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:
May. 14, 2013
Filed:
Mar. 14, 2012
Applicants:
John W. Fronabarger, Sun Lakes, AZ (US);
Michael D. Williams, Gilbert, AZ (US);
Inventors:
John W. Fronabarger, Sun Lakes, AZ (US);
Michael D. Williams, Gilbert, AZ (US);
Assignee:
Pacific Scientific Energetic Materials Company, Chandler, AZ (US);
Primary Examiner:
Int. Cl.
CPC ...
C07D 257/04 (2006.01); H01B 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
Described are compounds and materials that may be used as a lead-free primary explosive, such as copper(I) nitrotetrazolate. Copper(I) nitrotetrazolate may he prepared by a process comprising the steps of: combining cupric salt, water and 5-nitrotetrazolate salt to form a mixture, heating the mixture, adding a reducing agent and stirring with continued heating. The method may also include combining cupric chloride, sodium 5-nitrotetrazolate and sodium ascorbate.