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:
Feb. 08, 2005
Filed:
Apr. 30, 2002
Richard K. Reynolds, Calistoga, CA (US);
Andrew F. Cunningham, Seattle, WA (US);
George N. Hennings, Ridgecrest, CA (US);
Thomas M. Nickolin, Batavia, OH (US);
Richard K. Reynolds, Calistoga, CA (US);
Andrew F. Cunningham, Seattle, WA (US);
George N. Hennings, Ridgecrest, CA (US);
Thomas M. Nickolin, Batavia, OH (US);
KDI Precision Products, Inc., Cincinnati, OH (US);
Abstract
A detonator for initiating a detonation event in an explosive charge. The detonator comprises an exploding foil initiator and a switch. The exploding foil initiator includes a detonator bridge with a bridge member and a bridge contact that are electrically coupled to one another. The switch includes a switch contact that is spaced apart from the detonator bridge such that a spark gap of a predetermined width is defined between the bridge contact and the switch contact. A discharge arc, which is formed when a voltage in excess of a predetermined gap breakdown voltage is applied across the spark gap, closes the switch to thereby permit current to flow between the bridge contact and the switch contact.