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Screed spreader box and compaction roller

  • US 5,190,400 A
  • Filed: 09/09/1991
  • Issued: 03/02/1993
  • Est. Priority Date: 12/05/1989
  • Status: Expired due to Fees
First Claim
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1. A spreading device for towing behind a traveling material mixer vehicle for applying a cold mixed paving material to a surface to be paved comprising:

  • (a) a frame of a width substantially equal to the width of said surface to be paved and having left and right sides;

    (b) an auger rotationally attached to said frame spaced above and substantially parallel to said surface to be paved for distribution of said cold mix paving material in a layer across and along said surface to be paved;

    (c) a rolling screed rotationally attached to said frame adjacent and substantially parallel to said auger means and spaced above said surface to be paved for spreading said cold mix paving material in a substantially flat layer across and along said surface to be paved;

    (d) a compression roller attached for rotation to said frame adjacent to said rolling screed and substantially parallel thereto; and

    (e) a pressure cylinder attached between said towing vehicle and said spreader box for applying pressure downwardly on said compaction roller while lifting upwardly on said towing vehicle.

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