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. 06, 1981
Filed:
Apr. 21, 1980
Applicant:
Inventors:
William B Morrey, Brownsburg, CA;
David M Welsh, Brownsburg, CA;
Assignee:
CXA Ltd./CXA Ltee, Montreal, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F42B / ;
U.S. Cl.
CPC ...
1022758 ;
Abstract
An improved cord-like detonating device is provided for use in non-electric blasting methods. The device comprises a substantially standard detonating cord length wherein a central longitudinal core of the cord consists of a hollow, low energy shock wave conductor. The device has particular utility in long hole blasting with toe priming. Initiating energy can be transmitted down the hole to the toe primer charge through the low energy shock wave conductor. The detonating primer initiates the outer detonating cord sheath which transmits energy to set off additional primer charges attached thereto.