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Class Information
Number: 220/203.29
Name: Receptacles > Closures > With condition responsive vent or valve > Responsive to pressure > One-way, outwardly venting pressure relief valve
Description: Device wherein the vent or valve provides for flow of the pressure medium in only one direction.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7228789 |
Beverage container |
Jun. 12, 2007 |
| 7228875 |
Seal and bleed valve unit for electric batteries |
Jun. 12, 2007 |
| 7214311 |
Filter cartridge with check valve protection |
May. 8, 2007 |
| 7154069 |
Cooking apparatus and methods of employing such apparatus |
Dec. 26, 2006 |
| 7108147 |
Vacuum pump valve |
Sep. 19, 2006 |
| 7090090 |
Container for microwave oven cooking |
Aug. 15, 2006 |
| 7074443 |
Vented can overcap |
Jul. 11, 2006 |
| 6877629 |
Food storage device |
Apr. 12, 2005 |
| 6776301 |
Cap with one-way de-gas feature |
Aug. 17, 2004 |
| 6732878 |
Venting lid apparatus for tank opening |
May. 11, 2004 |
| 6669047 |
Button actuated pressure released and locking devices for pressure cookers |
Dec. 30, 2003 |
| 6662827 |
Overpressure relief valve for packaging container |
Dec. 16, 2003 |
| 6648162 |
Button actuated pressure release and locking device for pressure cookers |
Nov. 18, 2003 |
| 6609630 |
Leak-proof closure apparatus |
Aug. 26, 2003 |
| 6491176 |
Sealing valve |
Dec. 10, 2002 |
| 6478178 |
Fermentation lock for wine barrel |
Nov. 12, 2002 |
| 6435367 |
Closing cap for motor vehicle radiator |
Aug. 20, 2002 |
| 6349842 |
Cover fastenable on a container connection |
Feb. 26, 2002 |
| 6173855 |
Tank closing device for a filler neck of a container |
Jan. 16, 2001 |
| 6158606 |
Pressure setting value for a pressure-cooker |
Dec. 12, 2000 |
| 6058966 |
Plastic safety valve for containers |
May. 9, 2000 |
| 6042852 |
Low pressure refrigerated dough product |
Mar. 28, 2000 |
| 5890620 |
Automatically sealing cup |
Apr. 6, 1999 |
| 5819976 |
Closure having self-venting, sealed promotion compartment |
Oct. 13, 1998 |
| 5743424 |
Sealable container |
Apr. 28, 1998 |
| 5702018 |
Positive seal fermentation lock for wine barrels |
Dec. 30, 1997 |
| 5570730 |
Spill resistant fuel cap and ventilation system |
Nov. 5, 1996 |
| 5564584 |
Vent cap for discharging nearly empty propane cylinders |
Oct. 15, 1996 |
| 5547694 |
Container for refrigeratable yeast-leavened doughs |
Aug. 20, 1996 |
| 5540347 |
Vent valve assembly for a fuel tank filler neck cap |
Jul. 30, 1996 |
| 5520209 |
Fluid relief device |
May. 28, 1996 |
| 5480054 |
Brew-through cap for thermal container |
Jan. 2, 1996 |
| 5246027 |
Cargo tank relief valve with sudden surge protection |
Sep. 21, 1993 |
| 5169016 |
Method and apparatus for selectively sealing and pouring liquid from a container |
Dec. 8, 1992 |
| 5121858 |
Pressure relief system |
Jun. 16, 1992 |
| 5048400 |
Pressure cooker with sensor |
Sep. 17, 1991 |
| 5011035 |
Pressure regulating system for use in pressure cookers and pressure cooker having the same |
Apr. 30, 1991 |
| 4799508 |
Pressure regulating valve for presure cooker |
Jan. 24, 1989 |
| 4773572 |
Hand-held dispenser with automatic venting |
Sep. 27, 1988 |
| 4625899 |
Hand-held dispenser with automatic venting |
Dec. 2, 1986 |
| 4561558 |
Vent cover |
Dec. 31, 1985 |
| 4560143 |
Pressure cooker relief valve assembly |
Dec. 24, 1985 |
| 4495147 |
Heat-retarding closure system for pressure relief openings of partitions, in nuclear reactor buildings |
Jan. 22, 1985 |
| 4479460 |
Pressure-vacuum cooling system for internal combustion engine utilizing reservoir |
Oct. 30, 1984 |
| 4478178 |
Pressurization device for the cooling system of a heat engine |
Oct. 23, 1984 |
| 4296186 |
Two part pressure relief valve |
Oct. 20, 1981 |
| 4147096 |
Breather vent for vapor vent valve |
Apr. 3, 1979 |
| 3999571 |
Pressure relief valves |
Dec. 28, 1976 |
| 3949781 |
Exhaust valve |
Apr. 13, 1976 |
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