Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
July 28, 2009
Patent Application Number
11387989
Date Filed
March 23, 2006
Patent Primary Examiner
Patent 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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