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.

Date of Patent:
Mar. 15, 1994

Filed:

Jun. 22, 1990
Applicant:
Inventors:

Donald C True, Brownsburg, CA;

Raymond Carriere, Brownsburg, CA;

Assignee:

ICI Canada Inc., North York, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C06C / ;
U.S. Cl.
CPC ...
1022756 ; 10227512 ; 102315 ;
Abstract

A novel initiator (blasting cap) for explosives is provided. The initiator, which may be electric or non-electric, comprises a principal tubular metal shell containing a base charge, a delay charge, a priming charge and an ignition means, wherein the base charge and priming charge are housed within a reduced diameter tubular metal shell, which reduced diameter shell is located within but separated from the principal shell by a void space. The construction results in a markedly improved resistance against shock initiation.


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