Abstract: The disclosure describes a latch retaining device to maintain the latch of a door in an inoperable position, which includes at least one body member adapted to engage and grip the door knob of the door so as to retain the door knob in its latch releasing rotated position indefinitely. The body member of the device may have first and second ends with the first end thereof adapted to frictionally engage the door adjacent the position of the door knob, whereby frictional engagement between the device and the door as well as the door knob enable the door knob to be maintained in a position to render the door latch inoperative. Alternatively, the body member may frictionally engage a door knob and exert an appropriate force thereon to maintain it in a latch releasing position. The at least one body member is secured in its frictionally engaging position by means of a cincturing strap associated with the body member.

Abstract: The invention relates to an automatic remote controlled opening device which may be used to open and close doors, windows or similar closure systems. The opening device includes a receiver to detect control signals generated at a remote location from the device. The control signals are then utilized to effect selective operation of a mechanical system coupled with the closure system for opening and closing thereof. The mechanical system enables smooth and efficient automatic opening and closing, but does not inhibit manual operation of the door or the like. Control circuitry associated with the device enables various functions to be performed for selective operation of the device. The device may also be provided with a stored energy source of power such that it can be retrofit for use with an existing closure system. Auxiliary control of the device enables opening or closing in response to an emergency situation or other circumstances.

Abstract: The invention relates to an automatic remote controlled opening device which may be used to open and close doors, windows or similar closure systems. The opening device includes a receiver to detect control signals generated at a remote location from the device. The control signals are then utilized to effect selective operation of a mechanical system coupled with the closure system for opening and closing thereof. The mechanical system enables smooth and efficient automatic opening and closing, but does not inhibit manual operation of the door or the like. Control circuitry associated with the device enables various functions to be performed for selective operation of the device. The device may also be provided with a stored energy source of power such that it can be retrofit for use with an existing closure system. Auxiliary control of the device enables opening or closing in response to an emergency situation or other circumstances.