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:
Aug. 09, 1977
Filed:
Oct. 21, 1975
Donald G Moore, Glencoe, IL (US);
Chemetron Corporation, Chicago, IL (US);
Abstract
A tray for use in an electromagnetic oven supplying differing quantities of electromagnetic energy to a variety of load items which are located within the oven cavity. A food or material bearing tray inserted into the oven positions a conductive energy shield to interfit with elements on the tray to isolate selected items from the electromagnetic energy. The conductive shield cooperates with a shaped interior wall of the oven to provide a desired non-uniform distribution of electromagnetic energy over those regions of the tray which are not shielded. An improved sensor assembly located on the tray controls an assembly in the oven to inhibit and terminate the heat cycle as desired. The tray further includes conductive base strips with upstanding flange members defining the shielded region with the base strips recessed into the surface of the tray to prevent energy from entering into this shielded area. Where the upstanding flanges meet the base strip, a molded lip is provided in the tray surface to form a seal preventing food and miscellaneous other materials from accumulating or entering this area. The tray is provided with extending portions or feet located at the edges of the tray that contact supporting rails in a storage rack upon insertion and removal. The feet facilitate handling of the loaded trays when stacked and maintain the trays in a nearly level manner during insertion and removal. The feet have a surface designed to cooperate with the contacting surfaces of the storage racks.