Fluid handling – Line condition change responsive valves – Pilot or servo controlled
Patent
1998-04-06
2000-02-08
Ferensic, Denise L.
Fluid handling
Line condition change responsive valves
Pilot or servo controlled
137599, 251297, 251331, F16K 3112
Patent
active
060218088
ABSTRACT:
A water supply shut off valve system is used with a fluid storage tank, such as a hot water heater, to automatically shut off a fluid supply to the storage tank as a result of a pressure drop in the storage tank caused, for example, by a leak or rupture. A fluid supply shut off valve system comprises a shut off valve, such as a normally closed diaphragm valve, coupled to a supply inlet, for controlling the supply of fluid through the supply line to the storage tank. The shut off valve system further comprises a fluid monitoring device (FMD) fluidly coupled to the supply line and to the shut off valve, for monitoring the tank pressure and causing the shut off valve to remain closed when the tank pressure drops to ambient pressure. The FMD generally includes a body portion having a passageway and an actuation mechanism disposed in the passageway for opening and closing a fluid path through the FMD. When the actuation mechanism is in the normally open position, pressure is relieved from the shut off valve through the fluid path, allowing the valve to open and close. When the actuation mechanism is in the closed position as a result of a pressure drop, the shut off valve will remain closed.
REFERENCES:
patent: 2868492 (1959-01-01), Volcov et al.
patent: 2921597 (1960-01-01), Parr
patent: 3078066 (1963-02-01), Moore
patent: 3768497 (1973-10-01), Mueller
patent: 4000754 (1977-01-01), Risk
patent: 4305420 (1981-12-01), Nussdorf
patent: 4691726 (1987-09-01), Studer et al.
patent: 4909274 (1990-03-01), Rodriguez
patent: 5007364 (1991-04-01), Buckle
patent: 5024254 (1991-06-01), Yamagiwa
patent: 5060630 (1991-10-01), Boals
patent: 5117863 (1992-06-01), McGarrah
patent: 5143258 (1992-09-01), Mittermaier
patent: 5169291 (1992-12-01), Zebuhr
patent: 5240022 (1993-08-01), Franklin
patent: 5301919 (1994-04-01), May
patent: 5421365 (1995-06-01), Matsuo et al.
patent: 5425396 (1995-06-01), Wodeslavsky
patent: 5439028 (1995-08-01), Meyer et al.
patent: 5738333 (1998-04-01), Cognevich et al.
Farid Ramyar
Ferensic Denise L.
LandOfFree
Fluid supply shut off valve system and fluid monitoring device f does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fluid supply shut off valve system and fluid monitoring device f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid supply shut off valve system and fluid monitoring device f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1673903