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 12706254 B1

Date of Patent:

Aug. 11, 2026

Filed:

Dec. 15, 2023

Warewash machine or other food equipment machine with contactor monitoring system

Applicant:

Illinois Tool Works Inc., Glenview, IL (US);

Inventors:

Leszek P. Byczkowski, Fairborn, OH (US);

Alexander R. Anim-Mensah, Dayton, OH (US);

Assignee:

ILLINOIS TOOL WORKS INC., Glenview, IL (US);

Attorney:

THOMPSON HINE LLP

Primary Examiner:

Kevin J Comber

Int. Cl.

CPC ...

H01H 1/00 (2006.01); A47L 15/00 (2006.01); A47L 15/42 (2006.01); A47L 15/46 (2006.01);

U.S. Cl.

CPC ...

H01H 1/0015 (2013.01); A47L 15/0049 (2013.01); A47L 15/4285 (2013.01); A47L 15/4287 (2013.01); A47L 15/46 (2013.01); A47L 2401/12 (2013.01); A47L 2401/30 (2013.01); A47L 2501/05 (2013.01); A47L 2501/06 (2013.01); A47L 2501/26 (2013.01); A47L 2501/32 (2013.01);

Abstract

A food equipment device, such as a warewasher, includes a powered component, the powered component being one of a heating element or a pump or a fan, and a power line path for delivering power to the powered component. A contactor is provided for controlling power delivery to the powered component, the contactor including main power contacts connected in the power line path and auxiliary contacts that operate the same as, or opposite to, the main power contacts. A monitoring system is operatively connected to the auxiliary contacts to monitor an open or closed state of the auxiliary contacts and includes a voltage source operatively connected to one of the auxiliary contacts and an electrical sensor for detecting one of (i) a voltage condition of the other auxiliary contact or (ii) a current flow condition between the auxiliary contacts.

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Byczkowski, Leszek. (2026). Warewash machine or other food equipment machine with contactor monitoring system (U.S. Patent No. 12706254). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12706254

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