Operator for a casement-type window

Details Operator for a casement-type window Operator for a casement-type window

1979-05-31

1981-03-03

Kannan, Philip C.

Movable or removable closures

Mounted for multidirectional or oblique movement

Swings on plural axes; e.g., pivotal link arms

49260, 49342, 49345, E05D 1528

Patent

active

042532760

ABSTRACT:
An operator for a casement-type window sash which is mounted adjacent one edge thereof on slider structure for combined pivoting and linear movement comprising, a first structure for causing said combined pivoting and linear movement including a first linkage having an operating arm and a connecting link which is pivotally connected to the operating arm intermediate the ends thereof and also pivotally connected to said sash and a constraining link pivotally connected to a window sill and to the sash at a distance from said edge. A member mounted at an end of the operating arm at a distance from said pivotal connection to the connecting link and movable in an arc as the operating arm moves between window open and closed positions and a channel member mounted on the sash to extend lengthwise thereof and at a location to confine and be engaged by said member when the sash is either closed or partially open or at any position therebetween function to assist in closing and opening of the sash and holding the sash in a partially open position.

REFERENCES:
patent: 2366613 (1945-01-01), Hagstrom
patent: 2726082 (1955-12-01), Ziesmer
patent: 2824735 (1958-02-01), Stavenau et al.
patent: 2948027 (1960-08-01), Gill, Jr. et al.
patent: 2952882 (1960-09-01), Reynaud
patent: 3438151 (1969-04-01), Evers et al.

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