Power door opener
AssigneeSnap-on Incorporated
InventorWilliam Hickerson
Life of this patent
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AssigneeSnap-on Incorporated
InventorWilliam Hickerson
Estimating the term…
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 to force open the door.
A power door opener comprising:
A method of opening a door using a power door opener having an electric power actuator, an actuator shaft extendable from the power actuator and being selectively movable between closed and extended positions, and an electric motor adapted to move the actuator shaft between the closed and extended positions, the method comprising:
Dependencies are inferred from the claim text.