Mechanical arm system for opening a door

Details Mechanical arm system for opening a door Mechanical arm system for opening a door

2007-06-28

2011-12-13

Mitchell, Katherine (Department: 3634)

Movable or removable closures

With operator for movably mounted closure

Operating lever or link and closure swing about parallel axes

C049S339000, C049S341000, C049S344000

Reexamination Certificate

active

08074401

ABSTRACT:
A mechanical arm system for opening a door includes an actuator assembly having an output shaft and an arm driven by the output shaft so as to move the door from a closed position toward an open position. The arm is free from contact with the door when the door moves from the open position to the closed position. The actuator assembly is mounted to a support member adjacent the door. The arm extends between the output shaft and the door. The arm may be moveable between a position in which the arm contacts the door in the open position and a retracted position in which the arm is free from contact with the door in the closed position. The arm may be moved to the retracted position before the door reaches the open position so as to abort the opening of the door.

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