Patents Assigned to Akzo Nobel Asphalt Applications, Inc.
  • Patent number: 6398453
    Abstract: A paving system having a strike-off assembly and method of manufacture is provided that distributes paving material onto a road surface. The strike-off assembly comprises a screed assembly comprised in a guide frame. The screed assembly comprises a flexible screed having a first and second surface secured in a screed track. The screed assembly may be disposed behind a mobile paving system to regulate the amount of paving material distributed onto the road surface and to ensure a generally even distribution of paving material across the road surface. After the surface of the flexible screed has become worn or damaged from use, the screed assembly may be removed and reversed such that the second surface is employed to regulate and distribute paving material onto the road surface.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: June 4, 2002
    Assignee: Akzo Nobel Asphalt Applications, Inc.
    Inventor: Calvin Lynn Stegemoeller
  • Patent number: 5980153
    Abstract: A telescoping auger shaft is provided that distributes slurry material throughout a spreader box of variable width in a paving system. The telescoping auger shaft comprises a first shaft positioned coaxially with and engaging a second shaft such that the second shaft is operable to extend with respect to the first shaft while remaining engaged with the first shaft. The two shafts can form a combined shaft of variable length. The telescoping auger shaft further comprises two sections of auger flighting, one coupled to the first shaft and one coupled to the second shaft. The two sections of auger flighting are operable to distribute slurry material in a spreader box when the first shaft and the second shaft are rotated. The first shaft includes a guide portion. A guide element is coupled to second shaft and engages with the guide portion. When the second shaft is extended with respect to the first shaft, the guide element can cause the second shaft to rotate with respect to the first shaft.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: November 9, 1999
    Assignee: Akzo Nobel Asphalt Applications, Inc.
    Inventors: Carl Dean Plemons, Calvin Lynn Stegemoeller