Patent US3774380A successfully refreshed from Google Patents.
US3774380A
Expired / Lapsed
US
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Reaping and mowing machine
Assignee: FFSA SOC
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Filing: 1972-03-29
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Granted: 1973-11-27
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Expires: 1992-03-29
Abstract
Abstract A reaping and mowing machine having at least two drums, carrying cutting blades, mounted on a horizontal beam for rotation about vertical axes. The drums are rotated by individual hydraulic motors supplied with hydraulic fluid by a single pump via a distributor connected to the fluid inlets of the motors, and the fluid outlets of the motors are connected to a return conduit to a hydraulic fluid reservoir.
Inventors
- 👤 M Ancellin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:31
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/63; A01D34/76; A01D34/80
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
A reaping or mowing machine comprising a plurality of rotatable cutting drums, each of said drums being mounted about a vertical axis and provided with a plurality of cutting blades projecting from the lower portion thereof; a plurality of hydraulic motors, each of said motors adapted to drive a corresponding one of said cutting drums; pump means for supplying hydraulic fluid under pressure and characterized by: a fluid delivery divider having a common inlet connected to said pump means and a plurality of sections, each of said sections including freely rotating gear means mounted therein and having an independent fluid outlet port connected to an induction port of a corresponding one of said hydraulic motors; and shaft means for coupling said gear means of said sections.
Claim 2
Dependent Claim
126 words
A reaping or mowing machine comprising a plurality of rotatable cutting drums, each of said drums being mounted about a vertical axis and provided with a plurality of cutting blades projecting from the lower portion thereof; a plurality of hydraulic motors, each of said motors adapted to drive a corresponding one of said cutting drums; pump means for supplying hydraulic fluid under pressure and characterized by: a fluid delivery divider having a common inlet connected to said pump means and a plurality of sections, each of said sections including freely rotating gear means mounted therein and having an independent fluid outlet port connected to an induction port of a corresponding one of said hydraulic motors; and shaft means for coupling said gear means of said sections.
Claim 3
Dependent Claim
59 words
A reaping or mowing machine as defined in claim 1 wherein said gear means mounted in each section of said fluid delivery divider comprises a gear pair wherein a first gear member of one of said gear pairs is coupled by said shaft means to a corresponding first gear member in an adjacent section of said fluid delivery divider.
Claim 4
Dependent Claim
23 words
Reaping or mowing machine, according to claim 1, characterised in that the various sections of the delivery divider have the same cubic capacity.
Claim 5
Dependent Claim
32 words
Reaping or mowing machine, according to claim 1, characterised in that the single element hydraulic pump forms a part of the reaping or mowing machine and is actuated by a power take-off.
Claim 6
Dependent Claim
29 words
Reaping or mowing machine according to claim 1, characterised in that the single-element hydraulic pump forms a part of the driving cell and is driven directly by the latter.
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) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |