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.

Date of Patent:
Sep. 05, 2017

Filed:

Apr. 17, 2015
Applicant:

Synerject Llc, Newport News, VA (US);

Inventors:

James Fochtman, Williamsburg, VA (US);

John Walters, Williamsburg, VA (US);

Assignee:

Synerject LLC, Newport News, VA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04D 27/00 (2006.01); G05B 15/02 (2006.01); F04B 17/04 (2006.01);
U.S. Cl.
CPC ...
G05B 15/02 (2013.01); F04B 17/042 (2013.01);
Abstract

In some embodiments, an apparatus includes a solenoid and a solenoid controller. The solenoid is configured to move an actuator a distance between a first position and a second position when a voltage is supplied to the solenoid. The solenoid controller is implemented in at least one of a memory or a processor, and includes a feedback module and an output module. The feedback module is configured to receive a feedback signal associated with a solenoid current after the voltage is removed from the solenoid. The feedback module is further configured to determine whether the distance is less than a maximum distance between the first position and the second position (i.e., a 'stroke'). The output module configured to produce an output signal when the feedback module determines that the distance is less than the maximum distance.


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