IP Library › Granted Patent US 7,401,808
Granted Patent B2
US 7,401,808 · App. 11/357,622 · Granted Jul 22, 2008

Inflator having an improved closure cap

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Quick Facts
Patent No.
US 7,401,808
App. No.
11/357,622
Granted
Jul 22, 2008
Kind
B2
Abstract

An inflator has a sealed vessel for containing compressed gas. The inflator has an axis. The vessel has a gas outlet passageway. The inflator has an elongated sealing cap closure with an internal chamber portion open to the compressed gas and sealed vessel to seal the opening of the gas outlet passageway. The elongated sealing cap is coaxial with the inflator. When a triggering device is activated it exerts a force against the elongated sealing cap closure in a direction substantially parallel to the axis of the inflator that causes the elongated sealing cap closure to fail and allows gas to escape from the vessel.

Claims (6)

1. An inflator comprising a vessel containing compressed gas, the vessel having a gas outlet passageway defined by an annular abutment wall with a central opening, the inflator having a sealing cap closure having a sealing flange sealed to the annular abutment wall to seal the opening of the gas outlet passageway; the interior of the sealing closure cap being a chamber that is open to the compressed gas in the vessel with the chamber comprising a large diameter chamber portion adjacent the sealing flange with the large diameter chamber portion being flared down to a smaller diameter closed end chamber portion with a thin walled frangible seam disposed in a side wall of the sealing closure cap between the two chamber portions; and a triggering device that when activated generates gas that drives a piston in a direction substantially perpendicular to a longitudinal axis of the inflator such that the piston impacts the side wall of the sealing cap closure and breaks the side wall of the sealing cap closure at the thin walled frangible seam thereby allowing gas to escape from the vessel.

2. The inflator according to claim 1 further comprising an exhaust port housing having one or more exhaust ports for allowing the gas to pass therethrough to inflate an airbag.

3. The inflator according to claim 2 further comprising a filter located between the sealing cap closure and the one or more exhaust ports.

4. The inflator according to claim 1 wherein the sealing flange is secured to a surface on the annular abutment wall on a compressed gas containing portion of the vessel.

5. The inflator according to claim 4 wherein the sealing flange is welded to the annular abutment wall.

6. The inflator according to claim 1 wherein the sealing cap closure is formed as a drawn metal part.

Assignments (8)
RELEASE OF SECURITY INTEREST Recorded Oct 12, 2021
From: DEUTSCHE BANK TRUST COMPANY AMERICAS, AS SECURITY AGENT FOR THE SECURED PARTIES
To: KEY SAFETY SYSTEMS, INC.
Reel/Frame 057775/0771 →
RELEASE OF INTEREST IN PATENTS- RELEASE OF REEL/FRAME 033673/0524 Recorded Apr 12, 2018
From: UBS AG, STAMFORD BRANCH
To: KEY SAFETY SYSTEMS, INC.; KSS HOLDINGS, INC.; KSS ACQUISITION COMPANY; BREED AUTOMOTIVE TECHNOLOGY, INC.; KEY ASIAN HOLDINGS, INC.; KEY AUTOMOTIVE ACCESSORIES, INC.; KEY AUTOMOTIVE OF FLORIDA, LLC; KEY CAYMAN GP LLC; KEY INTERNATIONAL MANUFACTURING DEVELOPMENT CORPORATION; KEY SAFETY RESTRAINT SYSTEMS, INC.; KEY SAFETY SYSTEMS FOREIGN HOLDCO, LLC
Reel/Frame 045933/0563 →
INTELLECTUAL PROPERTY SECURITY AGREEMENT SUPPLEMENT Recorded Apr 11, 2018
From: KEY SAFETY SYSTEMS, INC.
To: DEUTSCHE BANK TRUST COMPANY AMERICAS
Reel/Frame 045927/0330 →
RELEASE OF INTEREST IN PATENT COLLATERAL Recorded Sep 2, 2014
From: UBS AG, STAMFORD BRANCH
To: KEY SAFETY SYSTEMS, INC.; KSS HOLDINGS, INC.; KSS ACQUISITION COMPANY; BREED AUTOMOTIVE TECHNOLOGY, INC.; HAMLIN INCORPORATED; KEY ASIAN HOLDINGS, INC.; KEY AUTOMOTIVE ACCESSORIES, INC.; KEY AUTOMOTIVE WEST, INC.; KEY AUTOMOTIVE, LP; KEY CAYMAN GP LLC; KEY ELECTRONICS OF NEVADA, INC.; KEY INTERNATIONAL MANUFACTURING DEVELOPMENT CORPORATION; KEY SAFETY RESTRAINT SYSTEMS, INC.; KEY SAFETY SYSTEMS FOREIGN HOLDCO, LLC; KEY SAFETY SYSTEMS OF TEXAS, INC.
Reel/Frame 033666/0605 →
PATENT SECURITY AGREEMENT Recorded Sep 2, 2014
From: KEY SAFETY SYSTEMS, INC.
To: UBS AG, STAMFORD BRANCH
Reel/Frame 033673/0524 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NATURE OF CONVEYANCE TO RELEASE OF SECOND LIEN INTEREST IN PATENT COLLATERAL AND THE RECEIVING PARTY NAMES PREVIOUSLY RECORDED ON REEL 031327 FRAME 676. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECOND LIEN INTEREST IN PATENT COLLATERAL. SEE ALSO THE ATTACHED DECLARATION. Recorded Aug 12, 2014
From: UBS AG, STAMFORD BRANCH
To: KEY SAFETY SYSTEMS, INC.; KSS HOLDINGS, INC.; KSS ACQUISITION COMPANY; BREED AUTOMOTIVE TECHNOLOGY, INC.; HAMLIN INCORPORATED; KEY ASIAN HOLDINGS, INC.; KEY AUTOMOTIVE ACCESSORIES, INC.; KEY AUTOMOTIVE, LP; KEY CAYMAN GP LLC; KEY ELECTRONICS OF NEVADA, INC.; KEY INTERNATIONAL MANUFACTURING DEVELOPMENT CORPORATION; KEY SAFETY RESTRAINT SYSTEMS, INC.; KEY SAFETY SYSTEMS FOREIGN HOLDCO, LLC; KEY SAFETY SYSTEMS OF TEXAS, INC.
Reel/Frame 033521/0223 →
RELEASE OF SECURITY INTEREST Recorded Sep 5, 2013
From: UBS AG, STAMFORD BRANCH
To: KEY SAFETY SYSTEMS, INC.
Reel/Frame 031327/0676 →
ASSIGNMENT AND ASSUMPTION OF SECURITY INTEREST IN PATENTS Recorded Jan 4, 2013
From: CITICORP USA, INC.
To: UBS AG, STAMFORD BRANCH
Reel/Frame 029565/0125 →