Fastener installation tool

Details Fastener installation tool Fastener installation tool

2005-11-01

2005-11-01

Meislin, Debra S (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

C081S057140

Reexamination Certificate

active

06959625

ABSTRACT:
An improved fastener installation tool is provided of the type having a fixture pin for seated reception into a mating recess at the shank end of a threaded fastener, while a power-driven socket installs a threaded nut onto the fastener shank. The installation tool incorporates a simplified spring-loaded clutch assembly including a dual function spring member for urging the fixture pin axially forwardly relative to the power-driven socket, whereby the fixture pin slidably retracts against the applied spring force as the nut is threaded onto the fastener shank. The spring member additionally urges a cam pin into normal engagement with a lobed cam wheel carried by the fixture pin for normally preventing fixture pin rotation, but wherein the cam pin retracts to accommodate limited fixture pin rotation in response to a torque overload condition thereby protecting the fixture pin against deformation or breakage.

REFERENCES:
patent: 2882773 (1959-04-01), Wing
patent: 3247741 (1966-04-01), Batten
patent: 3397601 (1968-08-01), Batten
patent: 5109735 (1992-05-01), Hart
patent: 5305666 (1994-04-01), LaTorre
patent: 5553519 (1996-09-01), Pettit, Jr.
patent: 5699702 (1997-12-01), Myers
patent: 5778741 (1998-07-01), Batten

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