Valves and valve actuation – Detachable actuator
Reexamination Certificate
2007-10-19
2010-10-12
Fristoe, Jr., John K (Department: 3753)
Valves and valve actuation
Detachable actuator
C251S129010, C251S326000, C251S129030, C137S899000
Reexamination Certificate
active
07810786
ABSTRACT:
In combination with an external actuator for electrically operating a gate valve for use with a recreational vehicle, a gate valve within a housing, a flow passageway, a valve closure member moveable transversely of the flow passageway to cause the passageway to open and close. The valve closure member comprises a valve stem and a connected handle. Also provided is an electrical control unit with a motor, an electrical drive means and a drive shaft to engage the handle. A switch means electrically connected to the control unit has an on and off position. In the on position, the actuator lifts the handle to move the gate and open the flow passageway. In the off position, the actuator retracts the handle to move the gate linearly to close the flow passageway. Also provided is a releasable ring pin which confines the handle and which, when removed, enables the manual override of the external actuator.
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Beaumont Gitlin Tash-Jian
Fristoe, Jr. John K
Gitlin, Esq Larry F.
Tietjen Marina
Valterra Products Inc.
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