Tools – Wrench – screwdriver – or driver therefor – Stud-removal and implacement
Patent
1995-01-13
1996-07-09
Kisliuk, Bruce M.
Tools
Wrench, screwdriver, or driver therefor
Stud-removal and implacement
81179, B25B 1312
Patent
active
055334261
ABSTRACT:
The tool has a socket with an opening leading to a cavity with a plurality of straight inner side walls spaced about a longitudinal axis. A plurality of wedge shaped jaws equal in number to the plurality of inner side walls are removably located in the cavity. Each jaw has a straight outer beating surface, and an inner gripping surface. Spaced apart opposite end wall member with central openings are provided for slidably supporting the jaws for movement between closed and open positions along straight paths with each bearing surface engaging an inner side wall of the socket when the jaws are located in the cavity. Guides are provided for guiding the jaws for movement along their straight paths. Springs are provided for normally urging the jaws to their closed positions and allowing a threaded member to be inserted between the jaws. The jaws are held in the cavity such that when a threaded member is located between the jaws, rotation of the socket in given direction causes the side walls of the socket to apply rotational torque to the outer beating surfaces of the jaws to cause the gripping surfaces of the jaws to grip and rotate the threaded member. The jaws may be reversed in position to allow the tool to unscrew or screw a threaded member from or into a threaded aperture.
REFERENCES:
patent: 1169551 (1916-01-01), McCroba
patent: 5315902 (1994-05-01), Ragland et al.
Danganan Joni B.
Kisliuk Bruce M.
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