logo

For the Inventor, By the Inventor

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 11015728 B1

PDFFull Text
Date of Patent:
May. 25, 2021

Filed:

Aug. 04, 2016

Stepper motor driven proportional rotary actuator

Applicants:

Mark A. Spickard, Carr, CO (US);

Brian K. Lawver, Rockford, IL (US);

Inventors:

Mark A. Spickard, Carr, CO (US);

Brian K. Lawver, Rockford, IL (US);

Assignee:

Woodward, Inc., Fort Collins, CO (US);

Attorney:

Reinhart Boerner Van Deuren P.C.

Primary Examiner:

Matthew W Jellett

Int. Cl.
CPC ...
F16K 31/04 (2006.01); F16K 31/524 (2006.01); F15B 13/044 (2006.01); H02K 7/10 (2006.01); F15B 15/12 (2006.01); F15B 15/06 (2006.01); H02K 7/06 (2006.01); H02K 37/14 (2006.01);
U.S. Cl.
CPC ...
F16K 31/042 (2013.01); F15B 13/0444 (2013.01); F16K 31/04 (2013.01); F16K 31/043 (2013.01); F16K 31/52483 (2013.01); F15B 15/065 (2013.01); F15B 15/066 (2013.01); F15B 15/068 (2013.01); F15B 15/12 (2013.01); H02K 7/06 (2013.01); H02K 7/10 (2013.01); H02K 37/14 (2013.01); Y10T 137/8671 (2015.04); Y10T 137/86614 (2015.04); Y10T 137/86622 (2015.04);
Abstract

A stepper motor driven actuator system is provided. The system includes a stepper motor, a cam, and a gearbox system. The gearbox system operatively connects the stepper motor to the cam. The cam rotates in response to stepping of the stepper motor. The system also includes a valve having a control piston located therein. The control piston is configured to translate in response to rotation of the cam. The system further includes a rotary actuator. The rotary actuator is fluidly connected to the valve, and the rotary actuator is configured to rotate the cam in response to translation of the control piston.

Find Patent Forward Citations

Loading…