2940020

Information

• Patent Grant
• 2940020

• References
• Source

• Patent Number

  2,940,020

• Date Filed

  Not available

• Date Issued

  Tuesday, June 7, 1960
  64 years ago

• CPC

  • H01J23/00 - Details of transit-time tubes of the types covered by group H01J25/00
  • H01J23/065 - producing a solid cylindrical beam
  • H01J23/083 - Electrostatic focusing arrangements
  • H01J23/087 - Magnetic focusing arrangements
  • H01J23/0876 - with arrangements improving the linearity and homogeniety of the axial field
  • H01J23/26 - Helical slow-wave structures Adjustment therefor
  • H01J23/30 - Damping arrangements associated with slow-wave structures
  • H01J25/38 - the forward travelling wave being utilised
  • H01P5/08 - for linking dissimilar lines or devices
  • H01Q11/08 - Helical aerials
  • H03C3/30 - by means of transit-time tube
  • H04M19/02 - providing ringing current or supervisory tones

• US Classifications

  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets