2870310

Information

• Patent Grant
• 2870310

• References
• Source

• Patent Number

  2,870,310

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1959
  65 years ago

• CPC

  • H01L31/00 - Semiconductor devices sensitive to infra-red radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation Processes or apparatus peculiar to the manufacture or treatment thereof or of parts thereof Details thereof
  • G01K1/024 - for remote indication
  • G01K5/00 - Measuring temperature based on the expansion or contraction of a material
  • G05D23/2034 - the sensing element being a semiconductor
  • G08B17/06 - Electric actuation of the alarm
  • G08G1/04 - using optical or ultrasonic detectors
  • H03B5/1203 - the amplifier being a single transistor
  • H03B5/1231 - the amplifier comprising one or more bipolar transistors
  • H03B5/1296 - the feedback circuit comprising a transformer

• US Classifications

  • 327 - Miscellaneous active electrical nonlinear devices, circuits, and systems
  • 324 - Electricity: measuring and testing
  • 331 - Oscillators
  • 361 - Electricity: electrical systems and devices
  • 374 - Thermal measuring and testing