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. 10, 2015
Filed:
Sep. 17, 2013
Caterpillar Inc., Peoria, IL (US);
John W. Unes, Chillicothe, IL (US);
Eric Krause, Kewanee, IL (US);
Steven R. Meinhart, Lafayette, IN (US);
David C. Mack, Peoria, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A fuel pump is disclosed. The fuel pump includes a housing. Further, the fuel pump includes a rotatable pump shaft disposed within the housing. One end of the rotatable pump shaft is attachable to a gear. The housing also includes a retainer disposed within the housing and located about the pump shaft. The retainer includes a first rim and a second rim that are spaced apart from each other. The retainer also includes a side wall extending between the first and the second rims. Further, the side wall of the retainer defines a first volume and a second volume within the housing. The side wall of the retainer has a plurality of apertures configured to allow a fluid flow from the first volume to the second volume while retaining particulate contaminants larger than a size of the apertures within the first volume.