Apparatus for shielding unnecessary electromagnetic waves in a m

Details Apparatus for shielding unnecessary electromagnetic waves in a m Apparatus for shielding unnecessary electromagnetic waves in a m

1993-03-16

1995-04-11

Yusko, Donald J.

Electric lamp and discharge devices

With electrical shield or static charge distribution means

315242, 315356, 315 85, 315 3951, H01J 152

Patent

active

054061679

ABSTRACT:
This invention relates to an unnecessary electromagnetic wave shielding structure of a magnetron for a microwave oven, comprising an electric wave absorbent filament ceramic disposed adjacent the lower end of a power input section to prevent unnecessary electromagnetic waves produced in an active space from being leaked from the input section through a center lead extending downwardly from an upper end shield of the active space and a side lead disposed adjacent the center lead; first and second ferrite cores having different frequency characteristics and inserted concentrically over the filament ceramics at the respective upper and lower sides of the outer periphery thereof to cooperate with the ceramics to shield the unnecessary electromagnetic waves; and an annular insulator placed between the second ferrite core and filament terminals to insulate the ferrite core from the terminals.

REFERENCES:
patent: 3728573 (1973-04-01), Roeber
patent: 4156829 (1979-05-01), Harada
patent: 4300072 (1981-11-01), Tashiro et al.
patent: 4659891 (1987-04-01), Yamaguchi et al.
patent: 4720658 (1988-01-01), Tsuzurahara
patent: 4752720 (1988-06-01), Oguro et al.
patent: 5021713 (1991-06-01), Uesawa et al.

Affiliated with

Also associated with

Rating

Apparatus for shielding unnecessary electromagnetic waves in a m does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for shielding unnecessary electromagnetic waves in a m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for shielding unnecessary electromagnetic waves in a m will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1540939