Movable or removable closures – With operator for movably mounted closure – Operator drives closure along guide
Patent
1989-04-07
1990-01-16
Kannan, Philip C.
Movable or removable closures
With operator for movably mounted closure
Operator drives closure along guide
49139, 49280, 49449, E05F 1514
Patent
active
048934356
ABSTRACT:
An opener for a sliding panel closure of a wall opening has a toothed belt horizontally disposed between a toothed sprocket and an arcuate grooved shoe located within a threshold plate extending across the opening adjacent a channel strip within which the panel slides. A bracket attaches the panel to the belt which moves the panel between closed and open positions by a shaft coupled through an electrical clutch between the sprocket and a motor. A solenoid driven armature raises and lowers a pin relative to the sprocket teeth to lock panel movement. A handle and latch provides override to unlock the panel for manual operation. The motor, clutch, solenoid and all other electrical components are separately housed marginally of the opening, at a location above the threshold to protect them from water.
REFERENCES:
patent: 2334198 (1943-11-01), Ackley
patent: 3403474 (1968-10-01), Spasoff
patent: 3890744 (1975-06-01), Galis
patent: 4330960 (1982-05-01), Hasemann et al.
patent: 4503637 (1985-03-01), Parente
patent: 4674231 (1987-06-01), Radek et al.
patent: 4738052 (1988-04-01), Yoshida
Franz Warren L.
Kannan Philip C.
Remote-A-Matic, Inc.
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