Pull-resistant cylinder lock

Details Pull-resistant cylinder lock Pull-resistant cylinder lock

1982-03-04

1984-01-10

Wolfe, Robert L.

Locks

Special application

For control and machine elements

70416, 2923363, E05B 6300

Patent

active

044246919

ABSTRACT:
Increased knob pull resistance in a cylinder lock is obtained by providing the knob sleeve with an inner lug which engages in a bayonet slot in the key-actuated rollback cam sleeve so as to transmit knob pull to the cam sleeve and through such sleeve and its out-turned rollback cam to the fixed hub. Preferably, the resulting increased pull resistance is combined with that provided by forming the knob sleeve with a small stud which rides in a groove in the hub to transmit pull directly from the knob sleeve to the hub.

REFERENCES:
patent: 2542117 (1951-02-01), Cerf
patent: 3955387 (1976-05-01), Best
patent: 4394821 (1983-07-01), Best

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