3523631

Information

• Patent Grant
• 3523631

• References
• Source

• Patent Number

  3,523,631

• Date Filed

  Not available

• Date Issued

  Tuesday, August 11, 1970
  54 years ago

• CPC

  • B21C47/003 - Regulation of tension or speed; Braking
  • B21C47/34 - Feeding or guiding devices not specially adapted to a particular type of apparatus
  • B21C47/345 - for monitoring the tension or advance of the material
  • B21C47/3475 - Fluid pressure or vacuum
  • B21C47/3483 - Magnetic field
  • B21D43/18 - by means in pneumatic or magnetic engagement with the work
  • H02K41/025 - Asynchronous motors
  • H02N13/00 - Clutches or holding devices using electrostatic attraction

• US Classifications

  • 226 - Advancing material of indeterminate length