US 7,621,295 B2Granted

System for controlling fluid flow to an appliance

OwnerMichael E. Reckinventor

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Abstract

A fluid isolation valve having a valve body with a first fluid flow port, a second fluid flow port and a fluid drain port with a valve in the fluid drain port. The valve body also defines a fluid flow channel, a drain flow channel and a valve portion, wherein the valve portion is disposed in the valve body to be communicated with the first fluid flow port, the second fluid flow port and the fluid drain port. A flow diversion device is also provided and is disposed within the valve portion. The flow diversion device is configurable between a first configuration and a second configuration, such that when the flow diversion device is in the first configuration the first fluid flow port is communicated with the second fluid flow port. Consequently, when the flow diversion device is in the second configuration the first fluid flow port is communicated with the fluid drain port. The fluid flow can be decrease or stop by use of the valve within the fluid drain port.

Claims9

Dependent claims

A system for isolating and controlling a flow of fluid comprising:

an appliance having an inlet port and an outlet port;
a first valve having a first flow port, a second flow port, and a drain port formed in a unitary valve body, said first flow port of said first valve in fluid communication with a fluid source and said second flow port said first valve in fluid communication with said inlet port of said appliance, said first valve being configurable between a first and second position in the unitary valve body, when said first valve is in said first position said fluid source is in fluid communication with said appliance and when said first valve is in said second position said appliance is in fluid communication with said drain port of said first valve;
and
a second valve having a first flow port, a second flow port and a drain port formed in a unitary valve body, said first flow port of said second valve in fluid communication with said outlet port of said appliance and said second flow port of said second valve in fluid communication with a plumbing system, the second valve being configurable between a first and second position in the unitary valve body, when the second valve is in said first position said appliance is in fluid communication with said plumbing system and when said second valve is in said second position said appliance is in fluid communication with said drain port of said second valve.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 11/927,045Filed 29 Oct 2007 · continuation
Priority: 23 Sep 2003
Published: US 2008/0142103 A119 Jun 2008
Granted: 24 Nov 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

F16K 11/0873
With spherical plug: the plug being only rotatable around one spindle
F16K 5/0605
With plugs having spherical surfaces; Packings therefor: with particular plug arrangements, e.g. particular shape or built-in means
F16K 11/0876
The plug being only rotatable around one spindle: one connecting conduit having the same axis as the spindle
Y10T 137/0318
Fluid handling: processes

Family

Application60/505,193Us provisional application · filed 23 Sep 2003
Application10/573,094Parent of this continuation · filed 18 Dec 2006
US 2008/0142103 A1Pre-grant publication · published 19 Jun 2008
US 2007/0169827 A1Published application
US 7,681,596 B2Related patent
US 7,621,295 B2This patent

From the US filing history. Foreign family members aren’t listed.