US3208535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic steering of implements
Assignee: International Motors LLC
•
Filing: 1964-04-09
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Granted: 1965-09-28
•
Expires: 1984-04-09
Abstract
No abstract record available.
Inventors
- 👤 Raymond C Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:08
CPC Classifications
A; A01; A01B; A01B69/00; A01B69/003; A01B69/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
IN ROW CROP CULTIVATORS AND THE LIKE INCLUDING A TRAVELLING SUPPORT HAVING A SOURCE OF ELECTRIC CURRENT AND STEERABLE MEANS FOR GUIDING THE CULTIVATORS IN THE ROW, CULTIVATORS MOUNTED ON SAID SUPPORT FOR LATERAL SHIFTING RELATIVE THERETO, MEANS FOR AUTOMATICALLY OPERATING SAID STEERABLE MEANS TO LATERALLY MOVE THE CULTIVATORS AND AVOID DAMAGE TO THE PLANTS IN THE CROP ROW COMPRISING, A SENSING DEVICE CARRIED BY THE SUPPORT AND MOVABLE WITH SAID CULTIVATORS HAVING A FRAME, A LIGHT SOURCE AND A PHOTO-ELECTRIC CELL MOUNTED ON SAID FRAME AT LONGITUDINALLY SPACED LOCATIONS, SAID LIGHT SOURCE BEING OPERATIVELY CONNECTED TO SAID CURRENT SOURCE TO PROVIDE A BEAM PARALLEL TO THE CROP ROW DIRECTED AT AND ENERGIZING SAID CELL, AND SAID CELL BEING OPERATIVELY CONNECTED TO SAID STEERABLE MEANS TO ACTUATE THE LATTER IN RESPONSE TO INTERRUPTION OF SAID BEAM BY A PLANT TO LATERALY MOVE SAID CULTIVATORS AND AVOID DAMAGE TO THE PLANTS IN THE ROW, SAID SENSING DEVICE FRAME COMPRISING A SHIELD DISPOSEDIN A VERTICAL PLANE SPACED LATERALLY OF THE CROP, ROW AND A PAIR OF LONGITUDINALLY SPACED PROJECTIONS EXTENDING CROPWARDLY FROM SAID
Claim 2
Dependent Claim
181 words
IN ROW CROP CULTIVATORS AND THE LIKE INCLUDING A TRAVELLING SUPPORT HAVING A SOURCE OF ELECTRIC CURRENT AND STEERABLE MEANS FOR GUIDING THE CULTIVATORS IN THE ROW, CULTIVATORS MOUNTED ON SAID SUPPORT FOR LATERAL SHIFTING RELATIVE THERETO, MEANS FOR AUTOMATICALLY OPERATING SAID STEERABLE MEANS TO LATERALLY MOVE THE CULTIVATORS AND AVOID DAMAGE TO THE PLANTS IN THE CROP ROW COMPRISING, A SENSING DEVICE CARRIED BY THE SUPPORT AND MOVABLE WITH SAID CULTIVATORS HAVING A FRAME, A LIGHT SOURCE AND A PHOTO-ELECTRIC CELL MOUNTED ON SAID FRAME AT LONGITUDINALLY SPACED LOCATIONS, SAID LIGHT SOURCE BEING OPERATIVELY CONNECTED TO SAID CURRENT SOURCE TO PROVIDE A BEAM PARALLEL TO THE CROP ROW DIRECTED AT AND ENERGIZING SAID CELL, AND SAID CELL BEING OPERATIVELY CONNECTED TO SAID STEERABLE MEANS TO ACTUATE THE LATTER IN RESPONSE TO INTERRUPTION OF SAID BEAM BY A PLANT TO LATERALY MOVE SAID CULTIVATORS AND AVOID DAMAGE TO THE PLANTS IN THE ROW, SAID SENSING DEVICE FRAME COMPRISING A SHIELD DISPOSEDIN A VERTICAL PLANE SPACED LATERALLY OF THE CROP, ROW AND A PAIR OF LONGITUDINALLY SPACED PROJECTIONS EXTENDING CROPWARDLY FROM SAID
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |