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. 18, 2003
Filed:
Nov. 30, 2001
Paul D. Miller, Cookeville, TN (US);
John Arnett, Cookeville, TN (US);
Melvin D. McCormick, Cookeville, TN (US);
Fleet Guard, Inc., Nashville, TN (US);
Abstract
A drain valve for a fuel filter water separator for an internal combustion engine has a first port mating with the vent opening of the separator, a second port mating with the drain opening of the separator, and a third port. The drain valve is actuatable between a closed position blocking communication of the first port with the third port and blocking communication of the second port with the third port, and an open position providing communication of the first port with the third port and providing communication of the second port with the third port. If the valve is actuated to the open position when the engine is off, collected water and vent air each flow through the third port but in opposite directions. If the drain valve is actuated while the engine is running, pressurized fuel spray from the vent opening and collected water from the drain opening of the separator each flow through the third port in the same direction.