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. 02, 2026
Filed:
Jan. 22, 2024
Komatsu America Corp., Chicago, IL (US);
Gerald Murray Brown, Cedarville, OH (US);
Terminal Power LLC, Cedarville, OH (US);
Abstract
A hybrid fault protection circuit (HFPC) includes an input, an output, a resistor-fuse circuit, an electrically-controlled safety switching device (ESSD) and an overload protection module (OPM). The input receives power from a power source. The output outputs power to a high-power cyclical load. The resistor-fuse circuit includes a resistor and one or more fuses collectively being connected in series with the resistor. The ESSD includes a coil and contacts. The contacts are connected in parallel with the resistor-fuse circuit. The OPM: arms the HFPC by energizing the coil and closing the contacts to supply load current from the input to the output via the contacts when a fault downstream from the HFPC does not exist; detects a fault downstream from the HFPC; and, in response to detecting the fault, opens the contacts to cause fault current to pass through the one or more fuses and not across the contacts.