Valves and valve actuation – Heat or buoyancy motor actuated
Patent
1977-08-29
1979-05-29
Rosenthal, Arnold
Valves and valve actuation
Heat or buoyancy motor actuated
236 68R, 236101E, 338 22R, F16K 3102
Patent
active
041565185
ABSTRACT:
An electric vacuum valve comprising a body including a chamber having a first passage adapted to be connected to a source of vacuum, a valve seat in the chamber, a bi-metallic disc associated with the valve seat and operable to close the first passage and a second passage to the exterior of said body. A PTC disc is positioned in the chamber adjacent the bi-metallic disc and includes a first terminal connected to one side thereof and extending exteriorly of the body and a second terminal connected to the other side thereof and extending externally of the body such that heat from the PTC disc functions to radiate toward the bi-metallic disc when power is applied to said terminals to cause the bi-metallic disc to seat against the valve seat and when power is terminated, the bi-metallic disc cools and moves away from the valve seat.
REFERENCES:
patent: 1923882 (1933-08-01), Pickup
patent: 3583289 (1971-06-01), Wilson et al.
patent: 3804326 (1974-04-01), McIntire
patent: 3856259 (1974-12-01), Doherty, Jr.
patent: 3868620 (1975-02-01), McBride, Jr. et al.
patent: 3916264 (1975-10-01), Berg
patent: 4027848 (1977-06-01), Mundil
Rosenthal Arnold
Tom McGuane Industries, Inc.
LandOfFree
Electric vacuum valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Electric vacuum valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric vacuum valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-228921