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:
Dec. 01, 1992
Filed:
Aug. 13, 1991
Applicant:
Inventors:
Leslie R Quaife, Priddis, CA;
James Szarka, Calgary, CA;
Kelly J Moynihan, Calgary, CA;
Michael E Moir, Calgary, CA;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10L / ; C10J / ; C09K / ;
U.S. Cl.
CPC ...
2524081 ; 252 68 ; 44639 ; 73 4 / ; 73 407 ;
Abstract
A method of locating leaks in pipelines and associated facilities and a novel leak-detection test-fluid are disclosed. The novel test-fluid, comprising an odorant (preferably dimethylsulphide), a mutual solvent and water, is injected into a pipeline or facility so that the test-fluid escapes through the leak and an odorant which, by virtue of its chemical and physical properties, is released from other test-fluid components to be detected in the vicinity of the leak.