Automatic deadbolt

Details Automatic deadbolt Automatic deadbolt

1983-01-27

1985-12-31

Dorner, Kenneth J.

Closure fasteners

Bolts

Sliding

292333, E05B 6320

Patent

active

045616841

ABSTRACT:
A deadbolt door lock assembly wherein the deadbolt is automatically mechanically actuated with door closure for security. Door closure actuates a trigger mechanism that releases a deadbolt restraining means to allow a biased deadbolt to be thrown to extended lock condition.

REFERENCES:
patent: 228323 (1880-06-01), Crandal
patent: 361247 (1887-04-01), Winchester
patent: 562077 (1896-06-01), Hasshagen
patent: 858905 (1907-07-01), Passino
patent: 887354 (1908-05-01), Sterrett
patent: 1302873 (1919-05-01), Stiff
patent: 1403128 (1922-01-01), Segal
patent: 1816134 (1931-07-01), Wood
patent: 1919763 (1933-07-01), Allen
patent: 2438346 (1948-03-01), Mooney
patent: 4061383 (1977-12-01), Waldo
patent: 4262504 (1981-04-01), Inoue
patent: 4478444 (1984-10-01), Kurz et al.

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