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:
Apr. 03, 1990
Filed:
Aug. 24, 1988
Applicant:
Inventors:
William D Abbema, Houston, TX (US);
Casey J Jones, Houston, TX (US);
Assignee:
Tuboscope Inc., Houston, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
285 22 ; 285 55 ; 2852 / ; 285286 ; 285370 ;
Abstract
A coupled pipe assembly having a pair of opposed, axially positioned pipes each having opposed beveled ends and interior corrosion-resistant linings. A sleeve having heat-insulating material is inserted axially within the pipes with the heat-insulating material being positioned adjacent the opposed pipe ends to protect the corrosion-resistant linings from heat produced during the welding of the pipe ends. The sleeve has a uniform, continuous diameter along the entire length thereof.