Thomas D Cronin

US Patent:

20080236711, Oct 2, 2008

Filed:

Mar 27, 2007

Appl. No.:

11/691753

Inventors:

Roger Bradford - Malad ID, US
Thomas Cronin - Ogden UT, US
Ivan Mendenhall - Providence UT, US
Brett Hussey - Bountiful UT, US

Assignee:

Autoliv ASP, Inc. - Ogden UT

International Classification:

B60R 21/20

US Classification:

1491096

Abstract:

Methods for making a pressed monolithic gas generant for an inflatable restraint device (for example, an airbag system for a vehicle) are provided. The methods include admixing a gas generant material with a ballistic performance modifier to form a mixture. The mixture is granulated. Then, a pressed monolithic gas generant grain is formed by applying pressure to the granulated mixture, where the grain has an actual density of at least about 95% of the maximum theoretical density. The pressure may be applied in a controlled manner to both side of the gas generant material in a die cavity, and removing formed grain from die cavity while maintaining some pressure to both sides of the grain, thereby further improving various pyrotechnic properties. The methods of the disclosure provide pyrotechnic compositions that are economical to manufacture, have improved burn rate, combustion profile, effluent quality, strength, durability, and integrity of the grain, while having a consistent shape between different production lots.

US Patent:

47908483, Dec 13, 1988

Filed:

Nov 27, 1987

Appl. No.:

7/125856

Inventors:

Thomas D. Cronin - Houston TX

Assignee:

Dow Corning Wright - Arlington TN

International Classification:

A61F 212

US Classification:

623 8

Abstract:

This invention provides a multiple lumen implant in which the inner lumen is of a substantially spherical shape and is unattached or free-floating. The invention provides a construction which is able to provide and maintain a high projection and to simulate the natural flow of breast tissue during a variety of activities in which the patient may participate on a daily basis.