US PATENT SUBCLASS 335 / 210
.~ Electron or ion beam deflecting type

Current as of: June, 1999
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335 /   HD   ELECTRICITY: MAGNETICALLY OPERATED SWITCHES, MAGNETS, AND ELECTROMAGNETS

209  DF  MAGNETS AND ELECTROMAGNETS {10}
210.~ Electron or ion beam deflecting type {3}
211  DF  .~.~> With magnetic shunt
212  DF  .~.~> With adjustable magnetic element (e.g., to change the air gap, or its position on the cathode ray tube)
213  DF  .~.~> With coil structure {1}

DEFINITION

Classification: 335/210

(under subclass 209) Subject matter relating to electronic or

ionic beam deflecting magnets.

(1) Note. The electromagnets and permanent magnets in this and the indented subclasses are adapted for use with electron or ion beam deflecting devices of Classes 250, Radiant Energy and 313, Electric Lamp and Discharge Devices. The electromagnet, for example, may be a beam sweeping magnet and the permanent magnet may be a positive ion deflecting magnet.

(2) Note. This subclass and indented subclasses, provide for the permanent magnet or electromagnet, per se, adapted for use with electron beam tubes but does not provide for the beam deflecting magnet in combination with significant details of the electron beam tube or the control circuit for the magnets or the electron beam tube. For such combinations, see the search notes below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

201, for electromagnetically actuated switches with arc suppression or extinguishing means.

SEE OR SEARCH CLASS 200, Electricity: Circuit Makers and Breakers,

10, for multiple circuit pivoted contact switches.

218, High-Voltage Switches With Arc Preventing and Extinguishing Devices,

1+, for switches in general with arc preventing and extinguishing magnets.

250, Radiant Energy,

281+, for ionic separation or analysis methods or apparatus which use magnets or electromagnets and subclasses 396+ for electron or ion beam deflection or focussing systems which use magnets or electromagnets.

313, Electric Lamp and Discharge Devices,

153+, and 364+, in particular 421+ for space discharge devices having electronic and ionic beam deflecting means.

315, Electric Lamp and Discharge Devices: Systems,

364+, for cathode ray tube systems having beam deflecting means.

337, Electricity: Electrothermally or Thermally Actuated Switches,

281, for fusible element type switches with magnetic blowout means.

361, Electricity: Electrical Systems and Devices,

134+, for lightning arresters having arc blowout magnets.