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:
Nov. 19, 2002
Filed:
Apr. 17, 2001
Applicant:
Inventors:
Raul Armando Bircann, Penfield, NY (US);
Dwight Orman Palmer, Rochester, NY (US);
Assignee:
Delphi Technologies, Inc., Troy, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02M 2/507 ;
U.S. Cl.
CPC ...
F02M 2/507 ;
Abstract
A valve shaft scraping and filtering device for use in an engine valve includes a woven mesh annulus disposed within a valve assembly and surrounding the valve shaft such that the annulus gently scrapes the valve shaft as the valve shaft reciprocates within the valve assembly without interfering with shaft actuation. The annulus may be made with a high density weave and utilized as a filter or particulate seal to trap loose particulates which may be present within the valve.