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:
Jun. 28, 2022
Filed:
Nov. 09, 2020
Applicant:
Graco Minnesota Inc., Minneapolis, MN (US);
Inventors:
David M. Muckley, Uniontown, OH (US);
Paul Michael Jones, Uniontown, OH (US);
Assignee:
Graco Minnesota Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 2/107 (2006.01); F04C 15/00 (2006.01); F16D 1/108 (2006.01); F04C 13/00 (2006.01); F16D 1/10 (2006.01);
U.S. Cl.
CPC ...
F04C 2/1073 (2013.01); F04C 15/0023 (2013.01); F04C 15/0076 (2013.01); F16D 1/108 (2013.01); F04C 13/008 (2013.01); F04C 2240/10 (2013.01); F04C 2240/20 (2013.01); F04C 2240/60 (2013.01); F16D 2001/102 (2013.01); F16D 2300/08 (2013.01);
Abstract
A progressive cavity pump includes a sealed drive between the rotor and universal joint. The universal joint includes a socket configured to receive a drive shaft of the rotor. A cover, such as a locking nut, is disposed over the connection between the rotor and universal joint. Seals are retained in place by the locking nut to prevent abrasive materials from entering into the interface between the rotor and the universal joint.