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. 18, 1994
Filed:
Jan. 26, 1993
Jean Robinet, Balma, FR;
Daniel Casenave, Castanet Tolosan, FR;
Ruggieri, Neuilly sur Seine, FR;
Abstract
Delay igniter plug for pyrotechnic machine, in particular manual or mechanical launch grenade, comprising a body (4) fitted with a control mechanism comprising a trigger lever (1) and a percussion mechanism (28) interacting with a primary pyrotechnic module provided with a primer (3), a retardant composition (9), a primary explosive (13) which are capable of ensuring initiation of the charge of the associated machine which is arranged so that the primary explosive (13) cannot be initiated without going via the retardant composition, the primary pyrotechnic module (5) being axially displaceable in the said body toward the principal charge, means (2) for holding the primary pyrotechnic module (5) axially separated from the principal charge (19) and a screen (12a, 15) interposed between the principal charge and the terminal part of the primary pyrotechnic module containing the primary explosive (13), characterized in that the means (2) for holding the primary pyrotechnic module (5) axially separated from the principal charge (19) are exclusively mechanical means, actuated by the trigger lever (1) and in that the screen interposed between the principal charge and the terminal part of the primary pyrotechnic module (5), comprises a closure cap (15) of a cup (18) containing the principal charge (19) and a pellet (12a) carried by the end of the primary pyrotechnic module (5) containing the primary explosive (13) and engaged in the cap (15), the pellet (12a) and the cap (15) being shaped in order to be made integral with each other in the case of excitation of the primary explosive (13) in the storage position and to create a physical barrier to the shock wave or to the fragments.