US3704575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flail-type irrigation ditch cleaner
Assignee: Individual
•
Filing: 1971-01-26
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Granted: 1972-12-05
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Expires: 1991-01-26
Abstract
Abstract An elongated frame for horizontal positioning transversely of and above a ditch to be cleaned and movement along the ditch. An elongated support member is disposed lengthwise of and journalled from a lower portion of the frame and an elongated flexible flail member is provided with the opposite ends of the flexible flail member and the rotatable support member including coacting structure for removably anchoring the opposite ends of the flail member to selected longitudinally spaced portions of the elongated support member, whereby a flail of generally U-shaped configuration may be swung rapidly about the axis of rotation of the elongated support member from which the flail is supported.
Inventors
- 👤 Martin L Daniel
- 👤 George E Sacks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:33
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/43; A01D34/435; A01D44/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
81 words
A flail-type ditch cleaner including a frame having horizontally spaced portions for positioning above the opposite sides of a ditch to be cleaned and movement along the ditch, an elongated rigid rotary support member rotatable about its longitudinal axis and extending between and journalled from said spaced portions of said frame, and an elongated flexible flail member including coacting means for removably anchoring the opposite end portions of said flail member to selected longitudinally spaced portions of said elongated support member.
Claim 2
Dependent Claim
81 words
A flail-type ditch cleaner including a frame having horizontally spaced portions for positioning above the opposite sides of a ditch to be cleaned and movement along the ditch, an elongated rigid rotary support member rotatable about its longitudinal axis and extending between and journalled from said spaced portions of said frame, and an elongated flexible flail member including coacting means for removably anchoring the opposite end portions of said flail member to selected longitudinally spaced portions of said elongated support member.
Claim 3
Dependent Claim
66 words
The combination of claim 1, including a wheeled vehicle having a vertically shiftable support portion, a support structure supported from said support portion for vertical shifting therewith, said frame being elongated with said support member extending longitudinally thereof, and means mounting one end portion of said frame on said support structure for angular displacement of said frame relative to said support structure about an upstanding axis.
Claim 4
Dependent Claim
24 words
The combination of claim 2, wherein said vehicle comprises a farm tractor and said support portion comprises an implement lift hitch on said tractor.
Claim 5
Dependent Claim
26 words
The combination of claim 3, wherein said tractor includes a power take-off, and drive transmission means drivingly connecting said power take-off to said elongated support member.
Claim 6
Dependent Claim
24 words
The combination of claim 2, including means operatively connected between said support structure and said frame for adjustably positioning the latter about said axis.
Claim 7
Dependent Claim
44 words
The combination of claim 1, including a generally quarter cylindrical shield supported from said frame generally concentric with the axis of rotation of said elongated support member and enclosing the rear quadrant of the upper arc portion through which said flail member is swingable.
Claim 8
Dependent Claim
15 words
The combination of claim 1, wherein said flail member comprises a length of link chain.
Claim 9
Dependent Claim
82 words
The combination of claim 2, wherein said vehicle comprises a farm tractor, said support portion comprises an implement lift hitch on said tractor, wherein said tractor includes a power take-off, drive transmission means drivingly connecting said power take-off to said elongated support member, including a generally quarter cylindrical shield supported from said frame generally concentric with the axis of rotation of said elongated support member and enclosing the rear quadrant of the upper arc portion through which said flail member is swingable.
References Cited (Backward Citations)
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US2850863A
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US3005301A
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US3181619A
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US3563011A
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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) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |