Power door opener
OwnerWilliam Hickersoninventor
Life of this patent
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Abstract
A power door opener including an actuator having a housing with an electrically powered actuator shaft that can be extended from a closed to an extended position. In one embodiment, a movable push plate is affixed to the actuator shaft and a fixed push plate is fixed in its position with respect to the housing. In the closed position of the actuator shaft, the fixed and movable push plates are aligned to form a combined edge for insertion into the space between a door and door jamb. The actuator shaft extends to move the movable push plate apart from the fixed push plate to spread the space and release the door from the door jamb. Alternatively, a double ended power door opener is located between opposite door jambs and the extending of the actuator shaft forces the door jambs apart to release the door from the door jamb.
Claims8
A double ended power door opener comprising a power actuator having a front side and a rear side, a actuator shaft extendable from the front side of the power actuator, the actuator shaft being movable between a closed position and an extended position wherein the actuator shaft is extended outwardly and an electric motor adapted to move the actuator shaft between its closed and extended positions, a movable push plate affixed to the actuator shaft, an extension extending outwardly from the rear side of the actuator, the extension having a distal end wherein the distal end of the extension and movable push plate are moved apart by the outwardly extending movement of the actuator shaft, wherein the extension is removable affixed to the rear side of the power actuator.
A method of forcing open a door by separating opposite vertical door jambs comprising the steps of:
- providing a double ended power door opener comprising a power actuator having a front side and a rear side, an actuator shaft located at the front side being movable between a closed position and an extended position wherein the actuator shaft is extended outwardly and an electric motor adapted to move the actuator shaft between its closed and extended positions, a movable push plate affixed to the actuator shaft, an extension extending outwardly from the rear side of the actuator, the extension having a distal end, positioning the double ended power door opening between opposite door jambs with the extension contacting one door jamb and the movable push plate contacting the other door jamb, and moving the actuator shaft to its extended position to move the movable push plate away from the fixed push plate, thereby widening the opening between the door and the door jamb to release the door from the door jamb, wherein the step of providing a double ended power door opener comprises providing at least two extensions and further including the steps of selecting one extension from the at least two extensions and attaching the selected extension to the rear side of the power actuator.
Dependencies are inferred from the claim text.