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Line marking machine with heaters

  • US 4,269,328 A
  • Filed: 03/05/1979
  • Issued: 05/26/1981
  • Est. Priority Date: 03/13/1978
  • Status: Expired due to Term
First Claim
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1. A line marking machine for applying lines of demarkation to a road surface or the like comprising:

  • a carriage adapted to be moved along said road surface;

    a hopper mounted on the carriage and adapted to contain a quantity of marking fluid, said hopper having a sloping bottom and adjoining walls, said adjoining walls including a rear wall spaced from said bottom to define a discharge opening through which the marking fluid can flow onto the road surface, said hopper further having parallel lower edge portions disposed to the rear of said discharge opening in a position to limit the width of a line formed as the marking fluid flows onto the road surface;

    gate means mounted on the hopper for opening and closing said discharge opening;

    operating means connected to said gate means for selectively positioning said gate means whereby to control the flow of marking fluid through said discharge opening;

    a casing having walls spaced from said bottom and said rear wall of said hopper to form a first heating chamber adjacent said bottom, and a second heating chamber adjacent said rear wall and said gate means; and

    heating means for heating the space within said heating chambers for maintaining the marking fluid located within said hopper and the marking fluid passing through said discharge opening within a predetermined temperature range.

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