Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Reexamination Certificate
2006-07-04
2006-07-04
A, Minh Dieu (Department: 2821)
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
C330S043000
Reexamination Certificate
active
07071624
ABSTRACT:
A microwave tube has a configuration in which the connection between an anode electrode and the helix is cut, the helix is grounded, and a current suppression element is provided between the anode electrode and ground voltage for suppressing the continuous time interval of the flow of an excess current to the helix that is caused by discharge to a time interval range that does not threaten damage to the helix, i.e., to a time interval range in which an alarm signal is not supplied.
REFERENCES:
patent: 3760223 (1973-09-01), Jasper, Jr.
patent: 3780252 (1973-12-01), Crapuchettes
patent: 6777876 (2004-08-01), Kobayashi et al.
patent: 6909235 (2005-06-01), Wolkstein et al.
patent: 61-157251 (1986-09-01), None
patent: 2-110944 (1990-09-01), None
patent: 4-301342 (1992-10-01), None
patent: 5-347128 (1993-12-01), None
A Minh Dieu
NEC Microwave Tube, Ltd.
Young & Thompson
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