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:
Aug. 06, 1996
Filed:
Apr. 08, 1994
Applicant:
Inventors:
Douglas W Carlson, Houston, TX (US);
Stephen P Simons, Houston, TX (US);
Assignee:
Hydrill Company, Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138110 ; 138108 ; 1753255 ; 1753256 ;
Abstract
A pipe protector has been designed to provide free flow and low energy. The outside surface has a bilateral asymmetrical pattern when comparing the approximate top half of the pipe protector to the bottom half of the pipe protector. The pattern has raised figures surrounded by communicating channels.