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:
Dec. 13, 2005
Filed:
Oct. 01, 2001
Darrell T. Mckenzie, Gastonia, NC (US);
Darrell T. McKenzie, Gastonia, NC (US);
Wix Filtration Corp., Gastonia, NC (US);
Abstract
A combined filter element support and anti-prefill valve is used with an annular filter element having an annular filter media with a hollow core for filtering lubricating oil or fuel. The combined filter element includes a unitary body having an annular portion, wherein the annular portion has annular shoulder extending radially therefrom for supporting the filter element, and a sealing section which engages the end plate over a continuous location which is coaxial with the central spin-on opening. The unitary body has a radially extending plate portion having an axially positioned one-way valve unitary therewith, which valve opens in an axial direction toward the spin-opening. In a preferred embodiment, the one-way valve is configured by a pair of lips which normally abut along a line and separate when subjected to oil or fuel pressure.