3639767

Information

• Patent Grant
• 3639767

• References
• Source

• Patent Number

  3,639,767

• Date Filed

  Not available

• Date Issued

  Tuesday, February 1, 1972
  53 years ago

• CPC

  • G06K11/02 - Automatic curve followers
  • B23Q35/128 - Sensing by using optical means
  • G05B2219/43129 - Speed as function of curvature, in curves, corners smaller than in straight line
  • G05B2219/4715 - Second photocell in advance of first, to control speed or other operation

• US Classifications

  • 250 - Radiant energy
  • 318 - Electricity: motive power systems