Abstract: A motorized window operator for opening and closing a window having a mechanical drive system including a rotatable drive axle. A housing contains a motor which is in operative engagement with a gear train having an output gear. The output gear is engageable with an engagement means mounted upon the drive axle of the window. For engaging the output gear train with the engagement means, operation of the motor will rotate the drive axle to either open or close the window according to desire. The gear train is dissengageable from the engagement means which at the same time dissengages power to the motor. The drive axle can then be manually operated.

Abstract: A motorized window blind operator is slidably received in a mounting bracket in the plane of the blind in a window frame. A motor in the operator housing normally opens and closes the blind but can be overridden by a manually operated gear train utilizing a screw driver extending through a hole in the inner window pane into engagement with a slotted hub on a gear in the housing. An upstanding flange on the housing overlaps with the adjacent blind slat to prevent light passing therethrough when the blind is closed. The housing has a V-shaped vertical end which receives the ends of the blind slats which have a similar shape for preventing light passage therebetween.

Abstract: Window operating apparatus includes a housing portion, a support portion, a drive portion, a power supplying portion and a mounting portion. The housing portion includes a base section and a cover member disposed over the base section including a top section and sidewall sections extending downwardly from peripheral edges thereof engageable with the base section. The support portion includes opposed upwardly extending end sections. The drive portion which is supported between the end sections and secured thereto includes a gear train disposed adjacent the top section, the gear train including meshing gear members rotatable in a plane substantially parallel to the top section. An electrical motor affixed below one end of the gear train adjacent the base section includes an output shaft extending upwardly from the motor and engaging one of the gear members in the gear train.