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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.:

US 9618156 B1

PDFFull Text
Date of Patent:
Apr. 11, 2017

Filed:

Aug. 07, 2014

Electronic pump motor control

Applicant:

Graco Minnesota Inc., Minneapolis, MN (US);

Inventors:

Andrew J. Klaphake, Minneapolis, MN (US);

Eric J. Mjolhus, Ramsey, MN (US);

Suresha S. Nijaguna, Plymouth, MN (US);

Jesse L. Lanie, Ihlen, MN (US);

Assignee:

Graco Minnesota Inc., Minneapolis, MN (US);

Attorney:

Kinney & Lange, P.A.

Primary Examiner:

Patrick Hamo

Int. Cl.
CPC ...
F04B 49/06 (2006.01); F16N 37/00 (2006.01); F04B 53/18 (2006.01); F04B 17/03 (2006.01); F16N 19/00 (2006.01); F16N 31/02 (2006.01); F01M 1/02 (2006.01); F01M 11/00 (2006.01); F04B 19/22 (2006.01); F04C 2/08 (2006.01); F04C 14/00 (2006.01); F04C 15/00 (2006.01); F16N 7/40 (2006.01); F16N 21/00 (2006.01); F16N 29/00 (2006.01); F16N 13/00 (2006.01); G01F 23/22 (2006.01); G01F 23/40 (2006.01);
U.S. Cl.
CPC ...
F16N 37/00 (2013.01); F01M 1/02 (2013.01); F01M 11/0004 (2013.01); F04B 17/03 (2013.01); F04B 19/22 (2013.01); F04B 49/06 (2013.01); F04B 49/065 (2013.01); F04B 53/18 (2013.01); F04C 2/08 (2013.01); F04C 14/00 (2013.01); F04C 15/008 (2013.01); F16N 7/40 (2013.01); F16N 13/00 (2013.01); F16N 19/00 (2013.01); F16N 19/003 (2013.01); F16N 21/00 (2013.01); F16N 29/00 (2013.01); F16N 31/02 (2013.01); G01F 23/22 (2013.01); G01F 23/40 (2013.01); F01M 2001/023 (2013.01); F01M 2001/0215 (2013.01); F01M 2001/0238 (2013.01); F01M 2001/0253 (2013.01); F04B 2203/0201 (2013.01); F16N 2037/006 (2013.01);
Abstract

A motor control system for a lubricant pump motor comprises a pump system power input, a motor drive, a current sensor, a lubrication controller, and a drive controller. The pump system power input is configured to supply system power. The motor drive is configured to drive the lubricant pump motor using the system power. The current sensor is disposed between the pump system power input and the motor drive to sense an input current of the system power. The lubrication controller configured to provide motor activation signals. The drive controller is disposed to receive the motor activation signals via an isolated digital input, and to control the motor drive as a function of the sensed input current and a user-defined current set-point, in response to the activation signals.

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