Sliding door assembly with mullion lock

Details Sliding door assembly with mullion lock Sliding door assembly with mullion lock

1986-06-05

1987-09-08

Downey, Kenneth

Movable or removable closures

Mounted for multidirectional or oblique movement

Initial or terminal movement transverse to sliding movement...

49449, E05D 1510

Patent

active

046914749

ABSTRACT:
A sliding door panel is provided which moves bodily into and out of a recess so as to be closed or open, and when out of the recess it may be rolled sideways clear of the recess for ingress or egress therethrough. The moveable door panel is provided with a pair of crank shafts which carry crank arms, and one mounted so that rotation of a door handle causes rotation of the crank shafts and arms. The crank arms are each fixed at one end relative to the door, and at the other end relative to a track so as to cause the bodily movement of the door. The crank arms are also co-operatively associated with latch bars which enter latch slots at both the mullion and jamb sides of the door, so as to assure positive, intruder-proof latching of the door panel when closed.

REFERENCES:
patent: 3383798 (1968-05-01), Day
patent: 3660938 (1972-05-01), Ross, Jr. et al.
patent: 4317312 (1982-03-01), Heidemann
patent: 4384429 (1983-05-01), Rokicki et al.

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