Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Samuel Blaser0
Heinz Vogler0
Date of Patent
August 12, 2008
0Patent Application Number
115817990
Date Filed
October 16, 2006
0Patent Primary Examiner
Patent abstract
A direct acting hydraulic voting trip block defines three separate paths between an inlet and an outlet port. Each path is intersected by a valve cylinder. Valve pistons in each valve cylinder are configured, in the activated position, to block two of thee different paths. As long as at least two of the pistons are in the activated position, communication between the inlet and outlet ports is prevented.
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