Method of making microwave heating apparatus

Details Method of making microwave heating apparatus Method of making microwave heating apparatus

1990-11-20

1991-10-15

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055A, 295921, H05B 670

Patent

active

050576607

ABSTRACT:
A method for forming a waveguide for a microwave heating apparatus is provided wherein the microwave heating apparatus has a heating chamber including two openings in communication with an exterior of the heating chamber. The method comprises the steps of covering an exterior surface of the heating chamber extending between the two openings with a guide plate and forming a guide plate having a substantially prism body and an open major side extending between longitudinal ends of the box. The guide box is provided with a substantially round opening in a major surface opposite to the major open side of the guide box for receiving a microwave antenna. The guide box is attached to the exterior surface of the heating chamber so as to enclose the two openings of the heating chamber with the open major side of the guide box facing the guide plate to form a waveguide having at least a pair of power feed ports.

REFERENCES:
patent: 2704802 (1955-03-01), Blass et al.
patent: 3210511 (1965-10-01), Smith
patent: 4159406 (1979-06-01), Tate et al.
patent: 4733037 (1988-03-01), Nitta et al.

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