Device for opening and closing a passage orifice present in a housing
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Oct 20, 2005
app pub date -
Feb 25, 2005
filing date -
Feb 26, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A device for opening and closing a passage orifice provided in a housing, the housing having a supply duct leading to the passage orifice and a discharge duct following the passage orifice, with a closing body which opens and closes the passage orifice and determines the throughflow quantity of a heating medium which is provided for heating a medium which surrounds the device, the closing body being activated by an actuation element which comprises a thermal head having a space filled with a gaseous medium and closed by means of a diaphragm.
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