1797864

Information

• Patent Grant
• 1797864

• References
• Source

• Patent Number

  1,797,864

• Date Filed

  Not available

• Date Issued

  Tuesday, March 24, 1931
  94 years ago

• CPC

  • B65G51/44 - without mechanical contact between carriers and controllers
  • B65G51/38 - Contact devices on interior of tubes for detecting passage of carriers
  • B65G51/42 - according to indications on carriers

• US Classifications

  • 406 - Conveyors: fluid current
  • 104 - Railways
  • 186 - Merchandising
  • 198 - Conveyors: power-driven
  • 246 - Railway switches and signals
  • 324 - Electricity: measuring and testing
  • 361 - Electricity: electrical systems and devices