Frost-proof exterior-wall valve
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United States of America Patent
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-
Jul 28, 2009
Grant Date -
Nov 30, 2006
app pub date -
Mar 23, 2006
filing date -
May 27, 2005
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A frost-proof valve includes a main valve. The main valve opens a fluid connection between an inflow opening and a discharge opening through a connecting channel in an open position and blocks the channel in a closed position. An actuating mechanism switches the main valve between the open position and the closed position. A drain drains the valve in the closed position and includes a bypass line connecting first and second channel sections.
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