Valves and valve actuation – Lost motion between actuator and valve
Reexamination Certificate
2007-09-21
2010-06-01
Bastianelli, John (Department: 3753)
Valves and valve actuation
Lost motion between actuator and valve
C251S129110, C251S228000, C251S229000, C251S298000
Reexamination Certificate
active
07726627
ABSTRACT:
A damper device may include a frame, a baffle turnably supported on the frame for opening and closing a passage through which fluid is passed, and a drive unit for turnably driving the baffle. The drive unit may include an output member whose tip end side structures a slide mechanism together with the baffle, and a driving part which causes the output member to linearly advance and retreat to and from the baffle. The slide mechanism includes a groove formed in one of a tip end side of the output member and the baffle so that the groove is extended to move the baffle, and a slider part provided in the other so that the slider part is fitted into the groove, and the groove is formed in which at least one of both end portions of the groove is formed in an open end.
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Bastianelli John
Cantor & Colburn LLP
Nidec Sankyo Corporation
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