Operating apparatus for casement windows
OwnerGary N. Brondfieldinventor
Life of this patent
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Abstract
A casement window low-profile operating apparatus comprises a winged hub having an aperture therein which is adapted to receive any of different size window operator crankshaft adapters. The crankshaft adapters themselves contain an aperture designed to fit the gear of a variety of window operator crankshafts. The handles may conveniently be supplied in the form of a package kit which includes a series of different size adapters, together with the hubs, allowing a correctly sized adapter to be selectively fitted to a particular window. The adapter is installed in the handle and the handle affixed to the crankshaft of the window operator where it can be operated without interfering with window accessories such as curtains, drapes, blinds and the like.
Claims12
A window operating apparatus for operating the crankshaft of a casement window operator, said apparatus comprising:
- a handle member having a central, smooth, cylindrical elongated hub portion which is symmetrical about a longitudinal axis and two solid, planar wing-like flanges extending from opposite sides of said hub portion, said flanges being coplanar to each other and with said longitudinal axis, said hub portion having a hub aperture extending thereinto from an end thereof, said hub aperture having a closed end, an opened end and an inner surface of predetermined configuration,
- inward extending shoulder means on said hub portion at the opened end of said hub aperture,
- an adapter with an outer surface dimensioned to mate with said inner surface of said hub aperture, said adapter being receivable in said hub aperture of said hub portion and non-rotatable therein, said adapter dimensioned to be retained completely within said hub aperture and to be confined therein by said shoulder means, said adapter having a longitudinal axis and an adapter aperture extending into said adapter from an end thereof, and
- a plurality of elongated splines extending from the interior surface of said adapter aperture, said splines being generally to the longitudinal axis of said adapter and dimensioned to matingly engage the crankshaft of a casement window operator whereby when said adapter is inserted in said hub aperture, said crankshaft can be inserted in said adapter aperture and rotated by turning said handle member.
A casement window operator apparatus comprising:
- a handle member having a central, elongated hub portion with two wing-like flanges extending from opposite sides thereof, said hub portion having a hub aperture extending thereinto from a first end thereof, said hub aperture including an opened end, a closed end and an inward projecting shoulder means at said opened end;
- at least one elongated adapter dimensioned to be received within said hub aperture and to be totally confined therein by said shoulder means, said adapter having a longitudinal axis and an adapter aperture extending into said adapter from an end thereof, wherein the exterior perimeter of a transverse cross-section of said adapter and the interior perimeter of a counterpart transverse cross-section of said hub aperture have substantially similar polygonal shapes, and
- a plurality of elongated splines extending from an interior surface of said adapter aperture, said splines being generally parallel to the longitudinal axis of said adapter and dimensioned to matingly engage splines on a crankshaft of a casement window operator, whereby when said adapter is inserted in said hub aperture, said crankshaft can be inserted in said adapter aperture and rotated by turning said handle member.
A window operating apparatus for operating the crankshaft of a casement window operator, said apparatus comprising:
- a handle member having an elongated, smooth, cylindrical central hub portion which is symmetrical about a longitudinal axis, and two flat, solid, planar wing-like flanges extending from opposite sides of said hub portion, said hub portion having a hub aperture extending thereinto from an end thereof, said hub aperture having a closed end, an opened end, and an inner surface of predetermined configuration,
- inward extending shoulder means on said hub portion at the opened end of said hub aperture,
- an adapter with an outer surface dimensioned to mate with said inner surface of said hub aperture, said adapter being receivable in said hub aperture of said hub portion and non-rotatable therein, said adapter dimensioned to be retained within said hub aperture and to be confined therein by said shoulder means, said adapter having a longitudinal axis and an adapter aperture extending into said adapter from an end thereof,
- a plurality of elongated splines extending from the interior surface of said adapter aperture, said splines being generally parallel to the longitudinal axis of said adapter, and dimensioned to matingly receive splines on the crankshaft of a casement window operator, and
- an opening in said hub portion extending through said closed end into said hub aperture.
Dependencies are inferred from the claim text.