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:
May. 14, 1985
Filed:
Sep. 29, 1982
Applicant:
Inventors:
Charles H Titus, Newtown Square, PA (US);
John K Wittle, Chester Springs, PA (US);
Assignee:
Electro-Petroleum, Inc., Wayne, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ; F16L / ; F16L / ;
U.S. Cl.
CPC ...
138140 ; 138120 ; 138137 ; 138155 ; 138149 ;
Abstract
An elongated tubular member for use in connection with a subterranean well, such as deep bore oil well, is comprised of at least two annular layers which may be bonded together. The first annular layer is comprised of a fiber reinforced organic resin material and the second layer is comprised of a refractory material. The two layers combined to provide an inexpensive, lightweight tubular member having relatively high compressive strength.