3122316

Information

• Patent Grant
• 3122316

• References
• Source

• Patent Number

  3,122,316

• Date Filed

  Not available

• Date Issued

  Tuesday, February 25, 1964
  60 years ago

• CPC

  • B61D27/0045 - Electric heating
  • B60L1/02 - to electric heating circuits
  • G05D23/1912 - whose output amplitude can take more than two discrete values
  • G05D23/24 - the sensing element having a resistance varying with temperature
  • B60L2200/26 - Rail vehicles

• US Classifications

  • 236 - Automatic temperature and humidity regulation
  • 219 - Electric heating
  • 361 - Electricity: electrical systems and devices