Quick release mechanism for tools such as socket wrenches

Details Quick release mechanism for tools such as socket wrenches Quick release mechanism for tools such as socket wrenches

2002-10-10

2008-07-15

Hail, III, Joseph J. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C081S177200, C081S177800, C081S177850

Reexamination Certificate

active

07398713

ABSTRACT:
A tool of the type having a drive stud for receiving and releasing a tool attachment includes an opening in the drive stud and a locking pin movably mounted in the opening. The opening defines first and second ends, and the first end of the opening is located at a portion of the drive stud constructed for insertion into the tool attachment. An actuating member is movably positioned on the drive stud, and the actuating member defines a sliding surface that engages the pin. A first spring biases the sliding surface toward the pin, and a second, weaker spring biases the pin toward the sliding surface. The first spring reacts against a ring that is disposed between the spring and a shoulder formed on the tool. The shoulder extends away from the longitudinal axis of the drive stud by a lesser distance than the spring or the ring.

REFERENCES:
patent: 3011794 (1961-12-01), Vaughn
patent: 4571113 (1986-02-01), Coren
patent: 4768405 (1988-09-01), Nickipuck
patent: 4848196 (1989-07-01), Roberts
patent: 4938107 (1990-07-01), Nickipuck
patent: 5644958 (1997-07-01), Roberts et al.
patent: 5813296 (1998-09-01), Hoff et al.
patent: 5911800 (1999-06-01), Roberts et al.
patent: 6182536 (2001-02-01), Roberts et al.
International Search Report for International Application No. PCT/US02/32633 dated Jan. 15, 2003.

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