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:
Jul. 31, 2018
Filed:
Apr. 07, 2015
Applicant:
Caterpillar Inc., Peoria, IL (US);
Inventors:
Alan Ray Stockner, Metamora, IL (US);
Sana Mahmood, Peoria, IL (US);
Joshua Steffen, El Paso, IL (US);
Dana Ray Coldren, Secor, IL (US);
Assignee:
Caterpillar Inc., Deerfield, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 53/14 (2006.01); F04B 53/00 (2006.01); F04B 15/08 (2006.01);
U.S. Cl.
CPC ...
F04B 53/14 (2013.01); F04B 53/008 (2013.01); F04B 2015/081 (2013.01);
Abstract
A pump piston is disclosed. The pump piston may include a body having an actuating end, a pressurizing end opposite the actuating end, and an outer diameter that is greater at the pressurizing end than at the actuating end, wherein the outer diameter varies between the pressurizing end and the actuating end without increasing to form an outer diameter profile.