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:
Apr. 11, 2006
Filed:
May. 27, 2004
Gary D. Werner, Lakewood, CO (US);
Steven X. Johnson, Golden, CO (US);
Gary D. Werner, Lakewood, CO (US);
Steven X. Johnson, Golden, CO (US);
WJ Technologies, Inc., Lakewood, CO (US);
Abstract
Disclosed is a tool for both removing and tightening screw-on drains that is simple and easy to use, has a simple design and is easy to manufacture. The tool is capable of engaging an inner surface of a drain flange in a manner that is sufficient to transfer enough force to remove screw-on drain flanges and is capable of use with various designs and sizes of screw-on drain flanges. Different size cams and different lever arms used on the cams allow the tool to optimize the radial force to torque ratio for both removal and insertion of screw-on drain flanges. In addition, nubs are used at the bottom of the drain flange to engage arms that typically are used on drain flanges to further add to the resistance that can be provided between the tool and the drain flange and distribute forces in a dynamic, instantaneous and automatic fashion to optimize removal of the drain flange.