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Class Information
Number: 251/193
Name: Valves and valve actuation > With means to increase head and seat contact pressure > Gate valve
Description: Devices applied to a gate valve to move its face element in a direction lateral to that of movement of a valve element carrier toward the valve seat.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7445019 |
Gate valve having service position |
Nov. 4, 2008 |
| 7441747 |
Vacuum gate |
Oct. 28, 2008 |
| 7424855 |
Slide arrangement |
Sep. 16, 2008 |
| 7422653 |
Single-sided inflatable vertical slit valve |
Sep. 9, 2008 |
| 7413162 |
Vacuum valve |
Aug. 19, 2008 |
| 7396001 |
Valve for essentially gastight closing a flow path |
Jul. 8, 2008 |
| 7341238 |
Device for locking out a pressurized storage container and method for the same |
Mar. 11, 2008 |
| 7322561 |
Vacuum processing apparatus |
Jan. 29, 2008 |
| 7296783 |
Vacuum processing apparatus |
Nov. 20, 2007 |
| 7198251 |
Opening/closing mechanism for vacuum processing apparatus and vacuum processing apparatus using the same |
Apr. 3, 2007 |
| 7134642 |
Vacuum gate valve |
Nov. 14, 2006 |
| 7073776 |
Sluicing valve device |
Jul. 11, 2006 |
| 7036794 |
Method for control of a vacuum valve arranged between two vacuum chambers |
May. 2, 2006 |
| 7007919 |
Slit valve method and apparatus |
Mar. 7, 2006 |
| 6994317 |
Regulating vacuum valve |
Feb. 7, 2006 |
| 6978980 |
Slide valve closure for the casting of a metal melt and a refractory plate unit belonging to it |
Dec. 27, 2005 |
| 6902145 |
Regulating slide valve |
Jun. 7, 2005 |
| 6893001 |
Gate valve apparatus |
May. 17, 2005 |
| 6863256 |
Seal ring for pendulum valve assembly |
Mar. 8, 2005 |
| 6764265 |
Erosion resistant slit valve |
Jul. 20, 2004 |
| RE38318 |
Bellows driver slot valve |
Nov. 18, 2003 |
| 6619618 |
Gate valve |
Sep. 16, 2003 |
| 6594017 |
Measuring sensor positioning |
Jul. 15, 2003 |
| 6488262 |
Gate valve for semiconductor processing system |
Dec. 3, 2002 |
| 6471181 |
Suspension of a valve plate of a vacuum valve |
Oct. 29, 2002 |
| 6454241 |
Gate valve and cylinder apparatus |
Sep. 24, 2002 |
| 6431518 |
Vacuum valve |
Aug. 13, 2002 |
| 6427973 |
Vacuum system with a vacuum plate valve |
Aug. 6, 2002 |
| 6425569 |
Gate valve |
Jul. 30, 2002 |
| 6390449 |
Gate valve |
May. 21, 2002 |
| 6318402 |
Pneumatic tank truck closure apparatus |
Nov. 20, 2001 |
| 6311949 |
Apparatus for operating water gate |
Nov. 6, 2001 |
| 6299133 |
Gate valve |
Oct. 9, 2001 |
| 6287051 |
Fixable seal sluice gate |
Sep. 11, 2001 |
| 6283446 |
Gate valve system |
Sep. 4, 2001 |
| 6283445 |
Gate valve and cylinder apparatus |
Sep. 4, 2001 |
| 6263542 |
Tolerance resistant and vacuum compliant door hinge with open-assist feature |
Jul. 24, 2001 |
| 6248220 |
Radio frequency sputtering apparatus and film formation method using same |
Jun. 19, 2001 |
| 6237892 |
Gate valve |
May. 29, 2001 |
| 6116572 |
Valve |
Sep. 12, 2000 |
| 6095741 |
Dual sided slot valve and method for implementing the same |
Aug. 1, 2000 |
| 6092786 |
Gate valve |
Jul. 25, 2000 |
| 6056267 |
Isolation valve with extended seal life |
May. 2, 2000 |
| 6056266 |
Device for closing an opening of a tank or a tubular conduit |
May. 2, 2000 |
| 6045117 |
Gate valve and cylinder apparatus |
Apr. 4, 2000 |
| 6035805 |
Method and apparatus for vacuum deposition of highly ionized media in an electromagnetic controlled environment |
Mar. 14, 2000 |
| 5975492 |
Bellows driver slot valve |
Nov. 2, 1999 |
| 5934646 |
Gate valve and cylinder apparatus |
Aug. 10, 1999 |
| 5769952 |
Reduced pressure and normal pressure treatment apparatus |
Jun. 23, 1998 |
| 5755426 |
Valve mechanism for a vacuum valve |
May. 26, 1998 |
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