US PATENT SUBCLASS 378 / 127
.~.~.~ Temperature modification

Current as of: June, 1999
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378 /   HD   X-RAY OR GAMMA RAY SYSTEMS OR DEVICES

119  DF  SOURCE {3}
121  DF  .~ Electron tube {12}
125  DF  .~.~ With movable target {4}
127.~.~.~ Temperature modification {3}
128  DF  .~.~.~.~> With thermal impedance
129  DF  .~.~.~.~> With increased emissivity
130  DF  .~.~.~.~> With cooling fluid

DEFINITION

Classification: 378/127

Temperature modification:

(under subclass 125) Subject matter wherein means are provided to modify one or more temperatures within the tube, e.g., to decrease the operating temperature of the rotor bearings to prevent them from seizing.

(1) Note. Also included is subject matter having means comprising evaporable metal for transferring heat away from the focal spot to lower the maximum instantaneous local temperature on the target itself.

SEE OR SEARCH THIS CLASS, SUBCLASS:

141+, for X-ray tubes other than the movable target type with cooling means.

199+, for cooling means external to the X-ray tube.

SEE OR SEARCH CLASS

313, Electric Lamp and Discharge Devices,

11+, for temperature modification in discharge devices generally.