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CA1129256A Expired / Lapsed CA ⏱️ 0.0 years remaining

Agricultural apparatus and agricultural methods

Assignee: STELLENBOSCH FARMERS' SERVICES Pty Ltd
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Filing: 1980-03-06
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Granted: 1982-08-10
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Expires: 2000-03-06
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Abstract

Abstract ABSTRACT Apparatus for distributing a chemical substance in agricultural land at below surface level, say, l metre below. The apparatus includes a hopper (10,114) for the substance, a blower (16,146) for feeding material from the outlet of the hopper into a down-pipe (48,1441, and an agitator (88,132) for preventing packing in the hopper. A shank (26) has an earthworking implement (30) at the lower end thereof for lifting the ground and breaking-up subsoil clods but not turning the soil over. The implement has an aperture (40) in it rearwardly of the shank (26), and the downpipe leads to this aperture so that said substance is discharged under pressure below said implement, the pipe lying rearwardly of the shank. Under the hole there is a plate (42) on which down-flowing substance impinges and which scatters it laterally. The substance can flow from the hopper into the blower and then out of the blower outlet into the downpipe. Alternatively, the substance can flow into the upper part: of the downpipe and air can be blown into the downpipe so as to suck the chemical substance from the upper part of the downpipe into the lower part, and then discharge it under pressure below the implement.

Inventors

  • 👤 Gustav H. Raubenheimer

Bibliographic Details

Application Number —
Jurisdiction CA
Data Source google_patents
Last Synchronized 2026-11-04 01:50
CPC Classifications
A; A01; A01C; A01C21/00; A01C21/002; A01C15/00; A01M; A01M17/00

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 154 words
Agricultural apparatus which includes a shank having means for mounting it on a tractive vehicle and having an earthworking implement at the lower end thereof, there being a pipe extending downwardly adjacent the rear of the shank, the earthworking implement comprising a wing mouldboard on each side of the shank, the wing mouldboards sloping upwardly in the rearward direction and the implement defining a cavity which is rearwardly and downwardly open, the forward and upper bounding walls of the cavity being constituted by said implement, and said pipe having its lower end opening into the cavity through the upper bounding wall of the cavity and its upper end connected to means for forcing a chemical substance down the pipe and into said cavity, there being soil breakers at the rear of the implement, the soil breakers extending rearwardly from the trailing edge of the remainder of the implement and protruding above said trailing edge.
Claim 2
Dependent Claim 154 words
Agricultural apparatus which includes a shank having means for mounting it on a tractive vehicle and having an earthworking implement at the lower end thereof, there being a pipe extending downwardly adjacent the rear of the shank, the earthworking implement comprising a wing mouldboard on each side of the shank, the wing mouldboards sloping upwardly in the rearward direction and the implement defining a cavity which is rearwardly and downwardly open, the forward and upper bounding walls of the cavity being constituted by said implement, and said pipe having its lower end opening into the cavity through the upper bounding wall of the cavity and its upper end connected to means for forcing a chemical substance down the pipe and into said cavity, there being soil breakers at the rear of the implement, the soil breakers extending rearwardly from the trailing edge of the remainder of the implement and protruding above said trailing edge.
Claim 3
Dependent Claim 54 words
Agricultural apparatus according to Claim 1, in which there is a generally triangular plate joining said mouldboards behind the shank, there being an aperture in said plate, said pipe leading down to said aperture and there being below said aperture a distributor plate which material flowing down said pipe strikes and is distributed laterally.
Claim 4
Dependent Claim 43 words
Agricultural apparatus according to Claim 2, in which said distributor plate includes an element in the form of an upwardly convergent vee, the apex of which lies below said aperture and which apex extends in the intended direction of motion of the apparatus.
Claim 5
Dependent Claim 39 words
Agricultural apparatus according to Claim 1, and comprising a hopper for the chemical substance, the outlet from the hopper communicating with the interior of the housing of a blower and the outlet of the blower communicating with said pipe.
Claim 6
Dependent Claim 70 words
Agricultural apparatus according to Claim 1 and comprising a hopper for the chemical substance which hopper is arranged so that the chemical substance flows under gravity into the upper end of said pipe, there being a blower for forcing air into said pipe at an intermediate point thereof in such manner that it draws downwardly the substance which is in the part of the pipe above the air entry point.
Claim 7
Dependent Claim 26 words
Agricultural apparatus according to Claim 4 in which an agitator is provided at the outlet of the hopper for preventing packing and bridging of said substance.
Claim 8
Dependent Claim 34 words
Agricultural apparatus according to Claim 4 or 5, in which an agitator is provided at the outlet of the hopper for preventing packing and bridging of said agitator is driven by a fluid motor.
Claim 9
Dependent Claim 18 words
Agricultural apparatus according to Claim 4 or 5, in which said blower is driven by a fluid motor.
Claim 10
Dependent Claim 29 words
Agricultural apparatus according to Claim 4 or 5, and comprising mechanically operable means for enabling the rate of flow of chemical substance through the hopper outlet to be varied.
Claim 11
Dependent Claim 24 words
Agricultural apparatus according to claim 1 or 2, in which there is a ripper tip extending forwardly from the lower end of the shank.
Claim 12
Dependent Claim 45 words
Agricultural apparatus according to Claim l, in which said means is a pump, there being a tank for receiving a liquid and the suction inlet of the pump being connected to said tank, said pipe communicating with a spray bar which is in said zone.

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