Discharge valves for airbags and airbags including the same

The discharge valve of claim 1, further comprising a spring connected to said movable member for allowing movement of said movable member.

The discharge valve of claim 1, wherein said fixed member is adapted to be arranged on an outer layer of the material of the airbag.

The discharge valve of claim 1, further comprising a movement mechanism for moving said movable member relative to said fixed member.

The discharge valve of claim 1, wherein said movable member and said fixed member are plates.

The discharge valve of claim 1, wherein said movable member and said fixed member are cylinders with one of said cylinders being positionable within the other of said cylinders to thereby bring the openings into alignment.

The discharge valve of claim 1, wherein said movable member and said fixed member are cones with one of said cones being positionable within the other of said cones to thereby being the openings into alignment.

A discharge valve for an airbag, comprising:

• a diaphragm composed of foil and including concentric grooves;
• and
• means for weakening at least one of said grooves whereby said diaphragm is severable along said at least one groove upon exertion of pressure.

A discharge valve for an airbag, comprising:

• a flexible diaphragm adapted to be fixed to the airbag and having apertures therein.

A discharge valve for an airbag, comprising:

• a substrate having at least three spiral cuts arranged to form cantilevered arms capable of deflecting under pressure.

A discharge valve for an airbag, comprising:

• a substrate having cuts defining cantilevered arms capable of deflecting under pressure.