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:
Mar. 27, 1990
Filed:
Oct. 07, 1988
Applicant:
Inventor:
Jack R Claycomb, Houston, TX (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 39 ; 285 45 ; 285328 ; 285321 ; 166243 ;
Abstract
A durable blast joint using a protective sheath of erosion resistant rings arranged in overlapping stacks so as to provide a vertically continuous protective sheath for the full length of the blast joint, while also providing durable structural surfaces suitable for gripping with power tools.