Automatic operator and locking mechanism for a closure

Details Automatic operator and locking mechanism for a closure Automatic operator and locking mechanism for a closure

1982-11-15

1985-02-05

Downey, Kenneth

Movable or removable closures

Operator interrelated with closure latch release

Motor driven

49252, E05F 1500

Patent

active

044971354

ABSTRACT:
An automatic operator and locking mechanism for a casement window or the like having window locking structure including a movable tie bar which is moved to both lock and unlock the window, a window hinge mounting the window for opening and closing movement, an operator arm operatively connected to the window and a rotatable lead screw connected to the operator arm for movement thereof, planetary gearing having two alternately operable output connections structurally connected one to said tie bar and one to said lead screw, a motor for driving said planetary gearing and a trigger member for sensing the open or closed position of the window and operable when the window is open to hold the tie bar against movement whereby drive of the planetary gearing causes closing movement of the window.

REFERENCES:
patent: 1724011 (1929-08-01), Flagg
patent: 2136812 (1938-11-01), Carnahan
patent: 2256613 (1941-09-01), Forman et al.
patent: 2366613 (1945-01-01), Hagstrom
patent: 2538980 (1951-01-01), Payne, Jr.
patent: 3081078 (1963-03-01), Lohr
patent: 3145988 (1964-08-01), Colautti et al.
patent: 3154302 (1964-10-01), Maruyama
patent: 3202414 (1965-08-01), Simmons et al.
patent: 3274732 (1966-09-01), Murakami
patent: 3653154 (1972-04-01), Hayday
patent: 4333269 (1982-06-01), Bascou

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