2922940

Information

• Patent Grant
• 2922940

• References
• Source

• Patent Number

  2,922,940

• Date Filed

  Not available

• Date Issued

  Tuesday, January 26, 1960
  64 years ago

• CPC

  • G05B19/40 - Open loop systems
  • H03M1/485 - for position encoding
  • G05B2219/33268 - D-A, A-D
  • G05B2219/34057 - Complement
  • G05B2219/36366 - Data, read in, distribution
  • G05B2219/36368 - Tape reader
  • G05B2219/36587 - Binary format
  • G05B2219/37471 - Resolver, synchro
  • G05B2219/43139 - VCO variable frequency oscillator or two oscilators with different frequency
  • G05B2219/43183 - Speed control, input is the reference, but no feedback
  • Y10T409/300896 - with sensing of numerical information and regulation without mechanical connection between sensing means and regulated means [i.e., numerical control]

• US Classifications

  • 318 - Electricity: motive power systems
  • 250 - Radiant energy
  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 331 - Oscillators
  • 341 - Coded data generation or conversion
  • 361 - Electricity: electrical systems and devices
  • 409 - Gear cutting, milling, or planing