Key guard

Details Key guard Key guard

1986-10-01

1988-05-03

Wolfe, Robert L.

Locks

Parts, attachments, accessories and adjuncts

For key-operated mechanism

70459, 70DIG55, A47G 2910

Patent

active

047411899

ABSTRACT:
A key guard comprises a key ring having an absent segment. A channel in the guard captures and restrains the ring to circular motion along its arc. A follower carries an interposer which intersects the channel under spring action of a spring means symmetrically positioned with respect to a central axis. The spring means may be a pair of compression springs, or a pair of spring arms acting on the follower. The ring and the key guard may be flat.

REFERENCES:
patent: 276826 (1883-05-01), Jopsa
patent: 1626987 (1927-05-01), Venegas
patent: 2615324 (1952-10-01), Meeker
patent: 2855775 (1958-10-01), Marien
patent: 3362201 (1968-01-01), Lachin
patent: 3635058 (1972-01-01), Polk
patent: 3776009 (1973-12-01), MacGhashan
patent: 4079607 (1978-03-01), Sproyt
patent: 4324121 (1982-04-01), Richter

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