Fluid-pressure and analogous brake systems – Releasing – Control pipe
Patent
1989-04-19
1990-07-10
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Releasing
Control pipe
251 66, 251248, 303 68, 303 86, B60T 1704
Patent
active
049402927
ABSTRACT:
A motor driven ball valve may be driven in two modes of operation; those modes are a normal or testing mode and an emergency mode. The ball valve, when in its full open position, has an air passage that allows for the rapid exhaust of air in the air pipe of the air brake system to atmosphere, thereby inducing the emergency application of the brakes. The rotating ball valve assembly is capable of infinite variation between its full closed and its full open positions. Thus, the motor drive, which is remotely controlled, can effectively modulate the reduction in air pressure in the air pipe for a variety of purposes, including normal operation of the brakes and testing the air brake system. The motor drive mechanism may be in a cam, gear, or follower configuration. When an emergency application of the brakes is required, the motor drive mechanism is disengaged to allow a spring or other torsion device to rapidly rotate the ball to full open position, while drawing minimal electrical power. The spring or other torsion mechanism is prestressed by the operation of the motor driven mechanism as it rotates the ball toward its closed position.
REFERENCES:
patent: 2048353 (1936-07-01), Rose
patent: 2937907 (1960-05-01), Harris et al.
patent: 3606980 (1971-09-01), Simpson et al.
patent: 3811456 (1974-05-01), Nelson
patent: 4044996 (1977-08-01), Kodaira
patent: 4326754 (1982-04-01), Harding
patent: 4487060 (1984-12-01), Pomeroy
patent: 4596265 (1986-06-01), Goodell
patent: 4641892 (1987-02-01), Schmid
Bezos Angel P.
Egerton Gary W.
Butler Douglas C.
Pulse Electronics, Inc.
LandOfFree
Rapid release valve mechanism does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rapid release valve mechanism, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rapid release valve mechanism will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1717735