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:
Oct. 20, 1981
Filed:
Nov. 05, 1979
George H MacMaster, Lexington, MA (US);
Kenneth W Dudley, Sudbury, MA (US);
Raytheon Company, Lexington, MA (US);
Abstract
A dielectric heating oven having a set of parallel spaced electrodes alternately grounded and every ungrounded electrode fed by electromagnetic energy from a common source in an ISM band preferably from 13.56 megacycles to 40.68 megacycles. Food is placed on top of the electrodes and the depth of penetration of the electric fields into the food is a function of the phase relationship of the energized electrodes. When all energized electrodes are feed in the same phase, maximum field coupling is to the grounded electrodes between them resulting in high intensity searing electric fields close to the surface of the food. Deeper penetration cooking is accomplished by feeding adjacent energized electrodes 180.degree. out of phase so that maximum field coupling is between them rather to the grounded electrode between them. Still further penetration cooking results from feeding all adjacent energized electrodes 90.degree. out of phase so that maximum field coupling is to alternate energized electrodes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile