Self-forming socket

Details Self-forming socket Self-forming socket

1997-04-03

1998-08-11

Smith, James G.

Tools

Wrench, screwdriver, or driver therefor

Attachment, or including adjunct or replaceable portion

81DIG11, B25B 1358

Patent

active

057912092

ABSTRACT:
A self-forming socket having a plurality of retractable pins bundled in parallel within a housing is disclosed. The bundled pins may displace longitudinally and are biased by spring force away from a frame onto which the pins are slidably held. A spacer pin may be positioned at the center of the socket and is similarly biased away from the frame under spring force. When the socket is forced over a fastener, nut, or bolt head, groups of pins are pushed inward toward the frame and into the housing thereby conforming the pins to the contours of the fastener. Applying a torque to the socket transfers the torque through the bundled pins to the fastener. Each pin has a circular cross-section and the interior walls of the housing containing the bundled pins has a hexagonal shape and does not contain any right angles. The pins are packed in a hexagonal arrangement.

REFERENCES:
patent: 3674070 (1972-07-01), Mahoney
patent: 3698267 (1972-10-01), Denney
patent: 4887498 (1989-12-01), Zayat
patent: 5287778 (1994-02-01), Cook
patent: 5460064 (1995-10-01), Zayat, Jr.

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