Patent US4556139A successfully refreshed from Google Patents.
Patent US3690055A successfully refreshed from Google Patents.
US3690055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agricultural machine with articulated frame and rotary implements
Assignee: Kuhn Freres and Cie
•
Filing: 1969-07-11
•
Granted: 1972-09-12
•
Expires: 1989-07-11
Abstract
Abstract The disclosure is of an agricultural machine, for example a tedding or swath-turning machine, comprising an articulated frame for towing and rotary implements mounted upon wheels or rollers or sledges or other carrier elements and adapted to be towed by an agricultural tractor or other vehicle, characterized in that the articulated frame has two articulations to permit the machine to follow the contours of the ground and these two articulations are disposed between the two carrier elements which are closest to the middle of the machine.
Inventors
- 👤 Walter Reber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:52
CPC Classifications
A; A01; A01D; A01D67/00; A01D78/00; A01D78/08; A01D78/10; A01D78/1078
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
222 words
An agricultural machine, for example a tedding machine or a swath-turning machine, comprising a frame, two arms, each pivotally connected to said frame and axially aligned constituting an operative position of said machine, said arms being foldable rearwardly into a substantially parallel position and constituting a transportation position of said machine, said machine includes a plurality of rotary rakes all operatively positioned on said arms, a tow-bar connected to said frame and adapted to be connected to a tractor, a control means for operatively varying the inclination, in said operating position, of said rotary rakes and said control means mounted on said tow-bar, said frame and said tow-bar are freely pivotally movable in a vertical plane when in said transportation position, a hinge operatively pivotally connecting each of said arms to said frame, and including a substantially vertically disposed first pivot axis pivotally connecting said hinge to said frame and a second substantially horizontally disposed second pivot axis connecting said arm to said hinge, said first pivot axes of both of said hinges cOnverge angularly towards each other in an upward direction, said frame is pivotally connected to said tow-bar about a horizontal axis, and said control means comprises a screw threaded rotary handle crank connected operatively to said tow-bar and to said frame at positions thereon spaced from said horizontal axis.
Claim 2
Dependent Claim
222 words
An agricultural machine, for example a tedding machine or a swath-turning machine, comprising a frame, two arms, each pivotally connected to said frame and axially aligned constituting an operative position of said machine, said arms being foldable rearwardly into a substantially parallel position and constituting a transportation position of said machine, said machine includes a plurality of rotary rakes all operatively positioned on said arms, a tow-bar connected to said frame and adapted to be connected to a tractor, a control means for operatively varying the inclination, in said operating position, of said rotary rakes and said control means mounted on said tow-bar, said frame and said tow-bar are freely pivotally movable in a vertical plane when in said transportation position, a hinge operatively pivotally connecting each of said arms to said frame, and including a substantially vertically disposed first pivot axis pivotally connecting said hinge to said frame and a second substantially horizontally disposed second pivot axis connecting said arm to said hinge, said first pivot axes of both of said hinges cOnverge angularly towards each other in an upward direction, said frame is pivotally connected to said tow-bar about a horizontal axis, and said control means comprises a screw threaded rotary handle crank connected operatively to said tow-bar and to said frame at positions thereon spaced from said horizontal axis.
Claim 3
Dependent Claim
131 words
An agricultural machine, for example a tedding machine or a swath-turning machine, comprising a frame, two arms, each pivotally connected to said frame and axially aligned constituting an operative position of said machine, said arms being foldable rearwardly into a substantially parallel position and constituting a transportation position of said machine, said machine includes a plurality of rotary rakes all operatively positioned on said arms, each of said arms operatively pivotally connected to said frame, and including a substantially vertically disposed first pivot axis operatively pivotally connecting each of said arms to said frame and a second substantially horizontally disposed second pivot axis operatively connecting each of said arm to said frame, and said first pivot axes of both of said arms converge angularly towards each other in an upward direction.
Claim 4
Dependent Claim
131 words
An agricultural machine, for example a tedding machine or a swath-turning machine, comprising a frame, two arms, each pivotally connected to said frame and axially aligned constituting an operative position of said machine, said arms being foldable rearwardly into a substantially parallel position and constituting a transportation position of said machine, said machine includes a plurality of rotary rakes all operatively positioned on said arms, each of said arms operatively pivotally connected to said frame, and including a substantially vertically disposed first pivot axis operatively pivotally connecting each of said arms to said frame and a second substantially horizontally disposed second pivot axis operatively connecting each of said arm to said frame, and said first pivot axes of both of said arms converge angularly towards each other in an upward direction.
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) | 1975-09-12 | 1976-03-13 | 1976-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-12 | 1980-03-13 | 1980-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-12 | 1984-03-13 | 1984-09-12 | $7700.00 | Window Closed / Lapsed |