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:
May. 24, 1977
Filed:
Nov. 13, 1975
Jimmy R Rickard, Mansfield, OH (US);
The Tappan Company, Mansfield, OH (US);
Abstract
An electrical circuit provides continuous or intermittent energization of an electric apparatus, such as a magnetron that generates microwave energy for use in in a microwave oven or the like. When continuously energized the magnetron produces a maximum power output, for example, to cook a food load in the microwave oven; and when intermittently energized the magnetron produces a lower average microwave energy power level to cook food at a relatively slower rate and/or to defrost frozen food efficiently without cooking the outer surface thereof, as the brief off time during each complete cycle of the intermittently energized magnetron allows some temperature equilibration through the food product. The electrical circuit includes a cycling switch mechanism for such intermittent energization of the magnetron and a mechanical lock-out for biasing the switch mechanism to supply continuous energy to the magnetron.