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. 19, 1982
Filed:
Mar. 18, 1980
Applicant:
Inventor:
Harrold D Owen, Forth Worth, TX (US);
Assignee:
Pengo Industries, Inc., Fort Worth, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
F42B / ;
U.S. Cl.
CPC ...
102307 ; 102308 ; 102310 ; 102320 ; 102378 ; 89 / ;
Abstract
The invention pertains to an improved annular shaped charge of a type to be used in the shaped charge carrier of pipe cutting or severing apparatus. The improved annular shaped charge is made up of eight or more shaped charge segments disposed in side to side abutting relation. Each shaped charge segment has a die formed metal band and charge load. The invention also pertains to methods of making said annular shaped charge and the shaped charge segments, which methods are described.