Patent US3763797A successfully refreshed from Google Patents.
US3763797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Row seeder
Assignee: United States Department of Agriculture
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Filing: 1971-07-14
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Granted: 1973-10-09
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Expires: 1991-07-14
Abstract
Abstract A planter for planting rows of seeds, particularly pregerminated seeds such as rice, comprises a hopper from which seed is fed to a horizontal, longitudinally fluted feed roll which is rotated through a sprocket chain by a ground wheel and the device. Seeds drop from the fluted roll into a distributor from which, in turn, they pass to a plurality of individual seed tubes arrayed transversely to the direction of motion of the device. Gentle curves prevent damage to the delicate seeds which are deposited in furrows produced by openers under the seed tubes.
Inventors
- 👤 N Navasero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:07
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A seeder with a two-step metering device comprising a housing, a hopper in said housing having an outlet means, a longitudinally fluted roller, rotatably mounted within said outlet guide means, a drive wheel on said device with means connected said roller to operate said roller, said roller rotatable to enable the flutes therein, to receive seeds from said hopper, a brush cut-off means mounted adjacent said outlet guide means and engageable with said roller to wipe off seeds which are not in the groove of the roller, a seed distributor mounted adjacent and below the fluted roller to receive seeds said distributor comprising a plurality of guide channel means, seed tubes mounted on said device and arranged to follow predetermined furrows, each of said guide channel means arranged to direct seed dispensed from said roller flutes into a respective seed tube, a skid mounted on said device and extending transversely ahead of said seed tubes, and furrow openers attached to the undersurface of said skid and in close proximity and is front of the outer ends of said seed tubes.
Claim 2
Dependent Claim
180 words
A seeder with a two-step metering device comprising a housing, a hopper in said housing having an outlet means, a longitudinally fluted roller, rotatably mounted within said outlet guide means, a drive wheel on said device with means connected said roller to operate said roller, said roller rotatable to enable the flutes therein, to receive seeds from said hopper, a brush cut-off means mounted adjacent said outlet guide means and engageable with said roller to wipe off seeds which are not in the groove of the roller, a seed distributor mounted adjacent and below the fluted roller to receive seeds said distributor comprising a plurality of guide channel means, seed tubes mounted on said device and arranged to follow predetermined furrows, each of said guide channel means arranged to direct seed dispensed from said roller flutes into a respective seed tube, a skid mounted on said device and extending transversely ahead of said seed tubes, and furrow openers attached to the undersurface of said skid and in close proximity and is front of the outer ends of said seed tubes.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-08 | 1977-04-09 | 1977-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-08 | 1981-04-09 | 1981-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-08 | 1985-04-09 | 1985-10-09 | $7700.00 | Window Closed / Lapsed |