Counter flow inflator
First Claim
1. An inflator having a proximal end and a distal end, said inflator comprising:
- a body, said body having an interior cavity, said interior cavity being configured such that it is capable of containing a quantity of gas or gas generant material;
an aperture disposed in the body;
a diffuser housing disposed about at least a portion of the body and in cooperation with the body, forming a gas flow channel, said channel being configured such that when the inflator is actuated, gas flows from the cavity, through the aperture, and into the channel, and exits the channel.
1 Assignment
0 Petitions
Accused Products
Abstract
An inflator having a body, an aperture in the body, and a diffuser housing is disclosed. The body has, or forms, an interior cavity, which may contain gas or gas generant material. The gas generant material is capable of producing gas to inflate, for example, an airbag. A diffuser housing is situated around at least a portion of the body and, in cooperation with the body, forms a gas flow channel. When the gas or gas generant material releases gas, the gas flows from the cavity, through the aperture, into the channel, and exits the channel into an airbag, cooling the gas before it enters the airbag. The inflator may also have an indentation capable of receiving a clamp. The clamp may be secured over an airbag and seated in the indentation to secure the inflator within an airbag. When the inflator is actuated, the gas is pushed away from the inflator such that the inflator is thrust towards the clamp, thereby pushing a broadening portion of the indentation against the clamp and securing the seal between the air bag and the inflator.
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Citations
37 Claims
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1. An inflator having a proximal end and a distal end, said inflator comprising:
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a body, said body having an interior cavity, said interior cavity being configured such that it is capable of containing a quantity of gas or gas generant material;
an aperture disposed in the body;
a diffuser housing disposed about at least a portion of the body and in cooperation with the body, forming a gas flow channel, said channel being configured such that when the inflator is actuated, gas flows from the cavity, through the aperture, and into the channel, and exits the channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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12. An inflator having a proximal end and a distal end, said inflator comprising:
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a substantially cylindrical body, said body having an interior cavity, said interior cavity being configured such that it is capable of containing a quantity of gas or gas generant material;
at least one aperture disposed in the body;
a diffuser housing disposed about at least a portion of said body and in cooperation with the body, forming a gas flow channel, said channel configured such that it is at least one-half of the length of the inflator, and such that when the inflator is actuated, gas flows from the cavity, through the at least one aperture, and into the channel, and exits the channel.
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22. A vehicle airbag apparatus comprising:
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an airbag having an inlet;
an inflator capable of being disposed within the inlet of said airbag, said inflator comprising a distal end, a proximal end, and a body, said body having an interior cavity, said interior being configured such that it is capable of containing a quantity of gas or gas generant material;
an aperture disposed in the body; and
a diffuser housing disposed about at least a portion of the body and in cooperation with the body, forming a gas flow channel, said channel being configured such that when the inflator is actuated, gas flows from the cavity, through the aperture, and into the channel, and exits the channel into the airbag near the distal end of the inflator, said housing further comprising an indentation being configured such that it is capable of receiving a clamp. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method for inflating a vehicle airbag comprising the steps of:
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a. providing an airbag;
b. providing an inflator comprising a distal end, a proximal end, and a body, said body having an interior cavity, said interior cavity containing a quantity of gas generant material;
an aperture disposed in the body;
a diffuser housing disposed about at least a portion of the body and in cooperation with the body, forming a gas flow channel, said channel configured such that upon operation of the inflator, gas flows from the cavity, through the aperture, and into the channel, and exits the channel into the airbag near the distal end of the inflator, said housing further comprising an indentation configured such that it is capable of receiving an clamp;
c. placing said inflator in gaseous communication with said airbag; and
d. actuating said inflator such that gas exits said body through said aperture and is directed through said channel into said airbag. - View Dependent Claims (33, 34, 36, 37)
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35. A method of inflating an airbag and simultaneously tightening a seal between an inflator and said airbag comprising the steps of:
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a. providing an airbag having an inlet;
b. providing an inflator comprising a distal end, a proximal end, and a body, said body having an interior cavity, said interior cavity containing a quantity of gas generant material;
an aperture disposed in the body;
a diffuser housing disposed about at least a portion of the body and in cooperation with the body, forming a gas flow channel, said channel configured such that upon operation of the inflator, gas flows from the cavity, through the aperture, and into the channel, and exits the channel into the airbag near the distal end of the inflator;
said housing further comprising an indentation configured such that it is capable of receiving a clamp, the indentation comprising a narrow section and a broadening section, the narrow section abutting the broadening section and being situated between the proximal end and the broadening section;
c. securing a clamp about the inlet of the airbag, the clamp being seated over the narrow section of the indentation such that said curtain and said inflator are secured one to another and in gaseous communication, creating a seal between the inflator and airbag; and
d. actuating said inflator such that gas exits said body through said aperture and is directed through said channel into said airbag, said gas exiting the inflator near the distal end and in a direction away from the proximal end such that the broadening section is pushed against the clamp, thereby tightening the seal between the inflator and airbag.
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Specification