Wave transmission lines and networks – Plural channel systems – Nonreciprocal gyromagnetic type
Reexamination Certificate
2009-06-05
2011-11-15
Jones, Stephen (Department: 2817)
Wave transmission lines and networks
Plural channel systems
Nonreciprocal gyromagnetic type
C333S024200
Reexamination Certificate
active
08058944
ABSTRACT:
A microwave circulator having an outer metal housing with a cavity containing at least one magnet and an annular centring arrangement interposed between the outside of the magnet and the cavity. The centring arrangement includes first and second solid metal rings, the two rings having cooperating inclined faces arranged such that when a force is applied to urge the centring arrangement along the cavity, one ring is displaced outwardly into intimate contact with the inside of the cavity.
REFERENCES:
patent: 3935549 (1976-01-01), Jachowski
patent: 4551693 (1985-11-01), Guidevaux
patent: 6793746 (2004-09-01), Shimizu et al.
patent: 2003/0112089 (2003-06-01), Jun et al.
patent: 2004/0127103 (2004-07-01), Kim et al.
Inglis Malcolm William
McNeill Alan Alexander
Robertson Grant David
Jones Stephen
Smiths Group PLC
The Belles Group P.C.
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