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:
Jul. 27, 1999
Filed:
May. 08, 1998
Applicant:
Inventor:
David D Barton, Houston, TX (US);
Assignee:
Barton Resources Limited, Bellaire, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L / ;
U.S. Cl.
CPC ...
138 92 ; 138 94 ; 215355 ;
Abstract
An access plug flange is provided for inspection ports, for example on high temperature chemical processing vessels or pipes. The plug flange prevents heat loss through an access port formed in an insulative lining covering the vessel or pipe. The plug flange further does not deteriorate or lose its sealing effect despite its location near relatively high temperatures.