Movable or removable closures
Patent
1994-03-30
1996-01-09
Eisenzopf, Reinhard J.
Movable or removable closures
455115, H04B 104
Patent
active
054836832
ABSTRACT:
A changeover device provides for contactless interchange of power between an r.f. source such as a transmitter Tx.sub.1 and two loads, such as an aerial 2 and a test load 3. The device may be used in a changeover system for exchanging main and standby transmitters in the event of failure of the main transmitter between the aerial and a test load, or for connecting transmitters in parallel in such a way as to leave them well matched in the event of failure of one while permitting half power operation from the surviving transmitter.
REFERENCES:
patent: 2534624 (1950-12-01), Posthumus
patent: 4602227 (1986-07-01), Clark et al.
patent: 4851796 (1989-07-01), Hendriks
Banks-Harold Marsha D.
Eisenzopf Reinhard J.
GEC--Marconi Limited
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