Air bag inflator

Details Air bag inflator Air bag inflator

2000-11-16

2002-05-07

Dickson, Paul N. (Department: 3618)

Land vehicles

Wheeled

Attachment

C280S741000

Reexamination Certificate

active

06382668

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Technical Field
The present invention relates to an inflator for an inflatable vehicle occupant protection device, such as an air bag.
2. Description of the Prior Art
An inflator for an inflatable vehicle occupant protection device, such as an air bag, includes a source of inflation fluid. The source of inflation fluid may be a stored quantity of pressurized inflation fluid, or a combination of pressurized inflation fluid and ignitable material for heating the inflation fluid. The ignitable material may be a solid material or may be a fuel gas, which is mixed in with the pressurized inflation fluid.
An inflator typically includes an initiator, which is actuated electrically when the air bag is to be inflated. Actuation of the initiator effects flow of inflation fluid from the inflator into the air bag to inflate the air bag. Certain of such inflators have an inflation fluid outlet with a flow area that varies in accordance with the pressure of inflation fluid in the housing.
SUMMARY OF THE INVENTION
The present invention is an inflator for inflating a vehicle occupant protection device. The inflator comprises a vessel containing stored gas and ignitable material. The vessel has a portion that provides a first opening for fluid to flow from the vessel when the pressure in the vessel reaches a predetermined pressure. The inflator also comprises an igniter for igniting the ignitable material and increasing the pressure in the vessel. The inflator also comprises a control part upstream of the portion for controlling fluid flow to the first opening. The control part defines a second opening that increases in size as the pressure in the vessel increases.


REFERENCES:
patent: 3752500 (1973-08-01), Culver
patent: 3787067 (1974-01-01), Bernard
patent: 5350192 (1994-09-01), Blumenthal
patent: 5351989 (1994-10-01), Popek et al.
patent: 5454592 (1995-10-01), Blumenthal et al.
patent: 5464247 (1995-11-01), Rizzi et al.
patent: 5551723 (1996-09-01), Mahon et al.
patent: 5590906 (1997-01-01), Faigle et al.
patent: 5609362 (1997-03-01), Sparks et al.
patent: 5618057 (1997-04-01), Johnson et al.
patent: 5620204 (1997-04-01), Frey
patent: 5664804 (1997-09-01), Saccone
patent: 5820162 (1998-10-01), Fink
patent: 5863066 (1999-01-01), Blumenthal
patent: 5863067 (1999-01-01), Blumenthal et al.
patent: 5927753 (1999-07-01), Faigle et al.

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