Back to results
US 4,937,976 AGranted
Window operator and hinge structure
AssigneeTruth Incorporated
InventorsDaniel G. Tucker, Gregory J. Vetter
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeTruth Incorporated
InventorsDaniel G. Tucker, Gregory J. Vetter
Estimating the term…
A window operator and hinge structure for a casement window which can be simply factory pre-set for positioning of a window in either egress or wash modes, with switching between modes requiring no additional parts or special tools. The structure has a pivoted handle movable between a closed, inactive position flush with a sill cover and rotatable to an inclined, active position. The handle, in its pivoting movement, operates window locking structure and also controls the action of a brake, with release of the brake by raising of the handle to operative position. Motion-transmitting connections between the handle and linkage structure include the brake as well as the clutch, with the clutch effective to limit the torque that can be applied to the linkage. The handle can be moved to closed, inactive position with the window open so that no handle protrudes and this movement of the handle sets the brake so that a wind cannot move the window.
A window operator for a window having a window frame with a sill cover and a movable window sash comprising, linkage means connectable between the window frame and window sash and operable to cause movement of the window sash, rotatable handle means, motion-transmitting means between the handle means and the linkage means, said rotatable handle means comprising a handle having an inactive position flush with the sill cover and an active position inclined relative to the sill cover, and a hand knob pivotally mounted to the underside of the handle adjacent an end thereof for storage beneath the handle when the handle is in inactive position and movable to an operating position when the handle is in said active position.
A window operator and hinge structure for a casement or awning window comprising, a movable slider, links pivoted to said slider and connectable to a window sash for movement thereof as the slider moves, a rotatable handle having a closed position and an active position, motion-transmitting means between said rotatable handle and slider whereby handle rotation imparts movement to the slider, and said motion-transmitting means including a clutch and brake which are alternately operable dependent upon the rotatable handle being in either closed or active position.
A window operator and hinge structure for a casement or awning window having a frame and a window sash comprising, a first track mountable on the sill of the window frame and parallel to the plane of a closed window sash, a slider movable along said first track, a second track, first and second shoes on said second track, a link having opposite ends with one end pivotally connectable to the second shoe and the other end pivotally connected to said window sash, means pivotally connecting the window sash to the first shoe, link means for interconnecting said slider and the window sash including a first link pivoted at an end to said slider, second and third links pivoted at one of their ends to said first link at spaced-apart locations and at their other ends pivotally connectable to the window sash at spaced locations, the link means being constructed and arranged whereby movement of the slider away from one end of the first track causes the first link to move from a position generally paralleling the track toward a position generally perpendicular thereto and with the second and third links extending generally perpendicular to the window sash when the window sash is fully open.
Dependencies are inferred from the claim text.