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:
Sep. 18, 2001
Filed:
Jul. 06, 1999
Paul Dale Lycan, Brooklyn, MI (US);
Aaron Thomas Schellenberg, Canton, MI (US);
Visteon Global Tehnologies, Inc., Dearborn, MI (US);
Abstract
A method of leak testing a walled tank (,) that has multiple joints containing closures or closure devices (,) closing openings in the wall. Rims (,) of multiple cups (,) are disposed against the tank wall to place the cup interiors in substantial sealed covering relation to underlying zones of the tank wall containing joints to be checked. A tank seal (,) is disposed fluid-tight against a fill spud (,) in the tank wall, and a test gas, helium, is introduced into the interior of the tank. Gas from within the interior of each cup is sampled via a respective sampling conduit (,), and a purge gas is introduced into the interior of each cup via a respective purge conduit (,) while the gas from the interior of each cup is being sampled via the respective sampling conduit.