Magnetron with relatively fixed yoke and cooling block by...

Details Magnetron with relatively fixed yoke and cooling block by... Magnetron with relatively fixed yoke and cooling block by...

2008-04-25

2010-12-21

Santiago, Mariceli (Department: 2879)

Electric lamp and discharge devices

With magnetic device

C313S160000, C315S039510, C315S039630, C315S039670, C315S039710

Reexamination Certificate

active

07855495

ABSTRACT:
A gap is provided between a cooling block22and a magnetic yoke20. A cushioning material25is interposed in the gap to fix the cooling block22relatively to the magnetic yoke20by screws. Thus, even when metals having a large difference in tendency of ionization are used in the cooling block22and the magnetic yoke20, the corrosion of the metals hardly arises. Further, the cushioning material25is provided in the gap between the cooling block22and the magnetic yoke20, so that an impact or vibration to an anode tubular member10can be mitigated and the disconnection and deficiency of the filament of a cathode structural member can be reduced. Further, since a dimensional unevenness of the cooling block22or the magnetic yoke20can be absorbed by the cushioning material25, the dimensional accuracy of parts does not need to be improved to make an assembly easy.

REFERENCES:
patent: 4395657 (1983-07-01), Tada et al.
patent: 5334302 (1994-08-01), Kubo et al.
patent: 5508583 (1996-04-01), Lee
patent: 03-297034 (1991-12-01), None
patent: 04-284334 (1992-10-01), None
patent: 09205243 (1997-08-01), None
patent: 2000-285817 (2000-10-01), None
Extended European Search Report issued in European Patent Application No. EP 08 15 4702.8 dated Jan. 28, 2010.

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