3574292

Information

• Patent Grant
• 3574292

• References
• Source

• Patent Number

  3,574,292

• Date Filed

  Not available

• Date Issued

  Tuesday, April 13, 1971
  54 years ago

• CPC

  • G05B19/232 - with speed feedback only
  • G05B2219/36534 - Manual input overrides automatic control
  • G05B2219/37275 - Laser , interferometer
  • G05B2219/37313 - Derive speed from position
  • G05B2219/41301 - Pilot valve, linear fluid control valve and power cylinder
  • G05B2219/43179 - Speed changes gradualy from constant value to zero
  • G05B2219/43194 - Speed steps, switch over as function of position

• US Classifications

  • 091 - Motors: expansible chamber type
  • 356 - Optics: measuring and testing