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Class Information
Number: 220/203.28
Name: Receptacles > Closures > With condition responsive vent or valve > Responsive to pressure > Two-way pressure relief valve
Description: Device wherein the vent or valve provides for flow of the pressure medium in two or more directions.










Patents under this class:

Patent Number Title Of Patent Date Issued
8684215 Fuel cap Apr. 1, 2014
8657140 Filler cap for fuel tank Feb. 25, 2014
8596481 Clutch oil reservoir cap Dec. 3, 2013
8464915 Dispensing cap with automatic valve for containers for transporting and dispensing liquid or creamy substances Jun. 18, 2013
8353418 Pressure relief cap Jan. 15, 2013
8292103 Container closure Oct. 23, 2012
7753225 Valve assembly Jul. 13, 2010
7690525 Screw cap Apr. 6, 2010
7654403 Fuel tank vacuum-relief system Feb. 2, 2010
7543715 Vehicle fuel cap with axial longitudinal grooves in casing body Jun. 9, 2009
7353965 Closure cap provided with anti-twisting Apr. 8, 2008
7191912 Brake fluid reservoir with improved venting Mar. 20, 2007
7104415 Sealing cap Sep. 12, 2006
RE38991 Motor vehicle fuel cap inlet and outlet vent apparatus Feb. 28, 2006
6913036 Bi-directional flow seal for a fuel vapor pressure management apparatus Jul. 5, 2005
6866161 Fueling device of fuel tank Mar. 15, 2005
6745914 Cap device Jun. 8, 2004
6732882 No-spill cover assemly for a drink container May. 11, 2004
6688336 Sealing terminal for tubular duct Feb. 10, 2004
6619497 Apparatus for venting a container containing fluid Sep. 16, 2003
6446826 Seal for filler neck closure assembly Sep. 10, 2002
RE37776 Closure assembly for a tank filler neck Jul. 2, 2002
6390318 Sealed container May. 21, 2002
6367644 Sealing cap Apr. 9, 2002
6364145 Motor vehicle fuel cap inlet and outlet vent apparatus Apr. 2, 2002
6273286 Ventilating system Aug. 14, 2001
6260726 Over/underpressure valve for a filler neck cap assembly Jul. 17, 2001
5996830 Fuel tank cap Dec. 7, 1999
5971180 Sealing plug cap for a sealing container Oct. 26, 1999
5944211 Container system including an air evacuation valve Aug. 31, 1999
5908129 Plastic vent valve for containers Jun. 1, 1999
5732840 Closure assembly for a tank filler neck Mar. 31, 1998
5730183 Valve for venting a container Mar. 24, 1998
5649639 Vented container for flowable media Jul. 22, 1997
5480054 Brew-through cap for thermal container Jan. 2, 1996
5085337 Shock resistant gasketing system for liquid containers Feb. 4, 1992
5019345 Method for sterilizing containers May. 28, 1991
4572395 Screw cap having vent means Feb. 25, 1986
4512492 Manhole closure with a single liquid impervious, two-way gas pressure relief valve Apr. 23, 1985
4414926 Engine pressure-vacuum cooling system with a horizontal coolant storage tank Nov. 15, 1983
4109674 Pressure and vacuum relief valve assembly Aug. 29, 1978
4103705 Pressure stabilizer device Aug. 1, 1978











 
 
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