3767992

Information

• Patent Grant
• 3767992

• References
• Source

• Patent Number

  3,767,992

• Date Filed

  Not available

• Date Issued

  Tuesday, October 23, 1973
  51 years ago

• CPC

  • G05B1/06 - continuous sensing
  • G01D5/22 - differentially influencing two coils
  • G01D5/34 - the beams of light being detected by photocells
  • G01R17/02 - Arrangements in which the value to be measured is automatically compared with a reference value
  • G05B1/04 - with sensing of the position of the pointer of a measuring instrument
  • G05D25/00 - Control of light

• US Classifications

  • 318 - Electricity: motive power systems
  • 250 - Radiant energy
  • 324 - Electricity: measuring and testing