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:
May. 26, 2026
Filed:
Feb. 16, 2023
Automatic Switch Company, Florham Park, NJ (US);
John J. Haller, Boonton, NJ (US);
Automatic Switch Company, Florham Park, NJ (US);
Abstract
A method of operating a solenoid valve can include applying power to a coil of the solenoid valve, interrupting power to the coil upon a first increase in power consumption of the coil, detecting a first on-time when power is applied to the coil, re-applying power to the coil upon a first condition becoming satisfied, interrupting power to the coil upon a second increase in power consumption of the coil, detecting a second on-time when power is re-applied to the coil, comparing the first on-time with the second on-time, and detecting when an armature of the solenoid valve has physically shifted based at least in part on the comparing. Detecting when the armature of the solenoid valve has physically shifted can include determining that the second on-time is greater than the first on-time.