Turf colouring system and method

Abstract

Abstract A turf colouring system for colouring an area of turf including: pressurising means that delivers liquid colourant to a plurality of laterally spaced sprayers for receiving liquid colourant, the sprayers each having a nozzle to produce one of an atomized or a vaporized mist of colourant in spray patterns that overlap between adjacent sprayers of the plurality of laterally spaced sprayers; and a shroud enclosing the nozzles to create a positive pressure chamber for the spray patterns in use, where the shroud includes a flexible skirt extending down onto or adjacent ground to thereby form the positive pressure chamber by substantially sealing between the shroud and the ground, the flexible skirt including an anterior, posterior and side portions around a periphery of the shroud. 20 23 23 31 13 2 0 Se p 20 23 2023233113 20 Sep 2023 shroud.

Claims

1. A turf colouring system including:pressurising means that delivers liquid colourant along a delivery hose;a plurality of laterally spaced sprayers that receive liquid colourant via the delivery hose, the sprayers each having a nozzle that generate one of an atomized or a vaporized mist of colourant in spray patterns that overlap between adjacent sprayers of the plurality of laterally spaced sprayers, where each of the plurality of laterally spaced sprayers are disposed in a plane in a substantially horizontal relationship a prescribed distance above ground; anda shroud enclosing the nozzles to create a positive pressure chamber for the spray patterns in use, where the shroud includes:a rigid first portion; anda flexible second portion extending from the first portion towards a surface of the ground so that the nozzles are circumscribed by the first portion and the second portion which provides a substantially continuous sealing with the ground, the second portion being formed by a skirt including an anterior, posterior and side portions around the first rigid portion, the anterior, posterior and side portions terminating above or just touching the ground when the nozzles are at said prescribed distance from the ground.

2. The turf colouring system as claimed in claim 1, wherein the posterior portion is longer than the anterior and side portions whereby an end of the posterior trailing portion glides over the turf as the sprayers are disposed laterally with the nozzles at said prescribed distance from the ground.

3. The turf colouring system of claim 1 or 2, wherein the pressurizing means is a hydraulic pressurizing means that provides delivery of the colourant to said sprayers at a hydraulic pressure greater than 1000 psi.

4. A turf colouring method, including: delivering liquid colourant to a plurality of laterally spaced sprayers at a pressure sufficient to generate a mist through atomization orvaporization of the liquid colourant from nozzles of the sprayers to produce spray patterns that overlap between adjacent nozzles; and enclosing the nozzles and spray patterns beneath a shroud that provides a positive pressure chamber between the shroud and ground, wherein the positive pressure chamber is formed within a lower flexible skirt2023233113 20 Sep 2023around a periphery of the shroud, the lower flexible skirt having an anterior, posterior and side portions that terminate distally marginally above or just touching the ground.

5. The method of claim 4, including delivering liquid colourant to the plurality of laterally spaced sprayers at an hydraulic pressure greater than 1000 psi.

6. A turf colouring system for colouring an area of turf including:pressurising means that delivers liquid colourant to a plurality of laterally spaced sprayers for receiving liquid colourant, the sprayers each having a nozzle to produce one of an atomized or a vaporized mist of colourant in spray patterns that overlap between adjacent sprayers of the plurality of laterally spaced sprayers; anda shroud enclosing the nozzles to create a positive pressure chamber for the spray patterns in use, where the shroud includes a flexible skirt extending down onto or adjacent ground to thereby form the positive pressure chamber by substantially sealing between the shroud and the ground, the flexible skirt including an anterior, posterior and side portions around a periphery of the shroud.The Lawn & Turf Company Pty LtdPatent Attorneys for the Applicant / Nominated PersonSPRUSON & FERGUSON

Images