Door or cover latch and latching system utilizing same

Details Door or cover latch and latching system utilizing same Door or cover latch and latching system utilizing same

1982-04-08

1984-12-25

Moore, Richard E.

Closure fasteners

Trippers

Spring-arm detent

E05C 312

Patent

active

044899661

ABSTRACT:
A latch for a door or cover associated with a wall or enclosure. A movable latch arm on the door or cover is spring biased to engage a projection on the wall or enclosure when the door or cover is closed. A blocking member on the door or cover is biased for movement into the path of movement of the arm to prevent its engagement of the projection. With the door or cover closed, the projection holds the blocking member out of the arm's path. Movement of the arm to disengage the projection and coupled with opening of the door or cover to separate the projection and the blocking member, results in the blocking member blocking the arm. Reclosure of the door or cover results in the blocking member being held out of the path of the arm which automatically re-engages the projection. The arm and the blocking member may be on the wall or enclosure and the projection may be on the door or cover. The latching system may include two or more projections, blocking members and arms, and the latter may be commonly movable. A latching system may also include facilities which prevent insertion of a lock shackle into a locking staple, which passes through the closed door, if the projection (or all projections) is not engaged by the arm (or arms).

REFERENCES:
patent: 711111 (1902-10-01), Kirk
patent: 976026 (1910-11-01), Beehler
patent: 1162121 (1915-11-01), Wright et al.
patent: 1864306 (1932-06-01), Hope
patent: 2218683 (1940-10-01), Miller
patent: 3065986 (1962-11-01), Barker et al.

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