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:
Apr. 19, 2016
Filed:
Mar. 28, 2013
James E. Cook, Anoka, MN (US);
Steven T. Dorsey, Saint Joseph, MN (US);
Stephen E. Babcock, Lakeville, MN (US);
O. Harald Eriksen, Brooklyn Park, MN (US);
James E. Cook, Anoka, MN (US);
Steven T. Dorsey, Saint Joseph, MN (US);
Stephen E. Babcock, Lakeville, MN (US);
O. Harald Eriksen, Brooklyn Park, MN (US);
Pumptec, Inc., Anoka, MN (US);
Abstract
An absolute proportioning pumping system includes an electric motor assembly powering a first pump at a first flow rate and powering a second pump at a second flow rate. A proportioned fluid output includes a first fluid pumped by the first pump and a second fluid pumped by the second pump. The pumping system provides a desired ratio of the first fluid to the second fluid at the proportioned fluid output, relatively independently of pressure and flow rate at the output. In accord with further embodiments, a pump and motor assembly is mounted to and generally surrounded by a liquid tank. The pump and motor assembly may include a pair of fixed ratio outputs driven from a common motor, or may include a single variable output pump either slaved to a master pump or controlled through a timed bypass valve to control output flow rate.