2493721

Information

• Patent Grant
• 2493721

• References
• Source

• Patent Number

  2,493,721

• Date Filed

  Not available

• Date Issued

  Tuesday, January 3, 1950
  75 years ago

• CPC

  • H02K49/043 - with a radial airgap
  • F16D13/08 - with a helical band or equivalent member, which may be built up from linked parts, with more than one turn embracing a drum or the like, with or without an additional clutch actuating the end of the band
  • F16D23/04 - with an additional friction clutch
  • F16D27/00 - Magnetically- or electrically- actuated clutches Control or electric circuits therefor
  • F16D27/025 - and with a helical band or equivalent member co-operating with a cylindrical coupling surface
  • F16D27/105 - with a helical band or equivalent member co-operating with a cylindrical coupling surface

• US Classifications

  • 310 - Electrical generator or motor structure
  • 235 - Registers