US3638829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Finger-type planter
Assignee: Case LLC
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Filing: 1970-05-14
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Granted: 1972-02-01
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Expires: 1990-05-14
Abstract
Abstract Seed metering apparatus for planters which includes a housing having a seed supply and a seed selecting disk rotatable in the housing with its lower peripheral portion disposed in the seed supply, the disk having spring fingers mounted thereon with seed clasping portions yieldable to an open or seed receiving position and axially biased to a closed or seed clasping position, actuating means being provided in the housing and successively engageable with the fingers to open and close the seed clasping portions thereof.
Inventors
- 👤 Roland J Frase
- 👤 Gordon R O'neil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:26
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
209 words
In a planter, a housing adapted to receive seed and form a supply of such seed in the lower portion of the housing, seedmetering means rotatably mounted in the housing including a disk having its lower peripheral portion rotatable in said seed supply, guide means in the housing spaced from said lower peripheral portion of the disk to form a restricted channel for the reception of single seeds, a seed pickup member mounted on the disk including a plurality of radially disposed spring fingers each having a seed-clasping portion biased toward the seed-engaging face of the disk and rotatable therewith in said channel, an actuating means in the housing, said fingers successively engaged by said actuating means during rotation of said disk to deflect said seed-clasping portion away from the disk to an open position to receive and upon release to clasp a seed therebetween in the adjacent face of the disk, a driven shaft mounted in said housing, a hub having a flange secured to said driven shaft and said disk mounted on said hub and removably secured to said flange, spacer means being provided for insertion between the flange and the disk to adjust the latter axially to selected positions to thus accommodate seed of different size.
Claim 2
Dependent Claim
209 words
In a planter, a housing adapted to receive seed and form a supply of such seed in the lower portion of the housing, seedmetering means rotatably mounted in the housing including a disk having its lower peripheral portion rotatable in said seed supply, guide means in the housing spaced from said lower peripheral portion of the disk to form a restricted channel for the reception of single seeds, a seed pickup member mounted on the disk including a plurality of radially disposed spring fingers each having a seed-clasping portion biased toward the seed-engaging face of the disk and rotatable therewith in said channel, an actuating means in the housing, said fingers successively engaged by said actuating means during rotation of said disk to deflect said seed-clasping portion away from the disk to an open position to receive and upon release to clasp a seed therebetween in the adjacent face of the disk, a driven shaft mounted in said housing, a hub having a flange secured to said driven shaft and said disk mounted on said hub and removably secured to said flange, spacer means being provided for insertion between the flange and the disk to adjust the latter axially to selected positions to thus accommodate seed of different size.
Claim 3
Dependent Claim
63 words
The invention as set forth in claim 1, wherein said seed pickup member comprises a plurality of relatively thin spring steel segments circumferentiAlly arranged on the face of said disk opposite to said seed-engaging face, each of said segments having a radially inner portion removably secured to the inner portion of the disk and formed integrally therewith a plurality of radially extending fingers.
Claim 4
Dependent Claim
96 words
The invention set forth in claim 2, wherein said segments are mounted on the face of said disk opposite said channel and said fingers are biased away from the disk, the outer end of each of said fingers having an axially bent seed-clasping portion, said disk having slots therein and said axially bent portions being slidably receivable in said slots and extending into said channel, each of said seed-clasping portions having its end bent parallel to the seed-engaging face of the disk to receive and hold a seed therebetween and the adjacent face of the disk.
Claim 5
Dependent Claim
83 words
The invention set forth in claim 3, wherein said spring fingers are axially biased in one direction to a closed position to clasp a seed between said seed-clasping portion and the seed-engaging face of the disk and are axially yieldable in the other direction to the open seed-receiving position and said actuating means comprises a cam mounted in the housing adjacent said opposite face of said disk and successively engageable with said fingers to open and close the seed-clasping portions of said fingers.
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) | 1975-01-31 | 1975-08-02 | 1976-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-31 | 1979-08-02 | 1980-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-31 | 1983-08-02 | 1984-02-01 | $7700.00 | Window Closed / Lapsed |