Slit valve method and apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 7, 2006
Grant Date -
Oct 21, 2004
app pub date -
Apr 17, 2003
filing date -
Apr 17, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An actuator assembly for a slit valve door is configured to maintain a slit valve in a closed condition notwithstanding a high pressure differential between adjacent chambers that the slit valve isolates from each other. The slit valve door actuator assembly includes an actuator which moves the slit valve door between open and closed positions, and a locking mechanism to keep the slit valve door in a position to seal the slit valve in resistance to high gas pressure against the slit valve door. The locking mechanism may include a hard stop which is selectively movable into position to block retracting movement of the slit valve door.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully