Valve for controlling flow rate of gas
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 27, 2001
Grant Date -
N/A
app pub date -
Jun 15, 2000
filing date -
Jun 17, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A valve has a valve body having a passage including a hole in which gas flows, a valve seat surrounding a port of the hole. A valve disc is provided for closing the port of the hole, and an actuator is provided for operating the valve disc in a sine curve motion. The valve includes an inside heater for heating the valve disc.
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