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:
Jan. 24, 2012
Filed:
Jan. 08, 2008
Zoltan Bogdan, Crestwood, KY (US);
Zoltan Bogdan, Crestwood, KY (US);
Thermex-Thermatron, LP, Louisville, KY (US);
Abstract
A vestibule for use with a microwave oven having a conveyor mechanism passing there-through is designed to prevent microwave radiation from escaping to the surrounding atmosphere. The vestibule includes a choke region and a paddlewheel region with a trap region located directly there-between. The choke region includes a series of quarter wave choke networks or devices and the trap region includes a body having quarter wave chokes with microwave absorbent materials disposed therein which absorb microwave radiation that has passed through the choke region. The paddlewheel region includes at least two pairs of paddlewheels that are synchronized with the conveyor mechanism and each other to permit individual products to enter an open end of the vestibule while preventing microwave radiation from escaping therefrom. The paddlewheels are synchronized such that while one pair of paddlewheels is in an open state, the other pair is in the closed state.