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. 27, 2023
Filed:
Apr. 12, 2022
Applicant:
Graco Minnesota Inc., Minneapolis, MN (US);
Inventor:
Tyler J. Kruzel, Otsego, MN (US);
Assignee:
Graco Minnesota Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 8/24 (2006.01); H02P 9/48 (2006.01); H02P 7/29 (2016.01); H02P 7/03 (2016.01); B05B 9/08 (2006.01); H02M 7/219 (2006.01);
U.S. Cl.
CPC ...
H02P 7/29 (2013.01); B05B 9/0861 (2013.01); H02M 7/219 (2013.01); H02P 7/05 (2016.02);
Abstract
A fluid sprayer includes a housing, a pump, a nozzle, a high voltage direct current (HVDC) brushed electric motor that drives the pump, and a motor controller electrically connected to the motor. The motor controller drives the motor with a high speed pulse width modulated (PWM) drive signal that switches current through the motor on and off. The motor controller varies the PWM signal as a function of a spray setting input and sensed current through the motor.