×

Apparatus for roadway surface reclaiming drum

  • US 5,842,747 A
  • Filed: 02/24/1997
  • Issued: 12/01/1998
  • Est. Priority Date: 02/24/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. An apparatus for use on a cylindrical surface portion of a drum of a roadway surface reclaiming machine, adapted to be rotated in a cutting direction about a cylindrical axis defined by the drum, the apparatus comprising a plurality of flighting sections and means for mounting the flighting sections to the cylindrical surface portion so that the flighting sections generally helically wind around the cylindrical surface portion at an included angle of about 40°

  • to about 60°

    with respect to the cylindrical axis and converge at a lateral central portion of the cylindrical surface portion, the flighting sections having a radially outermost portion defining a plurality of openings adapted to receive at least one cutter bit wherein at least one of the openings is tapped, at least one cutter bit insert defining an interior bore for receiving at least one cutter bit and having external threads capable of threaded engagement within one of the at least one tapped opening, and a threaded jamming fastener for threaded engagement within one of the at least one tapped opening and capable of bearing against one of the at least one cutter bit insert thereby securing one of the at least one cutter bit insert to at least one of the flighting sections against relative rotational movement which would cause disengagement therefrom.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×