Door hinge coupling device

Details Door hinge coupling device Door hinge coupling device

1976-03-25

1977-11-15

Larkin, G. V.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Sash balances

Spring

E05D 1100

Patent

active

040578739

ABSTRACT:
Projections in door hinge plates penetrate and bear against cooperating slots in opposite plates of door hinges to prevent a locked door from being removed from a doorjamb by removing the hinge pintles.

REFERENCES:
patent: 905201 (1908-12-01), Magnnsen
patent: 1391304 (1921-09-01), Dowling
patent: 1612656 (1926-12-01), Salin
patent: 1895495 (1933-01-01), Steele
patent: 1923721 (1933-08-01), Glenn
patent: 2797432 (1957-07-01), Gakle
patent: 2810152 (1957-10-01), Bruno
patent: 3510906 (1970-05-01), Baldwin

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