US PATENT SUBCLASS 315 / 5.52
.~.~.~.~ Device has a re-entrant portion surrounding the ray

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

1  DF  CATHODE RAY TUBE CIRCUITS {11}
3  DF  .~ Combined cathode ray tube and circuit element structure {2}
4  DF  .~.~ Inductor or distributed parameter-type inductive structure {2}
5  DF  .~.~.~ Ray passes in or through a hollow distributed parameter device {15}
5.52.~.~.~.~ Device has a re-entrant portion surrounding the ray

DEFINITION

Classification: 315/5.52

(under subclass 5) Subject matter wherein the hollow device has a portion of its wall extending inwardly towards an opposing wall, the portion surrounding the cathode-ray as it enters or leaves the device.

(1) Note. The purpose of the reentrant portion is to shorten the gap coupling the cathode-ray to the device, to shield the cathode-ray, and to increase the capacity of the device. Two reentrant portions are often provided, extending toward each other from opposing walls to provide the gap therebetween.

SEE OR SEARCH THIS CLASS, SUBCLASS:

5.51, for a hollow distributed parameter device with plural gaps, and having a reentrant portion surrounding the ray passing through the device.