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. 08, 2015
Filed:
Jul. 02, 2012
Donald Gene Clark, Iuka, MS (US);
Curtis John Graham, Peoria, IL (US);
Jack Maclellan Nix, Booneville, MS (US);
Caxton Darnell Martin, Jr., Corinth, MS (US);
Donald Gene Clark, Iuka, MS (US);
Curtis John Graham, Peoria, IL (US);
Jack Maclellan Nix, Booneville, MS (US);
Caxton Darnell Martin, Jr., Corinth, MS (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A remanufactured pump includes a casing and a pumping mechanism positioned within the casing having a rotatable pump shaft and an impeller mounted upon the pump shaft and rotatable within a pumping chamber in the casing. A first insert is held fast within a first bore in the casing, and a second insert is held fast within a second bore in the casing, each via an interference fit. Sealing mechanisms are positioned within the first and second inserts to form a first seal about the pump shaft to prevent leakage of a working fluid from the pumping chamber, and a second seal about the pump shaft to prevent leakage of a lubricating fluid from a bearing chamber in the casing. Related methodology is also disclosed.