The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 2006
Filed:
Sep. 02, 2003
Winfried Bernhard, Gerlingen, DE;
Lutz Mueller, Aichtal, DE;
Ulrich Kunz, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A bridge-type ignition element for initiating the ignition of pyrotechnical materials lying above it by heating when an electric current is passed through it. The bridge-type element is essentially made up of a resistance layer applied to a substrate, a reactive layer, applied on top of that, made of especially an oxidizable metal and a polymeric cover layer situated on top of that, whose material is selected in such a way that it is able to react exothermally at an elevated temperature with the oxidizable material of the reactive layer. The polymeric cover layer makes possible not only a lower energy requirement but also achieves corrosion protection from the surroundings and from the pyrotechnical material.