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. 19, 1978
Filed:
Oct. 18, 1976
Applicant:
Inventor:
Andrew James Brown, Willaston, Cheshire, GB;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F42B / ;
U.S. Cl.
CPC ...
102 / ;
Abstract
A trenching charge case having an upper casing part and lower casing part separately injection moulded from an electrically conductive plastics material, and formed with interengaging screw-threads to join the parts together with the cone of the case clamped between them, each of the parts of the casing being nestable with other like parts and the lower casing part comprising a depending wall to stand off the base of the cone from the surface to be excavated.