Lock hold-back latch with anti-pick device

Details Lock hold-back latch with anti-pick device Lock hold-back latch with anti-pick device

1987-07-13

1989-07-18

Gall, Lloyd A.

Locks

Operating mechanism

Key

29216913, 29216917, 292346, E05B 1720

Patent

active

048481181

ABSTRACT:
Disclosed is an improvement in the lock mechanism described in U.S. Pat. No. 3,073,143. The improvement comprises barrier walls on the bolt which prevent a shim-type pick device from opening the lock mechanism. The barrier walls are positioned to prevent the pick device from tripping the locking member which locks the deadlock actuator in the locked position.

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patent: 2730391 (1956-01-01), Rayburn
patent: 2814196 (1957-11-01), Frank
patent: 3073143 (1963-01-01), Eads

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