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. 29, 1994
Filed:
May. 01, 1992
Applicant:
Inventor:
Frank E Lowther, Plano, TX (US);
Assignee:
Atlantic Richfield Company, Los Angeles, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ;
U.S. Cl.
CPC ...
427128 ; 427130 ; 427139 ;
Abstract
A method for treating tubulars wherein a plurality of ablating, gelatin pigs are sequentially passed through the tubular to deposit a relatively thin film or protective layer of gelatin onto the wall of the tubular. All of the plurality of pigs are inserted into the tubular at a single insertion point but each pig substantially treats only its respective portion or length of the tubular. That is, a first pig deposits a gelatin layer on the wall of a first portion or length of the tubular, a second pig deposits a layer on a second portion or length of the tubular, and so forth.