| |
 |
|
Class Information
Number: 251/328
Name: Valves and valve actuation > Reciprocating valve > Gate > Seats
Description: Devices comprising the substantially stationary valve element with which the head cooperates to produce the valving action.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7628381 |
Method for replacing seals in recreational vehicles gate valves without removing valve housing from plumbing |
Dec. 8, 2009 |
| 7600528 |
Double-disk slide valve |
Oct. 13, 2009 |
| 7600739 |
Compartmentalized electric/manual gate valve |
Oct. 13, 2009 |
| 7469717 |
Fail safe shutter for use with a cross-stack monitor |
Dec. 30, 2008 |
| 7458559 |
Bi-directional knife gate valve apparatus and method |
Dec. 2, 2008 |
| 7448595 |
Shut-off fitting |
Nov. 11, 2008 |
| 7422653 |
Single-sided inflatable vertical slit valve |
Sep. 9, 2008 |
| 7350766 |
Knife gate valve with multi-piece elastomer liner and/or o-rings at flange interface |
Apr. 1, 2008 |
| 7325783 |
Valve seat edge relief profile |
Feb. 5, 2008 |
| 7306201 |
Gate valve with tongue and groove or bridging seal to annular seat elements |
Dec. 11, 2007 |
| 7225827 |
Insertion valve and installation method |
Jun. 5, 2007 |
| 7100893 |
Gate valve |
Sep. 5, 2006 |
| 7059586 |
Knife gate valve having elastomeric gate and chest seals |
Jun. 13, 2006 |
| 7011294 |
Vacuum valve |
Mar. 14, 2006 |
| 7000899 |
Shutoff device |
Feb. 21, 2006 |
| 6929244 |
Interference-fit seal for gate valves |
Aug. 16, 2005 |
| 6923423 |
Small bore gate valve |
Aug. 2, 2005 |
| 6837483 |
Gate valve assembly |
Jan. 4, 2005 |
| 6817593 |
Slide gate valve for powder and granular material |
Nov. 16, 2004 |
| 6776184 |
Insertion valve and installation method |
Aug. 17, 2004 |
| 6745999 |
Gate valve for high-density slurries, and a valve body assembly, and a solids-containing wall lining means therefor |
Jun. 8, 2004 |
| 6705340 |
Emergency gas and electricity shutoff apparatus and control system |
Mar. 16, 2004 |
| 6685163 |
Vacuum valve |
Feb. 3, 2004 |
| 6663079 |
Resilient seat gate valve |
Dec. 16, 2003 |
| 6629682 |
Vacuum valve |
Oct. 7, 2003 |
| 6612537 |
Cartridge gate valve |
Sep. 2, 2003 |
| 6591869 |
Multiport gate valve assembly |
Jul. 15, 2003 |
| 6588729 |
Packing box arrangement for a gate valve |
Jul. 8, 2003 |
| 6588728 |
Modified isbester (MI) flow control gate valve |
Jul. 8, 2003 |
| 6470907 |
Existing pipe cut-off method, existing pipe slitting method, piping structure, and valve insertion method for inserting a valve in a line without stopping passage of water or fluid |
Oct. 29, 2002 |
| 6422535 |
Knife gate valve |
Jul. 23, 2002 |
| 6409149 |
Dual pendulum valve assembly with valve seat cover |
Jun. 25, 2002 |
| 6375157 |
Slide valve |
Apr. 23, 2002 |
| 6354568 |
Sliding plate valve |
Mar. 12, 2002 |
| 6318402 |
Pneumatic tank truck closure apparatus |
Nov. 20, 2001 |
| 6279875 |
Gate valve with improved telescoping seat assembly |
Aug. 28, 2001 |
| 6260822 |
Seat assembly for a gate valve |
Jul. 17, 2001 |
| 6240986 |
Recreational vehicle sanitary sewer connector |
Jun. 5, 2001 |
| 6199870 |
Seal |
Mar. 13, 2001 |
| 6116572 |
Valve |
Sep. 12, 2000 |
| 6010115 |
Cavityless gate valve |
Jan. 4, 2000 |
| 5979874 |
Split knife gate valve having a uniformly compressed and constrained resilient gate seat and method for producing the same |
Nov. 9, 1999 |
| 5909867 |
Closing assembly for a chamber having a through-opening |
Jun. 8, 1999 |
| 5836570 |
Gate valve seat |
Nov. 17, 1998 |
| 5762320 |
Seat for gate valve |
Jun. 9, 1998 |
| 5735501 |
Valve arrangement |
Apr. 7, 1998 |
| 5732930 |
Valve having tee slot attachments in service area |
Mar. 31, 1998 |
| 5732728 |
Valve insertion method and assembly for inserting a valve in a line |
Mar. 31, 1998 |
| 5730419 |
Dual backseat valve assembly |
Mar. 24, 1998 |
| 5727775 |
Gate valve with dual seal rings on a unitary seat ring |
Mar. 17, 1998 |
|
|
|
