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Class Information
Number: 220/89.2
Name: Receptacles > Container attachment or adjunct > Pressure relief means > Frangible pressure relief means
Description: Receptacle wherein the pressure relief means is a diaphragm or diaphragm-like device which bursts to relieve excess pressure within the container.










Sub-classes under this class:

Class Number Class Name Patents
220/89.3 With cutting means 37


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8636164 Controlling the rated burst pressure of a rupture disc through the use of control scores on the disc dome Jan. 28, 2014
8622071 Rupture panel Jan. 7, 2014
8550104 Pressure control and relief system Oct. 8, 2013
8544675 Fluid reservoir assembly Oct. 1, 2013
8534308 Pressure control and relief system Sep. 17, 2013
8522808 Safety valve for gastight battery and gastight battery using safety valve Sep. 3, 2013
8517217 Container Aug. 27, 2013
8333212 Rupture disc with machined line of opening Dec. 18, 2012
8322360 Rupture panel Dec. 4, 2012
8091574 Bursting disc assembly Jan. 10, 2012
7975714 Burst disk assembly Jul. 12, 2011
7971759 Aerosol container with pressure relief mechanism Jul. 5, 2011
7950408 Pressure relief vent devices May. 31, 2011
7905244 Explosion pressure relief device Mar. 15, 2011
7784482 Pressure relief device assemblies Aug. 31, 2010
7735671 Non-fragmenting pressure relief apparatus Jun. 15, 2010
7732090 Sealed rectangular battery Jun. 8, 2010
7637283 Pressure relief valve with stiff support Dec. 29, 2009
7624888 Low pressure venting munitions container Dec. 1, 2009
7600527 Reverse acting rupture disc with laser-defined electropolished line of weakness and method of forming the line of weakness Oct. 13, 2009
7556063 High overpressure vent structure having spring steel recloser panel Jul. 7, 2009
7281544 Devices and methods for controlling the release of a substance Oct. 16, 2007
7251920 Lateral force resisting system Aug. 7, 2007
7234481 Safety pressure relief device Jun. 26, 2007
7222757 Pressure relief device for aerosol can May. 29, 2007
7095606 Electric switchgear with an enclosed design Aug. 22, 2006
7051751 Burst disk assembly May. 30, 2006
7017767 Non-fragmenting pressure relief apparatus Mar. 28, 2006
6959828 Non-fragmenting pressure relief apparatus Nov. 1, 2005
6955182 Tamper proof relief valve for gas cylinder Oct. 18, 2005
6948515 Carbon rupture disk assembly Sep. 27, 2005
6945420 Reverse buckling sanitary rupture disc assembly Sep. 20, 2005
6792964 Pressure relief device assemblies Sep. 21, 2004
6742538 Method and apparatus for orbital and seal welded relief device on a compressed gas cylinder Jun. 1, 2004
6672389 Bulged single-hinged scored rupture having a non-circular varying depth score line Jan. 6, 2004
6607003 Gasket-lined rupture panel Aug. 19, 2003
6591854 Superconductive magnet burst disk assembly Jul. 15, 2003
6571972 Bulk drum lid with two bung openings Jun. 3, 2003
6571816 Cell safety valve and method for manufacturing the same Jun. 3, 2003
6471082 Fusible pressure relieving drum closure Oct. 29, 2002
6446654 Pressure relief device for a sealed system Sep. 10, 2002
6446653 Rupture disk assembly Sep. 10, 2002
6431383 Enhanced reverse buckling rupture disc Aug. 13, 2002
6367203 Rupture panel Apr. 9, 2002
6321771 Pressure relief device for a sealed system Nov. 27, 2001
6318576 Sanitary rupture disk apparatus Nov. 20, 2001
6311715 Stacked rupture disk assembly Nov. 6, 2001
6298869 Reverse buckling, thermoformed, polymer rupture disk Oct. 9, 2001
6286702 Pressure release safety cap Sep. 11, 2001
6257267 Safety valve element for capacitor and capacitor case lid with safety valves Jul. 10, 2001

1 2 3 4 5










 
 
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