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. 07, 2021
Filed:
Nov. 26, 2018
Applicant:
Purdue Research Foundation, West Lafayette, IN (US);
Inventors:
Andrea Vacca, Lafayette, IN (US);
Gabriele Altare, Lafayette, IN (US);
Assignee:
Purdue Research Foundation, West Lafayette, IN (US);
Primary Examiner:
Int. Cl.
CPC ...
F04C 2/18 (2006.01); F04C 14/00 (2006.01); F04C 14/04 (2006.01); F04C 15/00 (2006.01); F04C 15/06 (2006.01); F15B 7/00 (2006.01); F15B 15/18 (2006.01); F01C 21/02 (2006.01);
U.S. Cl.
CPC ...
F15B 7/006 (2013.01); F01C 21/02 (2013.01); F04C 2/18 (2013.01); F04C 14/00 (2013.01); F04C 14/04 (2013.01); F04C 15/008 (2013.01); F04C 15/0026 (2013.01); F04C 15/0034 (2013.01); F04C 15/0042 (2013.01); F04C 15/06 (2013.01); F04C 15/064 (2013.01); F15B 15/18 (2013.01); F04C 15/066 (2013.01); F04C 2240/56 (2013.01);
Abstract
Methods and apparatus pertaining to positive displacement pumps, and further to hydraulic actuation systems. In some embodiments the pumps are gear pumps with bi-directional operation. In some embodiments the actuation system includes a motor-driven, reversible operation gear pump providing fluid under pressure to a rod and cylinder.