Movable or removable closures – Operator interrelated with closure latch release – Motor driven
Patent
1994-08-15
1996-05-14
Kannan, Philip C.
Movable or removable closures
Operator interrelated with closure latch release
Motor driven
49276, 49300, 49340, E05F 1500
Patent
active
055156495
ABSTRACT:
A door operating system is disclosed which includes a remotely or manually controlled fluid supply system (10) which pressurizes a reciprocable striker release assembly (50), and activates an opening cylinder assembly (30) functionally mounted to a door (17) and door frame (18) for opening the door. Components of the door operating system include: an air compressor (11); a fluid pressure regulator (15) for ensuring, by virtue of a higher pressure, that the striker release assembly (50) is actuated in a timely manner with respect to the opening of the door due to activation of an opening cylinder (32) and for controlling the power and the speed that the door opens; a three-way solenoid valve (12), manually or remotely actuated, for releasing pressurized fluid to the opening cylinder (32) during the opening cycle and discharging fluid during the closing cycle thereby permitting closing of the door; a pair of clevis brackets (31,33), and a door frame bracket (35) for ease in installation of the opening cylinder (32); and a door closer ( 34) mounted on a side of the door opposite to the opening cylinder location.
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Kannan Philip C.
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