Electrical window operator

Details Electrical window operator Electrical window operator

1995-02-10

1996-07-16

Kannan, Philip C.

Movable or removable closures

With operator for movably mounted closure

49140, 49141, E05F 1100

Patent

active

055355510

ABSTRACT:
An electrical window operator for opening and closing a window comprises at least one arm connected pivotally and detachably in a first end with a sash coupling member slidable side within a limited part of the length of the sash, said arm being pivotally connected at the other end with a second coupling member connected with the main frame. An operator housing arranged at the main frame accommodates an elongate drive shaft with a threaded section engaged by a nut element forming part of the second coupling member and an electrical drive unit in axial extension of the drive shaft.

REFERENCES:
patent: 2698173 (1952-09-01), Rydell
patent: 2811349 (1957-10-01), Bondurant et al.
patent: 2899195 (1959-08-01), Ahlgren
patent: 4068799 (1978-01-01), Brodin
patent: 4553656 (1987-11-01), Lense
patent: 4617758 (1986-10-01), Vetter
patent: 4866882 (1989-09-01), Cappello
patent: 4929019 (1990-05-01), Paakkonen et al.
patent: 5097629 (1992-03-01), Guhl et al.

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