Plant husbandry – Plant surface contact material applicator
Patent
1986-08-18
1988-03-29
Hafer, Robert A.
Plant husbandry
Plant surface contact material applicator
47 17, A01G 1300
Patent
active
047334975
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
(1) Field of the Invention
This invention relates to an applicator for agricultural and horticultural treating liquids.
(2) Prior Art
Great care is required in the spraying of various agricultural and horticultural compounds, which though highly effective in the functions they are required to perform, such as controlling or eradicating weed growth, are also, in many cases, toxic. In addition to the health hazards such substances present to users, there is also the danger that they may be accidentally sprayed, or blown by wind, onto crops which may be harmed as a result.
SUMMARY OF THE PRESENT INVENTION
The present invention has been devised with the general object of providing apparatus for applying such treating liquids efficiently, with reduced danger of the substances becoming air-borne and inhaled by a user or of being misdirected onto crops.
With the foregoing and other objects in view the invention resides broadly in an applicator for agricultural and horticultural treating liquids including a supply conduit; feed means for feeding the treating liquid to the supply conduit and thence to the swabbing brush; and means for propelling the supply conduit over an area to be treated so that the swabbing brush trails fromt the supply conduit and deposits liquid from the brush to the area. The swabbing brush preferably comprises a multiplicity of pliant filaments trailing from a transverse opening in the lower part of the supply conduit. The supply conduit may be a tube with one end connected by a universal joint to one side of a tractor-mounted base frame, the conduit normally extending laterally but capable of being deflected, against spring-loading, to the front or rear, and capable of being raised from a normal substantially horizontal position to a raised travelling position. The feed means may include a tank for the liquid carried by the base frame and connected, through a control valve, to a feed pipe within the supply conduit, nozzles leading from the feed pipe being directed onto the upper part of the swabbing brush within the supply conduit. Other features of the invention will become apparent from the following description.
BRIEF DESCRIPTION OF THE DRAWINGS
In order that preferred embodiments of the invention may be readily understood and carried into practical effect, reference is now made to the accompanying drawings, wherein:
FIG. 1 is a rear elevational view of a tractor-mounted applicator according to the invention, usable particularly for controlling weed growth in orchards,
FIG. 2 is a plan view of the apparatus shown in FIG. 1,
FIG. 3 is a sectional detail drawing, to larger scale, of a part of the apparatus,
FIG. 4 is a sectional view along line 4--4 in FIG. 3,
FIG. 5 is a large-scale cross-sectional view of a filament of the apparatus,
FIG. 6 is a partly broken-away perspective view of an alternative embodiment of the invention usable for the manual application of treating liquid to lawns or the like, and
FIG. 7 is a partly broken-away perspective view of a further embodiment of the invention, usable for small-scale application of weedicides or other treating liquids.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring initially to FIGS. 1 to 5 inclusive of the drawings, the applicator illustrated includes a rectangular base frame 10 on which is mounted an upright front frame 11 carrying apertured lugs 12 for the attachment of the apparatus to the three-point linkage system (not shown) at the rear of a tractor part of which is indicated in broken outline at 13. A tank 14 for liquid weedicide is mounted in a cradle 15 on the base frame 10, the outlet from the tank being connected through a control valve 16 to a feed hose 17.
A supply tube 18 is connected hingedly to one side of the base frame 10, and normally extends laterally from it, as shown. The supply tube 18 may suitably consist of a length of round-section pipe with a narrow longitudinal division 19 in its normally lowermost part, and, within its upper part, an integrally formed longitud
REFERENCES:
patent: 1764952 (1930-06-01), Hay
patent: 3535822 (1970-10-01), Fruth et al.
patent: 4291492 (1981-09-01), Reynolds et al.
patent: 4403881 (1983-09-01), Keeton
patent: 4443970 (1984-04-01), Randolph
patent: 4471570 (1984-09-01), Chandler
patent: 4592164 (1986-06-01), Ballu
Hafer Robert A.
Lewis Bradley M.
LandOfFree
Applicator for agricultural and horticultural treating liquids does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Applicator for agricultural and horticultural treating liquids, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Applicator for agricultural and horticultural treating liquids will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1082670