Key with retractable pattern

Details Key with retractable pattern Key with retractable pattern

2006-05-02

2006-05-02

Meislin, Debra S (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Having work engaging and force exerting portion inserted...

C081S436000, C081S451000

Reexamination Certificate

active

07036405

ABSTRACT:
A key for operating a security fastener having a lock pattern includes a retractable key pattern. The key pattern has an operational extension position in which the key pattern is enabled for substantial engagement with a security fastener having a matching lock pattern, thereby allowing operation of the matching security fastener. The key pattern is also capable of retreating a non-operational retraction position in which the key pattern is not capable of substantial engagement with a security fastener having a non-matching lock pattern, thereby preventing operation of the non-matching security fastener.

REFERENCES:
patent: 2698637 (1955-01-01), Donovan
patent: 3288185 (1966-11-01), Clark
patent: 3739825 (1973-06-01), Knox
patent: 4130152 (1978-12-01), Bolen
patent: 4618299 (1986-10-01), Bainbridge et al.
patent: 4648293 (1987-03-01), McCauley
patent: 4848113 (1989-07-01), Parks
patent: 4875819 (1989-10-01), Wilkinson
patent: 6161456 (2000-12-01), Langford
patent: 2003/0165371 (2003-09-01), Notaro et al.

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