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:
Oct. 28, 2003
Filed:
Oct. 31, 2001
Kelly R. Schmitz, Stoughton, WI (US);
Jon S. Wake, Verona, WI (US);
FleetGuard, Inc., Nashville, TN (US);
Abstract
A filter ( ), including an inside-out reverse flow air filter, has an annular filter element ( ) with an upper end cap ( ) provided by a resiliently compressible trifunctional member having: (a) a wall ( ) deflecting debris radially outwardly within the housing away from the central opening ( ) of the hollow filter interior ( ); (b) an air entrance guide throat ( ) directing air to the central opening ( ) with reduced restriction; and (c) a sealing surface ( ) sealed to the housing and blocking air flow from the inlet ( ) to the outlet ( ) otherwise bypassing the filter element. In further embodiments, simplified and cost reduced sealing is provided by a configured end cap.