Patent US3894498A successfully refreshed from Google Patents.
US3894498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cultivator-spreader combination
Assignee: Individual
•
Filing: 1973-09-13
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Granted: 1975-07-15
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Expires: 1993-09-13
Abstract
Abstract An implement for introducing plant stimulants into the ground includes a container with a conduit and dispenser extending forwardly of the container. A cultiavtor connectable to a prime mover is located in front of the container and to the rear of a horizontal tube of the dispenser. The tube extends across the width of the cultivator and has a slotted opening facing to the rear to deposit material ahead of the cultivator. The opening is more or less exposed by a pivoted flap. The cultivator includes a plurality of tined soil-working members rotatable about upwardly extending axes so that the tines work overlapping strips of land.
Inventors
- 👤 Den Berg Pieter Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:53
CPC Classifications
A; A01; A01C; A01C23/00; A01C23/02; Y; Y10; Y10S; Y10S111/00; Y10S111/925
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
126 words
An implement for introducing plant growing stimulants, such as thick-liquid substances, into the ground comprising a container supported on a wheeled frame movable over the ground, dispensing means in communication with said container and said dispensing means including an outlet means for dispensing material on the ground, a cultivator having a plurality of rotatable soil-working members being interconnected with said frame and said soil-working members being positioned in a row that extends transverse to the direction of travel to work a width of soil, said soil-working members having tines rotatably mounted on upwardly extending axes, said dispensing means extending across substantially the total working width of said cultivator and being located adjacent and in front of said soilworking members relative to the direction of normal travel.
Claim 2
Dependent Claim
126 words
An implement for introducing plant growing stimulants, such as thick-liquid substances, into the ground comprising a container supported on a wheeled frame movable over the ground, dispensing means in communication with said container and said dispensing means including an outlet means for dispensing material on the ground, a cultivator having a plurality of rotatable soil-working members being interconnected with said frame and said soil-working members being positioned in a row that extends transverse to the direction of travel to work a width of soil, said soil-working members having tines rotatably mounted on upwardly extending axes, said dispensing means extending across substantially the total working width of said cultivator and being located adjacent and in front of said soilworking members relative to the direction of normal travel.
Claim 3
Dependent Claim
43 words
An implement as claimed in claim 1, wherein said dispensing means includes a tube through which the material is spread onto the ground, said tube extending substantially parallel to said row of soil-working members throughout substantially the total working width of said cultivator.
Claim 4
Dependent Claim
21 words
An implement as claimed in claim 2, wherein said tube extends transversely and substantially horizontally relative to the direction of travel.
Claim 5
Dependent Claim
30 words
An implement as claimed in claim 2, wherein a conduct is connected to an outlet of said container and said conduct extends over said cultivator to communicate with said tube.
Claim 6
Dependent Claim
22 words
An implement as claimed in claim 2, wherein said tube has at least one slotted opening for spreading material onto the ground.
Claim 7
Dependent Claim
27 words
An implement as claimed in claim 5, wherein said slotted opening is located at the rear side of said tube with respect to the direction of travel.
Claim 8
Dependent Claim
24 words
An implement as claimed in claim 6, wherein said slotted opening extends substantially throughout the whole length of the lower portion of said tube.
Claim 9
Dependent Claim
35 words
An implement as claimed in claim 7, wherein a pivotable and adjustable flap is connected to said tube to more or less expose said opening whereby the outlet size of said opening can be regulated.
Claim 10
Dependent Claim
34 words
An implement as claimed in claim 1, wherein said cultivator has a support for connection to the rear of a prime mover and said frame is releasably coupled to the rear of said cultivator.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-07-14 | 1979-01-13 | 1979-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-14 | 1983-01-13 | 1983-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-14 | 1987-01-13 | 1987-07-15 | $7700.00 | Window Closed / Lapsed |