VALVE SYSTEM
First Claim
1. A valve system for protecting a fluid flow device from pressure comprising:
- a housing;
an first flow path extending through said housing, said first flow path including a first inlet and a first outlet, said first outlet in fluid communication with the fluid flow device;
a second flow path extending through said housing, said second flow path including a second inlet and a second outlet, said second inlet in fluid communication with the fluid flow device;
a check valve, wherein said check valve prevents fluid flow from said housing through said second inlet; and
a shutoff valve within said housing capable of being switched between an open position and a closed position, said open position allowing fluid flow through said first flow path and said second flow path, said closed position prohibiting fluid flow through said first flow path supply flow path.
1 Assignment
0 Petitions
Accused Products
Abstract
A valve system enables use of a standard single line faucet with a water treatment system, protects water treatment systems and other fluid flow devices from unnecessary fluid pressure, and regulates or prevents fluid flow to a dispenser or outlet in response to a particular event, such as a leak. The valve system includes a housing having ports for: (1) receiving a supply fluid, (2) supplying the fluid to a device, such as a water treatment system, (3) receiving the fluid from the device and (4) supplying fluid to a dispenser. The valve system also includes an automatic shutoff device within the housing that prevents water from flowing into the housing and the water treatment system when the dispensing outlet is closed and that allows water to flow through the housing and into the water treatment system when the outlet is open. The valve system may also include a second actuator connected to the automatic shutoff that is capable of moving the automatic shutoff to a partially or fully closed position.
85 Citations
20 Claims
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1. A valve system for protecting a fluid flow device from pressure comprising:
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a housing; an first flow path extending through said housing, said first flow path including a first inlet and a first outlet, said first outlet in fluid communication with the fluid flow device; a second flow path extending through said housing, said second flow path including a second inlet and a second outlet, said second inlet in fluid communication with the fluid flow device; a check valve, wherein said check valve prevents fluid flow from said housing through said second inlet; and a shutoff valve within said housing capable of being switched between an open position and a closed position, said open position allowing fluid flow through said first flow path and said second flow path, said closed position prohibiting fluid flow through said first flow path supply flow path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for operating a valve system comprising:
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providing a housing defining a first flow path and a second flow path; providing a shutoff valve within said housing, said shutoff valve operable to move between an open position allowing fluid flow through said first flow path and said second flow path and a closed position preventing fluid flow through said first flow path; connecting a fluid supply to said first flow path; connecting said first flow path to said second flow path; moving said shutoff valve as a function of the pressure differential between said first flow path and said second flow path; and providing a second actuator connected to said housing; and moving said shutoff valve with said second actuator. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A valve system comprising:
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a valve housing defining a first flow path having a first inlet and a first outlet, and a second flow path having a second inlet and a second outlet, said valve housing including a shutoff valve within said housing, said shutoff valve capable of moving between an open position in which fluid can flow through said first flow path and said second flow path and a closed position in which fluid is prevented from flowing through said first inlet, said shutoff valve moving from said open position to said closed position as a function of the pressure differential between said first flow path and said second flow path; and a second actuator connected to said housing, said second actuator including a drive element operably connected to said shutoff valve such that movement of said drive element causes movement of said shutoff valve. - View Dependent Claims (17, 18, 19, 20)
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Specification