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:
May. 04, 1993
Filed:
Oct. 19, 1992
Applicant:
Inventors:
Robert C Greenhorn, L'Orignal, CA;
Jacques Lafond, Lachute, CA;
Assignee:
ICI Canada Inc., North York, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C06C / ;
U.S. Cl.
CPC ...
1022754 ; 10227511 ; 149123 ;
Abstract
A method of producing a coloured shock tubing comprising a visibly coloured hollow tube having an inner coating of a reactive material wherein the core loading of the reactive material in the tube may be measured by radiation absorption. The visible colouration of the hollow tube is effected by the addition of a coloured compound, which compound is essentially transparent to the radiation used to measure core loading. A one stage extrusion process may be utilized to prepare a shock tube wherein core loading is easily measured during production, and verified after production.