AU615646B2 - Improvements in/or relating to boom sprays - Google Patents

Description

A U, MA LIA PATENTS ACT T952 COMPLETE

SPECIFICATION

(ORIGINAL)

FOR OFFICE USE: Application Number. Class Int. Class Lodged: Complete Specification Lodged: Accepted: Published: PATENT OFFICE PA T OFFICEN Priority: F .elated Art: UN HUNdIE I iLOIS FORTY DOLLARS Name of.-Applicant(s): DENNIS MICHAEL BOYANICH and HEATHER NLAY BOYANICH Address of Applicant's): 9 Butcher Street BRUCE ROCK, WESTERN AUSTRALIA, AUSTRALIA, 6418 Actual Inventors): DENNIS MICHAEL BOYANICH Address for Service: Kelvinf Lord Co., 4 Douro Place, VTEST PERTH, Western Australia 6005.

Complete Specification for the in-venton entitled: "IMPROVEMENTS IN/OR RELATING TO BOOM SPRAYS".

oftm/u 2 The present invention relates to boom sprays.

In accordance with one aspect of the present invention there is provided a boom spray comprising a generally horizontal boom arm having at least two support arms attached thereto in spaced apart relation, the support arms extending below the height of the boom arm and having respective lower ends, a respective bracket for each support arm attached to the boom arm, each support arm being pivotally connected to its respective bracket, a generally horizontal tubular member supported by the support arms adjacent their lower ends such that the tubular member is arranged to be disposed substantially horizontal adjacent to ground level in use, one or more outlet nozzles mounted to the tubular member, the tubular 15 member being arranged to have a hose member mounted in :fluid communication therewith so as to supply liquid to the tubular member in use.

The present invention will now be described, by way of 0 example, with reference to the accompanying drawings in which:- Figure 1 is a front elevation of a portion of a boom spray :0 in accordance with the present invention; and Figure 2 is a side elevation of the portion of the boomspray shown in Figure i.

In the drawing, there is shown part of a boom arm 10 of a boom spray. The boom arm 10 extends generally horizontally. A pair of brackets 12 are attached to the boom arm 10 in spaced apart relation by any convenient means such as welding. Each bracket 12 is generally of jflN 3

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9t C a rc Vt*9 U-shape and has a pair of generally horizontal transversely extending aligned apertures 14 thereon.

Support arms 16 extend at right angles to the boom arm as seen in the drawings. Each support arm 16 has an upper end 18 and a lower end 22. Adjacent the upper end 18 of each support arm 16 there is a respective transversely extending aperture. Further, each support arm 16 is received in the bracket 12 and a respective locking pin is passed through the apertures 14 in the bracket 12 and the aperture in the support arm 16. As shown, the support arms 16 are preferably arranged so that their lower ends 22 are about the same height above an adjacent ground surface Still further, a tubular member 28 is attached to the support arms 16 adjacent the lower ends 22 thereof so as to extend generally horizontally across the gap between the support arms 16. The tubular member 28 is provided with a plurality of spaced apart downwardly facing outlet spray nozzles 30 which are typically spaced so that the sprays overlap as shown in the drawings to obtain good coverage of the ground.

Also, a hose member 34 has a first end and a second end.

The first end is connected to an end of the tubular member 28 and the second end is arranged to be connected to a supply of liquid.

The arrangement shown in the drawings can be extended by providing more of the support arms 16 and providing further tubular members 28 supported in such manner that the tubular members 28 are in liquid communication and are

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capable of receiving liquid from the hose member 34.

Also, the nozzles 30 are typically sloped to the front (or back) of the boom arm 10 as the boom spray is travelling along in use.

Also, the angle of the nozzles 30 may be varied. The nozzles 30 can be pointed forwardly, downwardly or rearwardly. In use, the brackets 12 are attached to the boom arm 10 such as by welding or bolting. The support arms 16 are engaged with the brackets 12 at a suitable height and secured by means of the pins The angle of the nozzles 30 is also set to give a desired spraying pattern. The boom spray can then be used to spray liquid supplied through the hose member 34 onto the ground.

Lr st The arrangement described enables the nozzle 30 to be

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K 15 disposed close to ground level which reduces problems It encountered previously with boom sprays such as drifting of chemicals so reducing risks to the operator and the environment.

Modifications and variations such as would be apparent to a 20 skilled addressee are deemed within the scope of the It present invention. For example, it is possible to add additional nozzles 30 to the tubular member 28 so that spraying can be carried out forwardly, rearwardly, and downwardly or any combination of these simultaneously.

Also, the nozzles 30 may have tubular members mounted about them. The tubular members may protect the nozzles 30 from damage in use.

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Claims (2)

1. 2. A boom spray according to claim 1, in which the hose member has first and second ends, the first end of the hose member is connected to an end of the tubular member and the i second end of the hose member is arranged to be in fluid communication with a fluid supply.
2. 3. A boom spray according to claims 1 or 2, in which the angle of each nozzle can be varied such that the nozzle can $t I °be pivoted forwardly, downwardly or rearwardly. DATED JULY 19 1991 DENNIS MICHAEL BOYANICH and HEATHER MAY BOYANICH By their Patent Attorneys KELVIN LORD AND COMPANY 'z PERTH, WESTERN AUSTRALIA