Abstract: A window operator handle foldable between an operable position for manual pivoting and a storage position, including a body with a manually graspable portion at one end and a recess in the other end, and a base including a longitudinal cylindrical portion having a central bore extending completely through the base. The handle body recess is defined by side walls spaced a selected width, a top wall, and a wall at one end oriented substantially parallel to the operator drive shaft when the handle is in the operable position, with the base cylindrical portion having an outer diameter slightly less than the selected width. An operator drive shaft is securable in the base bore so that the an outer end of the drive shaft is substantially adjacent the handle body when the handle is in a storage position. The handle base is secured for pivoting relative to the handle body about an axis substantially orthogonal to longitudinal whereby in the storage position the base is substantially within the handle body recess.

Abstract: A window operator and lock structure for controlling a window sash relative to a window frame, including a drive input securable to a frame and engaging both an operator linkage securable to a window sash to effectuate motion of a secured sash relative to a frame, and a lock linkage securable to a lock structure for locking a secured sash to a frame. A link in the lock linkage moves in a generally longitudinal direction when operating the lock structure and includes a substantially transverse slot. A cam is pivotable about a cam axis fixed relative to the frame and includes a member receivable in the link slot to block operation of the lock linkage. The sash when closed against the frame includes a member engaging the cam to pivot the cam in a first direction moving the cam member clear of the link slot. The cam is blocked from pivoting when the sash is closed by engagement of the cam member with a side surface of the lock linkage link.

Abstract: A housing assembly for a window operating assembly having a drive shaft and drive shaft boss having recesses on opposite sides thereof. The housing assembly includes a cover having a top side with an opening therethrough and sides depending from the top side to define an interior and an exterior. The cover is open on the interior for receiving a portion of the window operating assembly including a drive shaft boss portion with a portion of the drive shaft extending through the top side opening to the exterior. The depending sides having outer edges mateable with a window operating assembly to maintain alignment of the cover with a substantial portion of the operating assembly housed by the cover. A discrete connecting member is secured to the cover interior and includes an oblong opening with a narrow portion having a radial dimension less than that of the drive shaft boss.

Abstract: A window operator including a first sun gear, a first drive gear including a drive gear portion and a ring gear portion, a manual worm drive operatively connected to the drive gear portion, a planetary gear carrier, a first set of planetary gears carried between the first sun gear and the ring gear portion, and an operable connection between the gear carrier and a window sash whereby pivoting of the gear carrier operates the sash. A first ring gear is drivably connected to pivot with the first sun gear, and a second ring gear is fixed with respect to the window frame. A second set of planetary gears has first and second axially spaced gear segments, the first gear segments being disposed between a motor driven sun gear and one of the ring gears, and the second gear segments drivably engaging the other of the ring gears. The ring gears and/or the gear segments have different numbers of teeth.

Abstract: A lock for grasping a keeper to lock a window sash and window frame together including a base housing with a longitudinal opening therethrough and defines a pivot axis positioned between the ends of the opening, and a locking handle secured to the housing for pivoting about the pivot axis and including a handle portion extending from the one side of the housing opening and a grasping portion extending from the other side of the housing opening. The housing has a first shoulder facing one side of the housing opening and extending about the opening associated with one end and a second shoulder facing the other side of the opening and extending about the opening associated with the other end. A first handle shoulder abuts against the first housing shoulder when the locking handle is in a locking position, and a second handle shoulder is disposed adjacent to and overlapping with the second housing shoulder when the locking handle is in a locking position.

Abstract: A cover and folding handle assembly for rotating the drive input member of a window operator to open and close a window, including a handle base drivingly engaging the drive input member and an elongate handle having a first end pivotally connected to the handle base so that the handle is movable between an extended position in which the handle is operable to rotate the drive input member and a folded storage position in which the handle overlies the handle base. An opening in the second end of the handle is aligned with an opening in a knob, and an axial pin has a first end received in one of the aligned openings and a second end received in the other of the aligned openings. A rotatably fixed end of the pin is frictionally secured in one of the openings, and the other pin end is received in a sleeve frictionally secured in the other opening and securing a pin head in that opening. The cover has an opening through which the drive input member on the window operator extends.

Abstract: A track securable to a window sash for guiding the roller of a window operator having an operator arm selectively pivotable relative to a window frame to move the sash relative to said frame, the arm having the roller at its distal end. The track includes two substantially parallel spaced longitudinal walls connected by a longitudinal wall substantially perpendicular to and extending between the parallel walls, an operator roller being receivable between the parallel walls. An integral stop is stamped in the connecting wall, and includes a non-planar portion angled at one end from the connecting wall into the space between the parallel walls, and an arcuate end surface extending in a direction substantially perpendicular to the path of roller travel from the other end of the non-planar portion to substantially adjacent the connecting wall.

Abstract: An apparatus for selectively securing a window sash to a window frame, including a longitudinally extending jamb liner secured to the frame adjacent one side of the sash, and a movable cam between the frame and the liner for selectively adjusting the spacing therebetween. Frictional locking surfaces are provided between the liner and the sash whereby the cam in a locking configuration biases the liner away from the frame and thereby against the sash to frictionally lock the sash against movement relative to the liner. The liner defines a portion of the track guiding the sash for substantially planar movement and the cam may also be selectively moved to a releasing configuration allowing the liner to sufficiently approach the frame to allow the sash to be cleared from the liner.

Abstract: An apparatus for both manual and powered operation of the sash of a double hung window, including a drive belt adjacent one side of the sash, a power drive for the belt, and a pulley carried with the sash and engaging the belt. Two ratchets having wheels with oppositely facing inclined teeth and pawls biased into engagement with the wheel of the respective ratchet through a connecting shaft secure the pulley against pivoting in either direction to effectively lock the pulley relative to the engaged belt. A ratchet housing is disposed in a sash recess and has a D-shaped opening on one end adjacent a cylindrical opening to the pulley. A bushing for the ratchet shaft is received in the sash cylindrical opening and includes a D-shaped flange receivable through an annular opening in the housing whereby twisting of the bushing misaligns the flange with a suitable tab to secure the bushing in the sash cylindrical opening.

Abstract: An operator for controlling movement of a window sash relative to a window frame, including a drive gear pivotable about a central axis substantially perpendicular to one side of the window frame and drivably linked to move the sash, a connector defining first and second pivot axes intersecting at a point and rotatable around the intersection point, a worm pivotable about an axis substantially perpendicular to the central axis and drivably engaging a portion of the drive gear by a helical thread having variable height peaks lying in an annular orientation substantially conforming to the annular orientation of the drive gear portion, and a drive input shaft rotatable about a shaft axis intersecting the worm axis at an angle. The worm, connector and drive shaft are secured whereby the connector is pivotable relative to the worm about the first pivot axis and the connector is pivotable relative to the drive shaft about the second pivot axis.

Abstract: A pivotal connection between a handle and a housing including a pivot defining member biased outwardly into frictional contact with concentric openings in a handle and housing. The member includes a sleeve portion with an outer diameter O.sub.S substantially equal to or less than the diameter of the housing and handle openings, the sleeve portion further including a tubular opening having a selected inner diameter I.sub.S. The member further includes a longitudinally extending pin portion circumscribed by a reference cylinder having a diameter D.sub.C and an end section inscribing a reference cylinder having a diameter D.sub.I, where D.sub.I .ltoreq.I.sub.S <D.sub.C <O.sub.S, Circumferentially disposed connecting segments project radially outwardly from the pin portion end section and are breakably secured to the sleeve portion.

Abstract: A universal electrical control selectively drives either plural motorized window operators for opening or closing one or more windows, or a motorized window operator and plural motorized locks for opening, closing and locking a window. The electrical control comprises an interface circuit for connection to plural output devices comprising either motorized window operators or motorized window locks. An input switch commands window movement to an open or close position. A control circuit is connected to the interface circuit and the input switch and includes an initialization mode for determining if each output device is a motorized window operator or a motorized lock, and output drive mode operable in response to a command from the input switch for driving the output devices through the interface circuit in a lock sequence or a window sequence dependent upon the initialization mode respectively determining if a motorized window lock is connected or is not connected to the interface circuit.

Abstract: A motorized operator drive is used with a window having a fixed frame and a movable sash, and a manually driven window operator mounted to the frame. The window operator includes an operator shaft rotatable to drive a linkage mechanism fastened to the sash to selectively move the sash relative to the frame to open or close the window. The drive comprises a housing having a motor end and an opposite nose end. A motor is mounted in the housing at the motor end and has an output shaft. A gear set is mounted in the housing including an input gear driven by the motor shaft and an output gear at the nose end. An adaptor is operatively engaged with both the output gear and the operator shaft to rotate the operator shaft in response to energization of the motor. A bracket is fixedly mounted to the window frame. A rubber grommet resiliently mounts a stud at the housing motor end to the bracket to provide isolation between the drive and the window.

Abstract: A latch for selectively connecting a sash of a double-hung window to a slide track in a window frame, including a lever including a gear at one end, a latch housing mountable to the sash, the housing including means for pivotally supporting the lever, and a locking member movable between a locked position securing the sash to the track and an unlocked position releasing the sash from the track. The locking member includes a tongue projecting from the latch housing when the tilt latch is in the locked position and lying within the latch housing when the tilt latch is in the unlocked position, and a rack engaging the lever gear to move the locking member to locked and unlocked positions in response to pivoting of the lever. The lever gear includes a disk formed along one side, and the locking member includes a channel along the rack receiving the disk during pivoting of the lever.