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:
Apr. 20, 1993
Filed:
Jun. 21, 1991
Applicant:
Inventors:
Barbara A Soltz, Spring Valley, NY (US);
Charles R Chubb, St. Peters, MO (US);
John M Haake, St. Charles, MO (US);
Richard G Podgornik, St. Louis, MO (US);
Dale F Waldo, St. Louis, MO (US);
Assignee:
McDonnell Douglas Corporation, St. Louis, MO (US);
Primary Examiner:
Int. Cl.
CPC ...
F42C / ;
U.S. Cl.
CPC ...
102201 ;
Abstract
A laser diode apparatus for initiating explosives or other pyrotechnic devices that has capability of checking both the laser diode operation and the optical fiber continuity between the laser diode source and the explosives required to be detonated. Power isolation circuits are provided to control the flow of current to the laser diode, also isolation filters are used to allow only the command signals to initiate the firing circuits employed.