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Apparatus for applying liquid surface sealer

  • US 4,725,163 A
  • Filed: 04/07/1986
  • Issued: 02/16/1988
  • Est. Priority Date: 04/07/1986
  • Status: Expired due to Term
First Claim
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1. Apparatus for spreading and leveling liquid surface coatings on a generally level surface including in combination:

  • a mobile hopper for dispensing at a controlled rate a viscous coating liquid along the path of travel of the hopper in the form of globules and droplets, anda spreading and leveling attachment pivotally connected to and adapted to be towed by said hopper, said attachment comprising;

    a frame;

    a flexible resilient spreading blade mounted on said frame closely spaced from the surface to be coated and having a pair of arms angularly disposed relative to one another and intersecting to define an apex at approximately the centerline of said path of travel, said apex extending toward the direction of travel and said arms defining an angle bisected by said centerline whereby said arms spread and flatten said globules and droplets on said surface in both longitudinal and laterally outward directions in a band over a portion of the surface to be coated; and

    a flexible resilient smoothing blade mounted on said frame and spaced rearwardly from said spreading blade relative to said path of travel and having a width greater than the span defined by said arms, said smoothing blade being engageable with said surface to smooth said viscous liquid that has been spread and flattened by said spreading blade into a thin continuous coating that is greater in width than the span between the outer ends of said spreading blade.

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