Nonpickable lock

Details Nonpickable lock Nonpickable lock

1976-01-30

1978-04-25

Wolfe, Robert L.

Locks

Operating mechanism

Key

70377, 70419, E05B 2902

Patent

active

040856011

ABSTRACT:
A nonpickable lock device comprising a housing, a plug rotably mounted in said housing and having an axially extending keyway, tumblers, disposed for reciprocal movement within cross bores formed in said plug for blocking rotation of said plug unless a properly bitted key is inserted in the keyway, and tumbler biasing means mounted in clearance slots formed in said plug in registry with said tumblers.

REFERENCES:
patent: 1906701 (1933-05-01), Mexwell
patent: 1965889 (1934-07-01), Fitzgerald
patent: 3035433 (1962-05-01), Testa

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