Fastener having recess useable with multiple drivers and...

Details Fastener having recess useable with multiple drivers and... Fastener having recess useable with multiple drivers and...

2005-01-18

2005-01-18

Tolan, Ed (Department: 3725)

Threaded, headed fastener, or washer making: process and apparat

Process

Making externally threaded fastener, e.g., screw or bolt

C470S009000, C470S011000

Reexamination Certificate

active

06843729

ABSTRACT:
A fastener is described having a head formed with a recess which accommodates a square head driver, symmetrical drivers, such as PHILLIPS™ style drivers, asymmetrical style cross head drivers, such as POZIDRIV® style drivers, and combination square and cross drivers without compromising performance of the drivers.

REFERENCES:
patent: 2046839 (1936-07-01), Phillips et al.
patent: 2082748 (1937-06-01), Brown
patent: 2474994 (1949-07-01), Tomalis
patent: 3028781 (1962-04-01), Muenchinger
patent: 3108623 (1963-10-01), Muenchinger
patent: 3237506 (1966-03-01), Muenchinger
patent: 3238540 (1966-03-01), Muenchinger
patent: 3858261 (1975-01-01), Uozumi
patent: 3972083 (1976-08-01), Dreger
patent: 4089357 (1978-05-01), Gill
patent: 4126908 (1978-11-01), Gill
patent: 4151621 (1979-05-01), Simmons
patent: 5020954 (1991-06-01), Dreger
patent: 5203742 (1993-04-01), Grady
patent: 5358368 (1994-10-01), Conlan et al.
patent: 5364212 (1994-11-01), Gill
patent: 5674037 (1997-10-01), Lu
patent: 6223634 (2001-05-01), Hughes et al.
patent: 6234914 (2001-05-01), Stacy
patent: 6314840 (2001-11-01), Bozonnet
patent: 6584876 (2003-07-01), Totsu
patent: 2 092 253 (1992-08-01), None

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