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Slipform paving apparatus

  • US 3,970,405 A
  • Filed: 05/03/1974
  • Issued: 07/20/1976
  • Est. Priority Date: 05/03/1974
  • Status: Expired due to Term
First Claim
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1. A road building machine for forming finished grade concrete roads, comprising:

  • a frame assembly;

    slipform means carried by the frame assembly for receiving the concrete and defining the sides of the road;

    spreading means carried by the frame assembly for transversely equalizing the depth of the concrete initially received by the slipform means;

    vibrator means carried by the frame assembly for vibrating and densifying the concrete being spread by the spreading means;

    strike off assembly carried by the frame assembly disposed behind the vibrator means;

    grout screed means carried by the frame assembly behind the strike off assembly for effecting an aggregate density gradient in the concrete; and

    profile pan means connected to the frame assembly and held in spatial relationship therefrom for molding the concrete in cooperation with the slipform means.

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