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:
Feb. 06, 2018
Filed:
Sep. 14, 2015
Applicant:
Smith & Loveless Inc., Lenexa, KS (US);
Inventors:
John K. Kelly, Prairie Village, KS (US);
Robert A. Grove, Shawnee, KS (US);
Rodney S. Mrkvicka, Leawood, KS (US);
Donald J. Aholt, Lenexa, KS (US);
Assignee:
Smith & Loveless Inc., Lenexa, KS (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05B 19/05 (2006.01); F04D 15/00 (2006.01); G01F 1/34 (2006.01); G05D 7/06 (2006.01); F04D 1/00 (2006.01);
U.S. Cl.
CPC ...
G05B 19/054 (2013.01); F04D 15/0066 (2013.01); F04D 15/0088 (2013.01); G01F 1/34 (2013.01); G05D 7/0676 (2013.01); F04D 1/00 (2013.01); G05B 2219/1161 (2013.01);
Abstract
A pumping unit and method controlling a variable speed pump to output constant flow rate against varying outlet pressure using a controller with stored data curves of flow rate versus discharge pressure for a plurality of pump speeds for the variable speed pump, including a processor determining appropriate pump speed for the sensed discharge outlet pressure by extrapolating between the stored data curves.