Patent US3572547A successfully refreshed from Google Patents.
US3572547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plateless planter
Assignee: Deutz Allis Corp
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Filing: 1969-07-22
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Granted: 1971-03-30
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Expires: 1989-07-22
Abstract
Abstract A plateless planter wherein rotating fingers pick up seeds, move them in a groove in the periphery of a drum surrounding the fingers to a point where the groove is interrupted with depressions so that excess seed can drop out and return to the seed supply while the singulated seed is moved along the groove by the finger to a point of discharge.
Inventors
- 👤 Maynard E Walberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:15
CPC Classifications
A; A01; A01C; A01C7/00; A01C7/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
148 words
A seed planter comprising: a circular band having a seed discharge opening on the periphery thereof and having front and back members attached to said band for closing same, and having a seed-receiving opening at a lower portion of one of said members, a rotatable shaft journaled in said back member, at least one spring finger connected to said shaft for rotation therewith, said band having an outwardly extending groove about the periphery thereof, said finger being provided with an indented midportion fitting into said groove for guiding said finger during rotation thereof, said groove being of a depth substantially equal to the minimum dimension of a seed, said finger selecting a seed in said groove at the lower end of said band and then moving said seed along said groove by contact with said indentation and the distal end of said finger to said point of discharge.
Claim 2
Dependent Claim
148 words
A seed planter comprising: a circular band having a seed discharge opening on the periphery thereof and having front and back members attached to said band for closing same, and having a seed-receiving opening at a lower portion of one of said members, a rotatable shaft journaled in said back member, at least one spring finger connected to said shaft for rotation therewith, said band having an outwardly extending groove about the periphery thereof, said finger being provided with an indented midportion fitting into said groove for guiding said finger during rotation thereof, said groove being of a depth substantially equal to the minimum dimension of a seed, said finger selecting a seed in said groove at the lower end of said band and then moving said seed along said groove by contact with said indentation and the distal end of said finger to said point of discharge.
Claim 3
Dependent Claim
26 words
The combination recited in claim 1 and wherein said indentation is provided with the same radial dimensions as said groove to provide a complimentary fit therebetween.
Claim 4
Dependent Claim
93 words
The combination recited in claim 1 and wherein said shaft is journaled in said back member eccentric to said band so that the upper portion of said shaft is spaced a greater distance away from the top of the band than the lower portion of said shaft is spaced from the bottom of said band so that bias of said spring finger is downwardly against the bottom of the band during the seed pickup portion of its cycle and is greater than the bias of said spring finger when at its highest position.
Claim 5
Dependent Claim
37 words
The combination recited in claim 3 and wherein said groove is deepened in an upper portion thereof to provide an escape route for seeds in excess of one which may have been picked up by said finger.
Claim 6
Dependent Claim
53 words
The combination recited in claim 3 and wherein the portion of said finger extending from said indentation to the distal end of said finger extends substantially parallel to the inside of said band when said finger is in its highest position and has a width substantially equal to the width of said groove.
Claim 7
Dependent Claim
28 words
The combination recited in claim 5 and wherein said shaft is rotated in a direction so that the distal end of said finger is the leading portion thereof.
Claim 8
Dependent Claim
49 words
The combination recited in claim 3 and wherein the portion of said finger extending from said indentation to the distal end of said finger is at an aggressive angle to the inside band surface of said housing when said finger is in its seed pickup portion of its cycle.
Claim 9
Dependent Claim
16 words
The combination in claim 7 and wherein the distal portion of said finger is spring steel.
Claim 10
Dependent Claim
34 words
The combination recited in claim 2 wherein said groove is semicircular in cross section and wherein said indentation in said finger is hemispherical dimensioned to be recieved in said groove in complementary relation thereto.
Claim 11
Dependent Claim
24 words
The combination recited in claim 6 and whereIn a disc member attached to said shaft forms a support for a spring steel finger portion.
References Cited (Backward Citations)
US1371343A
Cited
US1908085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-29 | 1974-09-28 | 1975-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-29 | 1978-09-28 | 1979-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-29 | 1982-09-28 | 1983-03-30 | $7700.00 | Window Closed / Lapsed |