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:
Dec. 11, 2012
Filed:
Apr. 30, 2004
Joseph W. Twarog, Jr., Barkhamsted, CT (US);
John C. Campbell, Jr., East Hartford, CT (US);
Tyson J. Plitt, Barkhamsted, CT (US);
Kim Chi Ho, Plainville, CT (US);
Joseph W. Twarog, Jr., Barkhamsted, CT (US);
John C. Campbell, Jr., East Hartford, CT (US);
Tyson J. Plitt, Barkhamsted, CT (US);
Kim Chi Ho, Plainville, CT (US);
Dyno Nobel Inc., Salt Lake City, UT (US);
Abstract
A timing element for an initiator is made from a reactive polymeric material such as, e.g., a glycidyl azide polymer. The reactive polymeric material may include pulverulent oxidizer additives, such as ammonium, perchlorate and/or ferric oxide. The oxidizer additives are used to increase the rate of reaction and the output spark of the polymer material. The timing element serves to delay the travel of an initiation signal between an input, such as a signal transmission input line, and an explosive output charge, for a predetermined period of time, usually about 5 to about 10,000 milliseconds, e.g., about 9 to about 9600 milliseconds.