Fluid handling – Line condition change responsive valves – Pilot or servo controlled
Patent
1998-03-26
1999-08-03
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
Pilot or servo controlled
137613, 137494, 251297, 91284, F16K 3102
Patent
active
059311878
ABSTRACT:
A valve system for starting/restarting an oscillating controller of the type that uses a source of pressurized gas to provide controlled pulses of the pressurized gas to a pump, such as a chemical injector pump. The start/restart valve includes a valve element that is closed by a valve spring when the pressure of the pressurized gas source drops below a predetermined minimum and is opened upon the pressure increasing to a second predetermined pressure higher than the predetermined minimum pressure to thereby provide a higher pressure for starting or restarting the oscillating movement of the controller. The start/restart valve includes a detent mechanism for maintaining the valve element in either the open or closed position until the gas pressure reaches the appropriate pressure level for switching to the opposite position. The opening of the valve element may be caused by the gas pressure being applied directly to the valve element or indirectly through a diaphragm in alternate embodiments. In still another embodiment, the start/restart valve system includes a solenoid valve that is operated in response to a pressure sensor that determines the pressures at which a solenoid valve is opened and closed electrically.
REFERENCES:
patent: 795003 (1905-07-01), Oeling
patent: 2276435 (1942-03-01), Thompson
patent: 2733729 (1956-02-01), Wolfe
patent: 3216329 (1965-11-01), Peterson
patent: 3387563 (1968-06-01), Williams
patent: 4079660 (1978-03-01), Ives
patent: 5567393 (1996-10-01), Muschelknautz et al.
Farid Ramyar
Ferensic Denise L.
Williams Instrument Incorporated
LandOfFree
Valve system for restarting oscillating controller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Valve system for restarting oscillating controller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Valve system for restarting oscillating controller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-840670