3612840

Information

• Patent Grant
• 3612840

• References
• Source

• Patent Number

  3,612,840

• Date Filed

  Not available

• Date Issued

  Tuesday, October 12, 1971
  53 years ago

• CPC

  • G05B19/353 - with speed feedback only
  • G05B2219/41036 - Position error in memory, lookup table for correction actual position
  • G05B2219/41309 - Hydraulic or pneumatic drive
  • G05B2219/41461 - Phase counter and phase discriminator, phase locked motion
  • G05B2219/49169 - Compensation for temperature, bending of tool
  • G05B2219/49219 - Compensation temperature, thermal displacement

• US Classifications

  • 318 - Electricity: motive power systems
  • 700 - Data processing: generic control systems or specific applications