Methods of forming a multi-composition pyrotechnic grain

Details Methods of forming a multi-composition pyrotechnic grain Methods of forming a multi-composition pyrotechnic grain

2007-08-13

2011-11-15

McDonough, James (Department: 1731)

Explosive and thermic compositions or charges

Processes of making

C149S002000, C149S014000, C149S108600, C149S109400

Reexamination Certificate

active

08057612

ABSTRACT:
A multi-composition pyrotechnic material is provided for an inflatable restraint device (for example, an airbag system or pretensioner for a vehicle). The multi-composition pyrotechnic material can be a gas generant, a micro gas generant, or an igniter, for example. The multi-composition pyrotechnic material comprises a first pyrotechnic material that defines one or more void regions. A second pyrotechnic material, compositionally distinct from the first pyrotechnic material, is introduced into at least one of the void regions and forms a second region of the pyrotechnic materials. The second composition can be introduced to the void regions in the form of a slurry. Methods of forming such multi-composition pyrotechnic materials are also provided.

REFERENCES:
patent: 2921521 (1960-01-01), La Haye et al.
patent: 3255281 (1966-06-01), Alexander
patent: 3722354 (1973-03-01), Herty, III
patent: 3724870 (1973-04-01), Kurokawa et al.
patent: 3986908 (1976-10-01), Grebert et al.
patent: 4099376 (1978-07-01), Japs
patent: 4131051 (1978-12-01), Schaffling
patent: 4246051 (1981-01-01), Garner et al.
patent: 4698107 (1987-10-01), Goetz et al.
patent: 4806180 (1989-02-01), Goetz et al.
patent: 4944528 (1990-07-01), Nilsson et al.
patent: 5034070 (1991-07-01), Goetz et al.
patent: 5051143 (1991-09-01), Goetz
patent: 5531941 (1996-07-01), Poole
patent: 5562303 (1996-10-01), Schleicher et al.
patent: 5623115 (1997-04-01), Lauritzen et al.
patent: 5738374 (1998-04-01), Marsaud et al.
patent: 5804758 (1998-09-01), Marsaud et al.
patent: 5821449 (1998-10-01), Langsjoen et al.
patent: 5834679 (1998-11-01), Seeger
patent: 6029994 (2000-02-01), Perotto et al.
patent: 6032979 (2000-03-01), Mossi et al.
patent: 6322649 (2001-11-01), Marsaud et al.
patent: 6368434 (2002-04-01), Espagnacq et al.
patent: 6517647 (2003-02-01), Yamato
patent: 6789485 (2004-09-01), Moquin et al.
patent: 6958101 (2005-10-01), Mendenhall et al.
patent: 7077428 (2006-07-01), Barker et al.
patent: 7470337 (2008-12-01), Mendenhall et al.
patent: 7758709 (2010-07-01), Hussey et al.
patent: 2004/0112244 (2004-06-01), Barker et al.
patent: 2006/0102259 (2006-05-01), Taylor et al.
patent: 2009/0044886 (2009-02-01), Brisighella et al.
patent: 2010/0230945 (2010-09-01), Hussey et al.
patent: 1303338 (2001-07-01), None
patent: 39 33 555 (1991-02-01), None
patent: 43 18 883 (1993-12-01), None
patent: 0 728 630 (1996-08-01), None
patent: 0 767 155 (1997-04-01), None
patent: 1118512 (2001-07-01), None
patent: WO 99/05079 (1999-02-01), None
patent: WO 01/08937 (2001-02-01), None
patent: WO 2007/149173 (2007-12-01), None
patent: WO 2008/051274 (2008-05-01), None
patent: WO 2009/023119 (2009-02-01), None
Non-Final Office Action dated Mar. 23, 2011 issued in co-pending U.S. Appl. No. 12/789,057.

Affiliated with

Also associated with

Rating

Methods of forming a multi-composition pyrotechnic grain does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Methods of forming a multi-composition pyrotechnic grain, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods of forming a multi-composition pyrotechnic grain will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4266136