3589078

Information

• Patent Grant
• 3589078

• References
• Source

• Patent Number

  3,589,078

• Date Filed

  Not available

• Date Issued

  Tuesday, June 29, 1971
  53 years ago

• CPC

  • B24B13/06 - grinding of lenses, the tool or work being controlled by information-carrying means
  • G05B19/311 - the positional error is used to control continuously the servomotor according to its magnitude
  • G05B2219/36366 - Data, read in, distribution
  • G05B2219/36575 - On tape reference and command signals
  • G05B2219/41326 - Step motor
  • G05B2219/43006 - Acceleration, deceleration control
  • G05B2219/43139 - VCO variable frequency oscillator or two oscilators with different frequency

• US Classifications

  • 451 - Abrading