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. 11, 1995
Filed:
Sep. 13, 1990
Brian M Lewis, Ontario, CA;
GSW Inc., Ontario, CA;
Abstract
A corrosion resistant insert of the present invention is used for fitting at an opening in a metallic liquid tank. The insert has an open end, a radially outwardly extending lip at the open end, a closed end and an axially extending side wall spacing the open end and closed ends from one another. The closed end has a displaceable portion secured to the insert in a preweakened manner which facilitates opening in one direction while resisting opening in the other direction. The use of the insert in the tank enables lining and then pressure testing of the tank ready for fittings after which the closed end of the insert is opened to allow liquid flow through the tank when the tank is in use.