Rotary door latch

Details Rotary door latch Rotary door latch

1976-02-23

1977-07-19

Moore, Richard E.

Closure fasteners

Bolts

Swinging

E05C 1902

Patent

active

040365174

ABSTRACT:
A latch carried by a door is rotatable about a vertical axis. The rotary latch member has a portion which engages a stationery striker plate on the door jamb which rotates the latch as the door moves to the closed position. Rotation of the latch causes a notch in the latch to engage either side of a post in the striker plate. The latch member continues to rotate until the door is fully closed by the interaction of the post with the notch. A releasable detent member locks the rotary latch against further rotation in either direction when the door reaches the fully closed position.

REFERENCES:
patent: 469313 (1892-02-01), Wright
patent: 1711213 (1929-04-01), Smith
patent: 1785914 (1930-12-01), Riel
patent: 2830843 (1958-04-01), Seaburg et al.
patent: 2848263 (1958-08-01), Miller

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