Fluid supply shut off valve system and fluid monitoring device for use with same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16K-031/12
출원번호
US-0055838
(1998-04-06)
발명자
/ 주소
Dulac Lawrence M.
대리인 / 주소
Bourque & Associates, P.A.
인용정보
피인용 횟수 :
7인용 특허 :
16
초록▼
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 comprise
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.
대표청구항▼
[ What is claimed is:] [1.] A fluid supply shut off valve system, for use with a fluid storage tank fluidly coupled to a supply inlet, for supplying fluid to the fluid storage tank, and fluidly coupled to a system outlet, for drawing fluid from the fluid storage tank, said system comprising:a shut o
[ What is claimed is:] [1.] A fluid supply shut off valve system, for use with a fluid storage tank fluidly coupled to a supply inlet, for supplying fluid to the fluid storage tank, and fluidly coupled to a system outlet, for drawing fluid from the fluid storage tank, said system comprising:a shut off valve coupled to said supply inlet, for controlling the supply of fluid through said supply inlet to said storage tank, wherein said shut off valve is in a normally closed position, and wherein said shut valve opens to supply fluid to said storage tank as fluid is drawn through said system outlet; anda fluid monitoring device fluidly coupled to said supply inlet on both sides of said shut off valve, for monitoring a pressure differential between storage tank pressure in said storage tank and supply pressure in said supply inlet, and fluidly coupled to said shut off valve and to said system outlet, for opening and closing a fluid path between said shut off valve and said system outlet, wherein said fluid monitoring device is normally open when said storage tank pressure and said supply pressure are generally equalized, wherein said fluid monitoring device is closed automatically when said storage tank pressure drops to a predetermined pressure, and wherein said fluid path relieves pressure from said shut off valve allowing said shut off valve to open when said fluid monitoring device is opened and causing said shut off valve to remain closed when said fluid monitoring device is closed.
연구과제 타임라인
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이 특허에 인용된 특허 (16)
Risk Daniel W. (Whittier CA), Automatic control valve for a fluid system.
Studer Robert L. (6116 NE. 87th St. Redmond WA 98052) Schourup William E. (23234 NE. 54th Redmond WA 98053), Method and apparatus for valve assembly for a hot water tank.
Strzelczyk, Robert B.; Caroll, James; Zillig, Steven R.; Messecar, Sr., James D.; Lenartowicz, Michael A.; Stevely, Kip; Metz, Dan, Cooler bypass assembly.
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