EP0620139A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Inflatable restraint system reaction canister with integral inflator chamber
Assignee: Autoliv ASP Inc
•
Filing: 1994-03-22
•
Granted: —
•
Expires: 2014-03-22
Abstract
Abstract A reaction canister for a vehicle occupant inflatable restraint system includes an integral extruded aluminium body part (100) including opposite side walls (110,112) and an apertured inflator chamber (106). End closures comprising a plate and a base which extends through the plate to engage an inner surface of the inflator chamber (106) are connected to each end of the body part (100) by screws which engage channel shaped preparations in the body part (100). Attachment sleeves (142) are provided for retaining an air bag (134) and a diffuser device (140) in place. Thermally conductive material such as aluminium wool (151) may be located in gas cooling cavities (150) provided with rearwardly facing vent holes (149). A protective cover (154) and canister mounting portions (184A,184B) may also be provided.
Inventors
- 👤 Donald R. Lauritzen
- 👤 Larry D. Rose
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 17:42
CPC Classifications
B; B60; B60R; B60R21/00; B60R21/02; B60R21/16; B60R21/20; B60R21/217; B60R21/2171; B60R21/201; B60R21/26; B60R21/276
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
77 words
A trough-shaped body part (100) for an inflatable passive restraint system reaction canister, said body part (100) being formed by extrusion and comprising: first and second opposite side walls (110, 112) and an integrally shaped inflator chamber (106) having gas exit vents (126) along at least one side thereof, said body part (100) also having first (114) and second (115) opposite ends with a plurality of end closure attachment preparations (164A, 164B) at each said opposite end.
Claim 2
Dependent Claim
21 words
The reaction canister body part of claim 1 wherein the fabrication of the body part (100) is of continuous aluminum extrusion.
Claim 3
Dependent Claim
69 words
The reaction canister body part (100) of claim 1 or 2 wherein at least one of said side walls (110, 112) is continuously formed with said integrally shaped inflator chamber (106) via a side wall connecting portion (116, 118) and wherein said side wall connecting portion (116, 118) includes at least one vent hole (149) permitting venting of gas from an assembly incorporating the reaction canister body part (100).
Claim 4
Dependent Claim
19 words
The reaction canister body part (100) of any preceding claim additionally comprising at least one gas cooling cavity (150).
Claim 5
Dependent Claim
19 words
The reaction canister body part of claim 4 wherein said cooling cavity (150) contains a thermal conductive material (151).
Claim 6
Dependent Claim
17 words
The reaction canister body part of claim 5 wherein said thermal conductive material (151) comprises aluminum wool.
Claim 7
Dependent Claim
52 words
The reaction canister body part of any preceding claim additionally comprising at least one integrally formed attachment sleeve preparation (142) adapted for the attachment of said body part (110) of at least one device selected from the group consisting of an air bag retainer, a diffuser, and an air bag retainer/diffuser (140).
Claim 8
Dependent Claim
36 words
The reaction canister body part (100) of any preceding claim additionally comprising at least one integrally formed mounting portion (184A) of an external type for mounting of said reaction canister body part (100) into a vehicle.
Claim 9
Dependent Claim
31 words
The reaction canister body part of any preceding claim additionally comprising at least one integrally formed mounting portion (184B) forming a shielded cavity (190) within said reaction canister body part (100).
Claim 10
Dependent Claim
22 words
The reaction canister body part of any preceding claim additionally comprising at least one integrally formed protective cover (154) retaining preparation (152).
Claim 11
Dependent Claim
28 words
The reaction canister body part of any preceding claim wherein the integrally shaped inflator chamber (106) is capable of withstanding an internal pressure of 10342 kPa (1500 psi).
Claim 12
Dependent Claim
87 words
A reaction canister including a body part (100) as claimed in any preceding claim and first and second end closures (170) attached to a respectively associated opposite end of said body part (100) by means positioned in cooperative relation with the respective end closure attachment preparations (164A, 164B), each of said first and second end closures (170) further having an inflator chamber base portion (178A, 178B) positioned to receive an associated one of the ends of the integrally shaped inflator chamber (106) of said body part (100).
Claim 13
Dependent Claim
27 words
The reaction canister of claim 12 wherein at least one of said end closures (170) comprises an end plate (174A, 174B) and an end base (178A, 178B).
Claim 14
Dependent Claim
25 words
The reaction canister of claim 12 or 13 wherein at least one of said end closures comprises an end plate with an integral end base.
Claim 15
Dependent Claim
50 words
The reaction canister of any one of claims 12 to 14 additionally comprising an air bag retainer/diffuser (140) and wherein said body part (100) additionally comprises at least one integrally formed attachment sleeve preparation (142) adapted for the attachment of said air bag retainer/diffuser (140) to said body part (100).
Claim 16
Dependent Claim
75 words
The reaction canister of claim 15 wherein said air bag retainer/diffuser (140) is attached to said reaction canister body part (100) by insert means positioned in cooperative relation with said attachment sleeve preparation (142); and said first and second end closures (170) are attached to a respectively associated opposite end (114, 115) of said body part (100) by screw means (180A, 180B) positioned in cooperative relation with the respective end closure attachment preparations (164A, 164B).
Claim 17
Dependent Claim
35 words
The reaction canister of any one of claims 12 to 16 containing a pack (109) of gas generant material which is not designed to contain high pressure produced during combustion of the gas generant material.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.