ACTUATOR FOR CONTROLLING A FLUID FLOW
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United States of America Patent
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Issued Date -
May 10, 2012
app pub date -
Sep 27, 2011
filing date -
Sep 30, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The invention relates to an actuator (10) for controlling a fluid flow comprising a basic housing (12a) having an inlet (14) and an outlet (16), a valve seat (18) provided in the basic housing (12) between said inlet and said outlet (14, 16), a valve body (20) that can be operatively connected to the valve seat (18), a valve rod (22) for actuating said valve body (20) as well as means for actuating the valve rod (22). The invention is characterized in that an additional housing (12b) is mounted on said basic housing (12a) in a fluid tight manner and that the basic and additional housings (12a, 12b)—with the exception of the inlet and outlet (14, 16) form a completely sealed housing (12) that is closed on all sides and only includes one circumferential seal (24), and that said valve rod (22) is completely disposed inside said sealed housing (12) without any passage.
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