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Class Information
Number: 137/68.3
Name: Fluid handling > Destructible or deformable element controlled > Destructible element > Rupture disc > Knife or cutter causes disc to break > Movable knife or cutter
Description: Subject matter wherein the piercing device is positionable.










Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
4666062 Device for mixing and spraying a mixture composed of at least two components, such as liquids, and a propellant May. 19, 1987
4609005 Tubing isolation disc valve Sep. 2, 1986
4580589 Safety device with bursting knife and diaphragm for limiting the pressure of a fluid Apr. 8, 1986
4515173 Fast shutter apparatus May. 7, 1985
4476991 Pressurizable container having a safety device for releasing excessive container pressure Oct. 16, 1984
4475566 Press taps Oct. 9, 1984
4431716 Heat activated vent Feb. 14, 1984
4430392 Heat activated vent Feb. 7, 1984
4413643 Hose-break valve Nov. 8, 1983
4195632 Fluid flow valve Apr. 1, 1980
4083187 Actuator for emergency operation Apr. 11, 1978
4080965 In-line cannula valve assembly Mar. 28, 1978
4079854 Rupture disc pressure relief device Mar. 21, 1978
4072160 Scored reverse buckling rupture disc assembly Feb. 7, 1978
4064003 Rupture disc Dec. 20, 1977
4056116 Valve for interconnecting sterile containers and the like Nov. 1, 1977
4049221 Relief of inter-compartment differential pressure in aircraft Sep. 20, 1977
3982774 Vehicle crash bag Sep. 28, 1976
3955833 Method and apparatus for sterile handling of fluids May. 11, 1976
3938764 Frangible aircraft floor Feb. 17, 1976
3938704 Inflation control valves Feb. 17, 1976

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