frame and is urged toward the end of the frame remote from the screwdriver handle. A pair of jaws pivoted...
04/13/1976
 
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