E - Fixed Constructions – 05 – F
Patent
E - Fixed Constructions
05
F
268/23
E05F 15/02 (2006.01) E05F 15/06 (2006.01) E05F 15/14 (2006.01)
Patent
CA 1321219
ABSTRACT PNEUMATIC DOOR OPERATOR HAVING NOVEL PNEUMATIC ACTUATOR AND LOCK A power door operator for transit vehicles utilizing a rodless pneumatic cylinder (10) to open and close doors (2,3) in the sidewall of a vehicle. Door movement having a controlled door edge force is achieved through coupling an external piston (11) of the cylinder and vehicle doors through belt (16). Magnetic coupling between internal and external pistons of the cylinder provide force having breakaway value applied to the operated door. A novel lock (30, 31, 32, 33) operated by admission of air to the cylinder (10) latches or unlatches the door in its closed position subsequent or prior to door closing or opening. Control of door motion at the ends of its travel is achieved through the use of a novel differential area (10a) in the cylinder. Piston force is modified for positions approaching either end of the cylinder using a sliding rod (40) contained by the piston (10a). Movement of the rod modifies available force.
593281
Bayard Robert G.
Walsh Anthony J.
Baker Harold C.
Vapor Canada Inc.
LandOfFree
Pneumatic door operator having novel pneumatic actuator and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumatic door operator having novel pneumatic actuator and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumatic door operator having novel pneumatic actuator and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1295887