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:
Nov. 11, 2014
Filed:
Oct. 29, 2008
Vladimir V. Nadot, Sicklerville, NJ (US);
Joseph T. Belsh, Mount Laurel, NJ (US);
Mike Maochang Cao, Westampton, NJ (US);
Oleg S. Fishman, Maple Glen, PA (US);
Vladimir V. Nadot, Sicklerville, NJ (US);
Joseph T. Belsh, Mount Laurel, NJ (US);
Mike Maochang Cao, Westampton, NJ (US);
Oleg S. Fishman, Maple Glen, PA (US);
Inductotherm Corp., Rancocas, NJ (US);
Abstract
Apparatus and process for heating and melting a material in a susceptor vessel are provided wherein phase synchronized ac voltage is supplied from a separate power source to each one of at least two induction coils in separate zones around the vessel. Power magnitude from each source to an induction coil is controlled by pulse width control of the source's output voltage. Output frequency from each source is either fixed or variable based upon the electrically conductive state of the material. Optional electromagnetic stirring is achieved by establishing a phase shift between the voltage outputs of the power supplies after the material in the susceptor vessel has melted.