Locking arrangement for sliding doors

Details Locking arrangement for sliding doors Locking arrangement for sliding doors

1983-04-05

1984-10-09

Kannan, Philip C.

Movable or removable closures

Bipartite, center opening

Sliding closures

49449, 292DIG39, 292DIG46, 292101, 292 42, E06B 342

Patent

active

044753136

ABSTRACT:
Sliding doors of increased strength, stability and resistance to the elements include on the normally inactive sliding door panel top and bottom vertical axis locking bolts which engage in apertures at the top of the door frame and sill. An intermediate level swinging bolt on the active sliding door panel is used in conjunction with an adjacent anti-lift tab also on the active sliding door panel. This tab and the locking extension of the swinging bolt are received in apertures formed in the adjacent stile of the inactive door panel to achieve secure locking of the sliding panels in closed positions. All of the bolts of the system are disposed within the opposing interfitting vertical stiles of the active and inactive sliding panels adjacent to tongue and groove portions thereof. The locking arrangement can be utilized on sliding door systems containing four or more panels.

REFERENCES:
patent: 3048435 (1962-08-01), DeMarco
patent: 3774342 (1973-11-01), Thom
patent: 3870353 (1975-03-01), Miller
patent: 3877739 (1975-04-01), Cowen
patent: 4315648 (1982-02-01), Labelle

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