Patent US3620308A successfully refreshed from Google Patents.
US3620308A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Towing means for agricultural implement
Assignee: Case LLC
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Filing: 1969-09-10
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Granted: 1971-11-16
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Expires: 1989-09-10
Abstract
Abstract An agricultural implement, such as a cultivator, having a frame and two draft means or tongues. One of the tongues serves to move the implement in one direction during operation, and the other of the tongues serves to move the implement in another direction during transport. Transport wheels are affixed to the implement and are offset relative to the main frame of the implement. Accordingly, the second draft means is swingable on the frame and between a lowered position for transport, and aligned on the vertical plane centrally of the wheels when the draft means is in the downwardly swung position. The draft means is also swung upwardly to the inoperative position to overlie the implement.
Inventors
- 👤 John G Christopher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:51
CPC Classifications
A; A01; A01B; A01B73/00; A01B73/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
346 words
In an agricultural implement of the type towed by a tractor having a drawbar, an implement frame having a horizontally oriented longitudinal axis and being arranged to be towed in a first direction relative to said longitudinal axis for operating the implement on the ground, a first draft means on said implement frame for towing the latter in said first direction, a second draft means on said implement frame and extending therefrom for towing the latter in a direction transverse to said first direction, a towing connection hitch on the extending end of said second draft means for connecting with said tractor, two transport ground wheels on said implement frame and facing in said transverse direction and being on opposite sides of said longitudinal axis and unequally spaced therefrom to be unequally horizontally offset from said longitudinal axis, the improvement comprising a pivot connection between said implement frame and said second draft means to have the latter up and down swingably mounted on said implement frame and with the free end of said second draft means being disposed below the horizontal level of said implement frame when in the downwardly swung position, releasable securing means operatively connected between said second draft means and said implement frame for releasably securing said second draft means in said downwardly swung position, said towing connection hitch being located on said second draft means central relative to the vertical center plane intermediate said two transport ground wheels when said second draft means is secured in said downwardly swung position, a pivot pin included in said pivot connection and swingably connecting said second draft means to said implement frame, said pivot pin having its axis at an angle to both the vertical and the horizontal for swinging said second draft means on an oblique plane which is the plane transverse to said angle and with said pivot pin axis being offset from said longitudinal axis of said implement frame to effect positioning of said second draft means overlying said implement frame when said second draft means is in the upwardly swung position.
Claim 2
Dependent Claim
346 words
In an agricultural implement of the type towed by a tractor having a drawbar, an implement frame having a horizontally oriented longitudinal axis and being arranged to be towed in a first direction relative to said longitudinal axis for operating the implement on the ground, a first draft means on said implement frame for towing the latter in said first direction, a second draft means on said implement frame and extending therefrom for towing the latter in a direction transverse to said first direction, a towing connection hitch on the extending end of said second draft means for connecting with said tractor, two transport ground wheels on said implement frame and facing in said transverse direction and being on opposite sides of said longitudinal axis and unequally spaced therefrom to be unequally horizontally offset from said longitudinal axis, the improvement comprising a pivot connection between said implement frame and said second draft means to have the latter up and down swingably mounted on said implement frame and with the free end of said second draft means being disposed below the horizontal level of said implement frame when in the downwardly swung position, releasable securing means operatively connected between said second draft means and said implement frame for releasably securing said second draft means in said downwardly swung position, said towing connection hitch being located on said second draft means central relative to the vertical center plane intermediate said two transport ground wheels when said second draft means is secured in said downwardly swung position, a pivot pin included in said pivot connection and swingably connecting said second draft means to said implement frame, said pivot pin having its axis at an angle to both the vertical and the horizontal for swinging said second draft means on an oblique plane which is the plane transverse to said angle and with said pivot pin axis being offset from said longitudinal axis of said implement frame to effect positioning of said second draft means overlying said implement frame when said second draft means is in the upwardly swung position.
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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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |