Hermetically-sealed electrically-absorptive low-pass radio frequ

Details Hermetically-sealed electrically-absorptive low-pass radio frequ Hermetically-sealed electrically-absorptive low-pass radio frequ

1998-08-25

1999-08-24

Johnson, Stephen M.

Electric lamp and discharge devices

With electrical shield or static charge distribution means

313134, H01T 1305

Patent

active

059428422

ABSTRACT:
An electromagnetically lossy liquid- or gas-tight fusion seal for use as a low pass radio frequency signal filter constructed as a matrix of glass binder and ferrimagnetic and/or ferroelectric filler. Metal cased electrical filters are made by reflowing the material to form fused glass-to-metal seals and incorporating electrical thru-conductors therein which may be formed as inductive windings.

REFERENCES:
patent: 3562186 (1971-02-01), Kesten et al.
patent: 4568855 (1986-02-01), Nemeth et al.
patent: 4713582 (1987-12-01), Yamada et al.
patent: 4795944 (1989-01-01), Stimson
patent: 4855261 (1989-08-01), Mizuno et al.
patent: 4879065 (1989-11-01), Sterzel
patent: 5008584 (1991-04-01), Atsumi et al.

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