Valve element opening/closing device

Details Valve element opening/closing device Valve element opening/closing device

2011-04-12

2011-04-12

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Mechanical movement actuator

Cam

C251S253000, C251S129110, C137S607000

Reexamination Certificate

active

07922152

ABSTRACT:
A valve element opening/closing device may include a main body formed with a space, an inflow pipe and an outflow pipe which are connected to the main body, a valve element for opening and closing a flow passage, and a drive part for driving the valve element to open and close the flow passage. The valve element may be arranged on an inflow pipe side with respect an opening of the main body to which the inflow pipe is connected. The valve element is preferably arranged within the inflow pipe.

REFERENCES:
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patent: 5067359 (1991-11-01), Flaig et al.
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patent: 7475704 (2009-01-01), Hara et al.
patent: 2001-241825 (2001-09-01), None
patent: 2002-349740 (2002-12-01), None

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