Patent US4256431A successfully refreshed from Google Patents.
US4256431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-driven forage harvester
Assignee: KARL MENGELE and SOHNE MASCHINENFABRIK und EISENGIESSEREI GmbH and CO
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Filing: 1979-04-02
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Granted: 1981-03-17
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Expires: 1999-04-02
Abstract
Abstract A self-driven forage harvester including a main vehicle and a trailer opeively joined therewith wherein the trailer includes an upwardly inclined scraper floor and an axle with a pair of drive wheels located below the forward half of the scraper floor. The main vehicle also includes a drive axle and drive wheels with a drive unit for the forage harvester being mounted thereabove. A pair of steering wheels are located forwardly of the main vehicle drive wheels.
Inventors
- 👤 Werner Strauss
- 👤 Xaver Lenzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:10
CPC Classifications
A; A01; A01D; A01D90/00; A01D90/10; B; B62; B62D; B62D59/00; B62D59/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
137 words
A self-driven forage harvester comprising: a main vehicle; a trailer operatively joined to said main vehicle; a first hydraulic drive axle including a first pair of drive wheels on said main vehicle; steering wheels for said main vehicle located forwardly of said first pair of drive wheels; a hydrostatic driving unit on said main vehicle arranged in the general vicinity of said drive axle; a second hydraulic drive axle on said trailer including a second pair of drive wheels for said trailer; and an upwardly inclined scraper floor formed in said trailer extending continuously from a lower forward end to an upper discharge end thereof; said second hydraulic drive axle of said trailer being located to extend beneath said scraper floor along a portion thereof intermediate said lower forward end and the midpoint of said scraper floor.
Claim 2
Dependent Claim
137 words
A self-driven forage harvester comprising: a main vehicle; a trailer operatively joined to said main vehicle; a first hydraulic drive axle including a first pair of drive wheels on said main vehicle; steering wheels for said main vehicle located forwardly of said first pair of drive wheels; a hydrostatic driving unit on said main vehicle arranged in the general vicinity of said drive axle; a second hydraulic drive axle on said trailer including a second pair of drive wheels for said trailer; and an upwardly inclined scraper floor formed in said trailer extending continuously from a lower forward end to an upper discharge end thereof; said second hydraulic drive axle of said trailer being located to extend beneath said scraper floor along a portion thereof intermediate said lower forward end and the midpoint of said scraper floor.
Claim 3
Dependent Claim
39 words
A forage harvester according to claim 1 wherein said trailer includes an inclined front end wall extending upwardly and forwardly from said lower forward end of said scraper floor, said front end wall extending to overhang said main vehicle.
Claim 4
Dependent Claim
29 words
A forage harvester according to claim 1 further including a tiltable transverse conveyer provided on said trailer in operative relationship with said upper discharge end of said scraper floor.
Claim 5
Dependent Claim
22 words
A forage harvester according to claim 1 wherein said hydrostatic driving unit is located and supported directly above said first drive axle.
References Cited (Backward Citations)
GB836946A
Cited
GB1021672A
Cited
DE1530735A1
Cited
US3317064A
Cited
GB1180585A
Cited
GB1231180A
Cited
US3705638A
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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) | 1984-03-16 | 1984-09-15 | 1985-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-16 | 1988-09-15 | 1989-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-16 | 1992-09-15 | 1993-03-17 | $7700.00 | Window Closed / Lapsed |