Patent US4232383A successfully refreshed from Google Patents.
Patent US3590925A successfully refreshed from Google Patents.
US3590925A
Expired / Lapsed
US
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Automated agricultural system
Assignee: TARA CORP
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Filing: 1968-05-06
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Granted: 1971-07-06
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Expires: 1988-05-06
Abstract
Abstract The present invention relates to an automated agricultural system for variously servicing the plants of a row crop and particularly to such a system for scanning rows of the crop to accomplish such services as thinning, weeding, blocking, fertilizing, and so on. The system selectively identifies row plants that are to be preserved, a system for processing radiation that is reflected from such plants. The system, as disclosed, also includes specific structure for thinning row plants, spaced apart by a preselected distance.
Inventors
- 👤 Arthur L Troutner
- 👤 Don Lebell
- 👤 William A Koelsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:49
CPC Classifications
A; A01; A01B; A01B41/00; A01B41/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
223 words
An agricultural apparatus for thinning plants in row crops, comprising: a mobile frame means for moving along said row crops to travel over individual plants; destruction means affixed to said mobile frame means, for destroying plants in a row traveled by said mobile frame means; distance-indicating means affixed to said mobile frame and setable to provide a command signal upon the occurrence of said mobile frame travelling a predetermined distance along said row; plant-sensing meaNs affixed to said mobile frame to sense plants in said row to providing plant signals as said plants are encountered by said mobile frame; inhibit means affixed to said mobile frame for inhibiting the destructive operation of said destruction means for a short interval of said row; means affixed to said mobile frame and connected to receive said plant signals and said command signals for controlling said inhibit means to leave a plant undestroyed on the concurrence of said plant signals and said command signal; space-indicating means affixed to said mobile frame for metering the distance between plants in said row traveled by said mobile frame and left undestroyed by said destruction means; and means controlled by said space indicating means for varying said predetermined distance of said distance-indicating means inversely as said distance metered between plants in a row traveled by said mobile frame and left undestroyed.
Claim 2
Dependent Claim
223 words
An agricultural apparatus for thinning plants in row crops, comprising: a mobile frame means for moving along said row crops to travel over individual plants; destruction means affixed to said mobile frame means, for destroying plants in a row traveled by said mobile frame means; distance-indicating means affixed to said mobile frame and setable to provide a command signal upon the occurrence of said mobile frame travelling a predetermined distance along said row; plant-sensing meaNs affixed to said mobile frame to sense plants in said row to providing plant signals as said plants are encountered by said mobile frame; inhibit means affixed to said mobile frame for inhibiting the destructive operation of said destruction means for a short interval of said row; means affixed to said mobile frame and connected to receive said plant signals and said command signals for controlling said inhibit means to leave a plant undestroyed on the concurrence of said plant signals and said command signal; space-indicating means affixed to said mobile frame for metering the distance between plants in said row traveled by said mobile frame and left undestroyed by said destruction means; and means controlled by said space indicating means for varying said predetermined distance of said distance-indicating means inversely as said distance metered between plants in a row traveled by said mobile frame and left undestroyed.
Claim 3
Dependent Claim
54 words
An apparatus according to claim 1 wherein said plant-sensing means includes: means for illuminating said plants; means for sensing light reflected from said plants to provide two signals representative of reflected light of different band widths; and means for combining said two signals to provide said plant signals indicative of the presence of plants.
Claim 4
Dependent Claim
47 words
An apparatus according to claim 1 wherein said destruction means comprises a rotary cutting apparatus affixed to said frame means to revolve about an axis that is substantially parallel to said row crops; and wherein said inhibit means comprises means for forwardly shifting said cutting apparatus axially.
References Cited (Backward Citations)
US2438224A
Cited
US2400562A
Cited
US2660915A
Cited
US2894178A
Cited
US3027950A
Cited
US3134840A
Cited
US3206022A
Cited
US3331955A
Cited
US3344349A
Cited
US3411625A
Cited
US3305089A
Cited
US3373870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-05 | 1975-01-04 | 1975-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-05 | 1979-01-04 | 1979-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-05 | 1983-01-04 | 1983-07-06 | $7700.00 | Window Closed / Lapsed |