Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Patent
1975-01-29
1976-11-23
Cohan, Alan
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
137415, 137416, 251 65, F16T 120
Patent
active
039930904
ABSTRACT:
In an automatic valving device, the combination comprises a container, an exhaust valve mounted in a lower portion of the container, an arrangement for actuating the exhaust valve, a pilot valve mounted in an upper portion of the container and coupled to the actuating arrangement, and an elongated guideway extending generally between the pilot valve and the exhaust valve. A float is movably mounted on the guideway and is operatively coupled to the pilot valve. The float is movable along a length of the guideway between an upper pilot valve opened position and a lower pilot valve closing position. Magnetic members are mounted on the guideway and the float respectively. At least one of the magnetic members is magnetized, and the magnetic members are shaped for magnetically attractive engagement therebetween. The magnetic members are disposed so as to effect such engagement at the lower float position to provide a snap action for the float upon removal of the float from its lower position toward its upper position.
In a specific arrangement, a valve closure for the pilot valve can be provided with an assymmetric portion so that the valve closure is removed with a prying action to multiply the mechanical advantage of the valving device. In another arrangement the upper and lower float positions are sufficiently and spatially separated so that the float impactingly engages the pilot valve closure adjacent the upper position of the float to enhance the mechanical advantage of the valving device.
REFERENCES:
patent: 925153 (1909-06-01), Barry
patent: 2998825 (1961-09-01), Gleason et al.
patent: 2999509 (1961-09-01), Hankison et al.
patent: 3418789 (1968-12-01), Hoffman et al.
patent: 3447562 (1969-06-01), Hoffman
patent: 3834415 (1974-09-01), Herron
Cohan Alan
Michalsky Gerald A.
Smith Donn J.
LandOfFree
Automatic valving device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automatic valving device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automatic valving device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-226603