Trigger and latch bolt assembly

Details Trigger and latch bolt assembly Trigger and latch bolt assembly

1984-08-06

1987-07-14

Smith, Gary L.

Locks

Special application

For closures

70157, 70480, 29216913, 29216917, 292191, E05B 5500

Patent

active

046794166

ABSTRACT:
A lock mechanism includes a casing structure adapted to be mounted to one of a door and a door frame for cooperation with an apertured strike plate mounted to the other of the door and door frame. The lock mechanism further comprises a front plate for the casing structure with a pair of apertures therein and a latch bolt retractably mounted with respect to the casing structure and biased to an extended first position wherein a latching portion thereof extends from one of the front plate apertures for engagement with the strike plate aperture, and movable to a secnd retracted position. The latching portion of the latch bolt has a beveled leading surface located for engagement with the strike plate only when the latch bolt is moved a predetermined amount toward the retracted position. Retracting structure is operatively coupled with the latch bolt for effecting the predetermined amount of movement of the latch bolt toward said retracted position for effecting the desired positioning of the beveled leading surface thereof.

REFERENCES:
patent: 812871 (1906-02-01), Papenfoth
patent: 915536 (1909-03-01), Baker
patent: 1272915 (1918-07-01), Cleaver
patent: 1393911 (1921-10-01), Schumaker
patent: 1514528 (1924-11-01), Hurd
patent: 1706486 (1929-03-01), Gasey
patent: 2107300 (1938-02-01), Kilpatrick
patent: 2533023 (1950-12-01), Lickteig
patent: 2648560 (1953-08-01), Quigley et al.
patent: 2661972 (1953-12-01), Schlage
patent: 3999411 (1976-12-01), Kambic
patent: 4237711 (1980-12-01), Kambic

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