Patent Number: 7,819,425

Title: Apparatus and method for controlling an inflatable cushion

Abstract: A control device for modifying the deployment characteristics of an inflatable cushion of an airbag module, the control device comprising: a releasable retention device, a first end of the releasable retention device being releasably secured to an inner surface of the inflatable cushion at a first location, the releasable retention device being configured to limit deployment of the inflatable cushion in a first direction when the releasable retention device is secured to the first location of the inflatable cushion; a sensing device for releasing the releasable retention device from the first location, the sensing device being fixedly secured to the inner surface of the inflatable cushion at a second location remote from the first location and releasably secured to the releasable retention device, the sensing device being configured to release the releasable retention device from the first location when the second location of the inflatable cushion travels a predetermined distance during inflation; and a venting tether secured to the inner surface of the inflatable cushion at one end, the venting tether being configured to allow venting through at least one vent opening when the releasable retention device is secured to the inner surface of the inflatable cushion and the at least one vent opening is covered by the venting tether when the releasable retention device is released from the inner surface of the inflatable cushion.

Inventors: Webber; James L. (Shelby Township, MI), Pinsenschaum; Ryan (Dayton, OH), Hawthorn; Laura (Tipp City, OH)

Assignee: Autoliv Development AB

International Classification: B60R 21/16 (20060101)

Expiration Date: 2018-10-26 0:00:00