Fluid sprinkling – spraying – and diffusing – With mobile tank-type supply means – Spray boom or bar type distributor
Patent
1981-12-01
1984-05-08
Love, John J.
Fluid sprinkling, spraying, and diffusing
With mobile tank-type supply means
Spray boom or bar type distributor
B05B 120
Patent
active
044470070
DESCRIPTION:
BRIEF SUMMARY
CROSS REFERENCE TO RELATED APPLICATION
This application is a national phase application corresponding to PCT/FR81/00046 filed Apr. 1, 1981 and based upon French application No. 80 07894 filed Apr. 4, 1980 under the International Convention.
FIELD OF THE INVENTION
This invention relates to devices for the application of atomized liquid products for the treatment of plants, such as insecticides, fungicides or any other treatment such as antipollution treatments.
BACKGROUND OF THE INVENTION
Known treatment devices which can apply atomized liquid products are generally devices which are specially designed for the particular treatments under consideration. Among other things, the quality of atomization which they can produce depends on the nature of the product to be spread. Thus, for fungicidal products, the atomization required must be fine so that the products may penetrate deeply to the inside of the plants to be treated, which requires a high pressure on the atomized liquid and a high air velocity in order to further dissociate the droplets thus formed. On the other hand, for the spreading of herbicides or even of liquid fertilizers, the atomization must be coarse so that the products will not be carried beyond the zone to be treated.
Similarly, the specialization of these devices adapted to specific treatments has resulted in the imparting to each of those of a structure specially adapted to the nature of the plants to be treated. Thus, the known devices designed, for example, for fungicidal treatments are generally devices which can circulate within the rows of the plants to be treated, the spraying devices thereof being located at the most convenient height as a function of the height of said plants, trees or shrubs.
On the other hand, known devices for herbicidal treatments comprise spraying devices which are placed near the ground and which generally have a long ramp located perpendicularly with respect to the direction of forward motion of the device.
Such devices, because of the nature of the spray which they produce, and because of the nature of the spreading members which they comprise and their fixed location with respect to the ground, are not adaptable to the various treatment conditions and they are particularly not suited for treatments of high forests or of hedges and even less of channels.
OBJECT OF THE INVENTION
The object of this invention is to overcome this drawback.
SUMMARY OF THE INVENTION
The treatment device of the invention is designed so that it can spray at various pressures, so that the atomization characteristics may be adapted to the nature of the product which is spread. For this purpose, a blowing device for air, the velocity of which may vary and even be nil, is associated means for the mechanical atomization of the liquid so as to provide, if necessary, a perfect localization of the treatment, this result being obtained through the use of working members which are provided with velocity or flow rate varying devices. Indeed, the blower is driven by a variable speed hydraulic motor and the liquid spraying circuit comprises a discharge device of the known "by-pass" type, which, as a result of the simultaneous reciprocal interplay of its adjustment possibilities, provides a perfect adaptation of operating conditions.
But, above all, the treatment member is made movable in the three planes of space so that it can be oriented in all directions and it is mounted on a movable device comprising a swivelling telescopic lifting arm which makes it possible to bring the treatment unit as near as necessary to the plant surface to be treated whatever its level may be with respect to the ground and even if the treatment to be carried out is below the ground surface.
For this purpose, the treatment member, which comprises the liquid spraying device and the air blower are supported by a platform located at the extremity of long articulated movable arms driven by hydraulic jacks, said platform being itself movable with respect to the arm supporting it along the three orthogonal
REFERENCES:
patent: 2608792 (1952-09-01), Chater et al.
patent: 2613109 (1952-10-01), Walker
patent: 3346052 (1967-10-01), Moore et al.
patent: 3599722 (1971-08-01), Davidson et al.
patent: 3883073 (1975-05-01), Ballu
patent: 4170264 (1979-10-01), Gibson
Dubno Herbert
Love John J.
McCarthy Mary
Ross Karl F.
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