DAVID R LITTLE
Vehicle Board in Collegeville, PA
License number
Pennsylvania MV234791
Category
Vehicle Board
Type
Vehicle Salesperson
Address
Address
Collegeville, PA 19426
Professional information
Airbag Igniter Having Double Glass Seal
US Patent:
5140906, Aug 25, 1992
Filed:
Nov 5, 1991
Appl. No.:
7/788046
Inventors:
David J. Little - Collegeville PA
Assignee:
ICI Americas, Inc. - Wilmington DE
International Classification:
F42C 1912
US Classification:
10220214
Abstract:
An airbag igniter having an initiator charge in an inner case and an output charge in a surrounding outer case, has a first metal header closing the inner case and a glass seal providing feed through of one or more electrical connections to the initiator charge through the first header. The outer case has a second metal header fitted to it. The second header surrounds the first header in a spaced relationship maintained by a second glass seal. The second glass seal electrically isolates the second header and outer case from the inner header for protection against accidental ignition. The dual glass seals provide protection against maloperation due to gas leakage. A ceramic washer in axial compression between the outer header and a flange of the inner header provides added assurance against failure of the second glass seal.