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:
Sep. 14, 1993
Filed:
Sep. 02, 1993
Applicant:
Inventors:
Geoffrey F Brent, Dundonald, GB;
Malcolm D Harding, Irvine, GB;
Assignee:
Imperial Chemical Industries PLC, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C06C / ;
U.S. Cl.
CPC ...
1022758 ; 149123 ;
Abstract
A shock tube initiator comprises a plastics tubing having an unobstructed axial bore, said tubing having throughout its length an inner surface upon which unconsolidated reactive materials are provided as a loosely adherent dusting of shock-dislodgeable particles at a core loading sufficiently low to avoid rupture of the tubing in use, wherein said reactive materials comprise flake metallic fuel particles having a surface colouring layer of pigment, e.g. Fe.sub.2 O.sub.3 whereby on firing of the core charge the residue is visibly of a different colour, hue, or shade.