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:
Apr. 21, 2015
Filed:
Mar. 16, 2011
Zbigniew G. Lassota, Long Grove, IL (US);
Zbigniew G. Lassota, Long Grove, IL (US);
Food Equipment Technologies Company, Inc., Lake Zurich, IL (US);
Abstract
A beverage warming assembly () with a non-ferromagnetic, transparent heat carafe () having an induction heating assembly () attached to the bottom () by a threaded fastener () formed of a generally planer, induction ferromagnetic heating element () with a top and a bottom, and an insulating member () interposed between the carafe bottom () and the bottom of the induction heating element () to thermally insulate the bottom () from he induction heating element (), to enable relative movement between the induction heating element () and the bottom () and to seal a fastener hole () against leaks. Different levels of heating are achieved by connecting a high frequency voltage signal from a generator () to different inputs along the length of the coil induction coil () in response to actuation of heating level selection switches (). An AC power circuit breaker () removes power in response to actuation of a power switch () or when an input current detector () senses a current level that exceeds a preselected level.