US4223478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agricultural chemical applicator
Assignee: Individual
•
Filing: 1979-05-04
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Granted: 1980-09-23
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Expires: 1999-05-04
Abstract
Abstract The agricultural chemical applicator of the present invention comprises a roller frame assembly having folding wing sections at opposite ends thereof. Rollers are mounted on each of the frames and include a liquid absorbing material which receives an agricultural chemical from a dispensing conduit located above the roller. A wiper engages the roller to prevent excess liquid from dripping off of the roller. The rollers are connected for driving engagement by interlocking lugs at the ends of the rollers adjacent the hinged joints of the roller wings.
Inventors
- 👤 Dennis P. McHugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:10
CPC Classifications
A; A01; A01M; A01M21/00; A01M21/04; A01M21/043
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
246 words
An agricultural chemical applicator comprising: a roller frame assembly having at least first and second elongated frame sections; each of said frame sections having an elongated roller rotatably journaled therein for rotational movement about a rotational axis, said roller having an outer cylindrical surface covered with a liquid absorbing material; hinge means interconnecting said first and second roller frame sections for articulated swinging movement from a straight position wherein said rotational axes of said rollers of said first and second frame sections are in approximate registered alignment to a folded position wherein said rotational axes are articulated with respect to one another; each of said rollers having lug means connected thereto and positioned adjacent said hinge means; said lug means of said roller of said first frame section being positioned to engage said lug means of said roller of said second frame section when said frame sections are in said straight position whereby rotational movement of one of said rollers will be transmitted to the other of said rollers; power means connected to said one roller for rotating said one roller; chemical dispensing means mounted to said frame sections above said rollers and being connected to a source of liquid chemicals for dispensing said liquid chemicals onto said liquid absorbing material on said rollers; wiper means mounted on said frame sections and functionally engaging said liquid absorbing material of said rollers for wiping excess liquid chemical therefrom to prevent said chemical from dripping off said rollers.
Claim 2
Dependent Claim
246 words
An agricultural chemical applicator comprising: a roller frame assembly having at least first and second elongated frame sections; each of said frame sections having an elongated roller rotatably journaled therein for rotational movement about a rotational axis, said roller having an outer cylindrical surface covered with a liquid absorbing material; hinge means interconnecting said first and second roller frame sections for articulated swinging movement from a straight position wherein said rotational axes of said rollers of said first and second frame sections are in approximate registered alignment to a folded position wherein said rotational axes are articulated with respect to one another; each of said rollers having lug means connected thereto and positioned adjacent said hinge means; said lug means of said roller of said first frame section being positioned to engage said lug means of said roller of said second frame section when said frame sections are in said straight position whereby rotational movement of one of said rollers will be transmitted to the other of said rollers; power means connected to said one roller for rotating said one roller; chemical dispensing means mounted to said frame sections above said rollers and being connected to a source of liquid chemicals for dispensing said liquid chemicals onto said liquid absorbing material on said rollers; wiper means mounted on said frame sections and functionally engaging said liquid absorbing material of said rollers for wiping excess liquid chemical therefrom to prevent said chemical from dripping off said rollers.
Claim 3
Dependent Claim
74 words
An applicator according to claim 1 wherein at least one wheel support leg is operatively connected to said frame assembly and extends downwardly therefrom, a ground engaging wheel being rotatably mounted on the lower end of said leg, adjusting means connecting said leg to said frame assembly for permitting selective adjustable securement of said leg to said frame assembly for causing adjustment of the distance of said ground engaging wheel below said frame assembly.
Claim 4
Dependent Claim
45 words
An applicator according to claim 2 wherein said adjustment means comprises a yoke having spaced apart side members embracing said leg therebetween, bolt means interconnecting said side members for permitting selective tightening and loosening of the frictional engagement of said side members against said leg.
Claim 5
Dependent Claim
30 words
An applicator according to claim 1 wherein each of said rollers include shafts extending axially therefrom adjacent said lug means, said lugs being mounted in fixed relation to said shafts.
Claim 6
Dependent Claim
48 words
An applicator according to claim 4 wherein a circular head is mounted on each of said shafts and includes a circular flat surface facing axially away from said roller, said leg protruding axially from said flat surface and being spaced radially from said rotational axis of said roller.
Claim 7
Dependent Claim
38 words
An applicator according to claim 5 wherein said circular flat surfaces of said heads on said rollers of said first and second frame sections are in facing registered alignment when said frame sections are in said straight position.
Claim 8
Dependent Claim
34 words
An applicator according to claim 1 wherein said dispensing means comprises an elongated conduit having a plurality of openings spaced along the length thereof for permitting said fluid chemical to drip onto said rollers.
Claim 9
Dependent Claim
28 words
An applicator according to claim 1 wherein said wiper means comprises a flexible squeegee frictionally engaging said liquid absorbing material along the length of each of said rollers.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-23 | 1984-03-24 | 1984-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-23 | 1988-03-24 | 1988-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-23 | 1992-03-24 | 1992-09-23 | $7700.00 | Window Closed / Lapsed |