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:
Oct. 20, 1998
Filed:
Nov. 06, 1995
Armand J Aronne, Massapequa, NY (US);
Northrop Grumman Corporation, Los Angeles, CA (US);
Abstract
A testing device for testing the continuity of a firing circuit for a squib of an electro-ballistic system which includes a propellant and a plurality of spaced pin-like detonator wires embedded in the propellant. Each of the detonator wires has a first end positioned outside the propellant and a spaced opposite second end embedded in the propellant. Low resistance bridge detonating wires are embedded in the propellant, and electrically connect the second ends of selected ones of the detonator wires. The testing device is embedded in the propellant in spaced relation with the detonator wires and tests the continuity of the firing circuit for the squib. The testing device includes a pair of spaced pin-like test wires embedded in the propellant, with each test wire having a first end outside the propellant and a spaced opposite second end embedded in the propellant. A low-resistance bridge test wire is embedded in the propellant and electrically connects the second ends of the test wires. The continuity of the firing circuit for the squib is tested by passing a low magnitude electrical current through the test wires, the magnitude of which is low compared with the current passed through the detonating wires during ignition of the squib.