3448993

Information

• Patent Grant
• 3448993

• References
• Source

• Patent Number

  3,448,993

• Date Filed

  Not available

• Date Issued

  Tuesday, June 10, 1969
  55 years ago

• CPC

  • B60G5/047 - at least one arm being resilient
  • B60G11/34 - including leaf springs
  • B62D21/186 - for building site vehicles or multi-purpose tractors
  • B62D49/005 - Tractors for semi-trailers
  • B62D53/045 - with rigid linkage in the horizontal plane
  • B62D53/068 - having devices to equalise or modify the load between the fifth wheel and the rear wheels
  • B62D53/0807 - adjustable coupling saddles mounted on sub-frames; Mounting plates therefor

• US Classifications

  • 280 - Land vehicles
  • 267 - Spring devices