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Class Information
Number: 220/203.13
Name: Receptacles > Closures > With condition responsive vent or valve > Responsive to pressure > Flexible, resilient vent closing member > Stopper-type vent closure
Description: Device wherein said flexible member comprises a flexible plug engaged in a vent opening in the closure, said plug being deformable in response to pressure within or without a receptacle.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7255354 |
Gas-permeable plug and method for manufacturing the same |
Aug. 14, 2007 |
| 7201287 |
Drum vent |
Apr. 10, 2007 |
| 7048136 |
Canister lid with improved evacuation and vent assembly |
May. 23, 2006 |
| 6994699 |
Port, a container and a method for accessing a port |
Feb. 7, 2006 |
| 6883675 |
Drum vent |
Apr. 26, 2005 |
| 6729362 |
Sealing grommet |
May. 4, 2004 |
| 6669060 |
Air intake valve arrangement |
Dec. 30, 2003 |
| 6491176 |
Sealing valve |
Dec. 10, 2002 |
| 6478178 |
Fermentation lock for wine barrel |
Nov. 12, 2002 |
| 6058966 |
Plastic safety valve for containers |
May. 9, 2000 |
| 5944211 |
Container system including an air evacuation valve |
Aug. 31, 1999 |
| 5743424 |
Sealable container |
Apr. 28, 1998 |
| 5702018 |
Positive seal fermentation lock for wine barrels |
Dec. 30, 1997 |
| 5609264 |
Sealing and venting means for disinfection apparatus |
Mar. 11, 1997 |
| 5609837 |
Disinfection apparatus |
Mar. 11, 1997 |
| 4889693 |
Apparatus for venting of gases from contact lens cases |
Dec. 26, 1989 |
| 4787409 |
Rupture pin valve system |
Nov. 29, 1988 |
| 4724868 |
Cap with valve |
Feb. 16, 1988 |
| 4662533 |
Safety valve device for enclosed cells |
May. 5, 1987 |
| 4658979 |
Propellant filling and sealing valve |
Apr. 21, 1987 |
| 4191806 |
Pressure vent for a sealed primary cell |
Mar. 4, 1980 |
| 4143787 |
Captivated over-pressure relief air vent assembly |
Mar. 13, 1979 |
| 4075398 |
Means of providing pressure relief to sealed galvanic cell |
Feb. 21, 1978 |
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