Door having improved closing and latching systems

Details Door having improved closing and latching systems Door having improved closing and latching systems

1979-02-23

1981-05-05

Kannan, Philip C.

Movable or removable closures

Thermal releaser or actuator

Fusible closure latch or retainer

49367, 49379, 49386, 49395, E05C 900, E05C 704

Patent

active

042650518

ABSTRACT:
A pair of doors hinged to a frame and including a self-locking three-point latch and coordinated closing system.

REFERENCES:
patent: 1184919 (1916-05-01), Bock
patent: 1515612 (1924-11-01), O'Connor
patent: 1870746 (1932-08-01), Pyle
patent: 2015996 (1935-10-01), Eichacker
patent: 2711565 (1955-06-01), Levin
patent: 3023068 (1962-02-01), Haag
patent: 3038569 (1962-06-01), Knox
patent: 3403954 (1968-10-01), Williams
patent: 3777423 (1973-12-01), Coulter et al.
patent: 3792556 (1974-02-01), Anghinetti et al.
patent: 3895461 (1975-07-01), Maynard, Jr. et al.

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