Thermostat valve
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United States of America Patent
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-
Sep 9, 2014
Issued Date -
N/A
app pub date -
Nov 5, 2009
filing date -
Nov 6, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A valve fitted with a housing which comprises at least two mutually apart coolant hookups, and a thermally expansible device, including a housing and a push-rod and resting on the housing and operating in concert with a valve element that in turn operates in concert with an annular valve seat, said valve seat being situated between the two hookups, and a spring that biases the valve element toward the valve seat, wherein the valve element is in the form of an annular valve disk made by two-part injection molding, where one annular sealing portion is made of an elastomeric plastic and the remaining valve disk is made of a hard plastic, the outer sealing portion cooperating with the valve seat and the inner sealing portion cooperating in a sealing manner with a housing of the thermally expansible device.
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