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:
Jul. 22, 2014
Filed:
Nov. 04, 2010
Applicant:
Ted Casper, West Bend, WI (US);
Inventor:
Ted Casper, West Bend, WI (US);
Assignee:
Leco Corporation, St. Joseph, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F27B 14/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A resonant power supply () for use with high inductive loads includes an input rectifier () and a switching inverter formed using a plurality of parallel connected half bridge networks for switching the voltage provided from the input rectifier (). A transformer () is used whose primary is connected to the switching inverter and whose secondary is connected to load such as a crucible (). A capacitor () is used in series with the primary of the transformer () for resonating the inductance in the secondary circuit at the frequency of the switching inverter to provide maximum power transfer to the crucible ().