H - Electricity – 05 – B
Patent
H - Electricity
05
B
327/2.3
H05B 6/64 (2006.01) F24C 7/02 (2006.01) H05B 6/76 (2006.01)
Patent
CA 1102883
"MICROWAVE GENERATING DEVICE--DOOR SEAL" ABSTRACT OF THE DISCLOSURE A microwave generating device includes a cabinet defin- ing a cavity provided with an opening with an edge portion of the cabinet defining the periphery of the opening. A closure im- pervious to microwave energy extends removably across the opening and includes a peripheral portion overlying the cabinet edge portion. Structure is provided for preventing loss of microwave energy outwardly between the closure peripheral portion and the cabinet opening edge portion including cooperating surface portions on the closure peripheral portion and cabinet opening edge portion facially juxtaposed when the closure is disposed across the opening to define a capacitive seal against trans- mission of microwave energy outwardly therebetween. A metallic frame extends about the closure peripheral portion and includes a recess opening toward the capacitive seal to define a wave trap having a length preselected to be effectively one-quarter the wavelength of the microwave energy. An electrically conduc- tive seal embraces the closure peripheral portion within the frame. A microwave energy seal is provided between the frame and the cabinet opening edge portion outwardly of the capacitive seal, and means defining a radiator in centered relationship to the wave trap recess of the frame is also provided. A second capacitive seal may be provided between the frame and the cabinet edge portion outwardly of the first capacitive seal and inwardly adjacent the outer microwave energy seal.
291632
Corporation Whirlpool
Kirby Eades Gale Baker
LandOfFree
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