LIQUID BLACKTOP SEALER MACHINE

• US 3,841,779 A
• Filed: 10/02/1972
• Issued: 10/15/1974
• Est. Priority Date: 10/02/1972
• Status: Expired due to Term

• Current Assignee: Thelma L. Ray
• Original Assignee: Thelma L. Ray
• Inventors: Ray, Thelma L.
• Primary Examiner(s): Schultz, William H.
• Assistant Examiner(s): Holko, Thomas J.
• Application Number:
  US05/294,471
• Time in Patent Office: 743 Days
• Field of Search: 404/93,94,107,108,111 401/22,48,137,138,139 15/117 239/147
• US Class Current: 404/111
• CPC Class Codes: E01C 19/17 Application by spraying or throwing
• CPC Class Codes: E01C 19/178 Elements or attachments for spreading-out or smoothing-down the applied material, e.g. brushes

Abstract

A machine of the manual push type particularly adapted for spreading liquid blacktop sealer on driveways and the like. The machine includes a supply tank for the sealer, a set of wheels supporting the supply tank, a rear swivel wheel, and a handle, all of which allows the supply tank to be easily pushed, and guided as desired, over the blacktop surface to be coated. A discharge manifold is connected to and extends outward from the supply tank, the manifold being oriented relative to the wheels so as to be at right angles to the push path of the machine when it is being used. The discharge manifold deposits the sealer in a relatively wide swath on the blacktop, and is located just in front of a doctor blade/brush unit that is positioned parallel to the manifold. The docter blade/brush combination provides a dual function in that the docter blade acts as a rought spreader (and prevents sealer buildup in the broom), and the broom acts as a finish spreader, for the sealer coating as it is laid down. This structure allows the operator to walk off to the side, i.e., not directly on, the sealer coating as it is laid down by the machine so that the operator'"'"''"'"'s shoes do not get covered with the sealer, and so that the operator does not make tracks in the sealer that has just been laid down.

Claims

1. A machine for spreading liquid blacktop sealer on a blacktop surface comprising a supply tank for the blacktop sealer mounted on a wheeled suspension system that allows said tank to be rolled over the blacktop surface to be coated, said wheeled suspension system including two main wheels for said supply tank, and a swivel wheel located rearwardly of said two main wheels in a plane substantially perpendicular to the rotational axis of said main wheels, said plane lying on the centerline of said supply tank, a handle connected with the supply tank and wheeled suspension system for manually moving the spreader as desired on the blacktop surface to be coated, a discharge manifold extending outwardly at substantially right angles relative to a walking path of the machine'"'"''"'"'s user, said manifold being disposed beneath said supply tank and connected to said supply tank at the bottom thereof, and said manifold being adapted to discharge the blacktop sealer directly onto the blacktop surface, a flexible docter blade and a brush aligned parallel with the manifold, and positioned rearwardly thereof and fixedly connected to said suspension system, for smoothing the blacktop sealer discharged onto the blacktop surface in a relatively even coating, said docter blade being positioned immediately in front of said brush so that said brush prevents undo rearward flexure of same as said machine is pushed along the blacktop surface, and a hand valve directly connected to said discharge manifold, the flow of blacktop sealer through said discharge manifold being manually regulated by use of said hand valve.