US3559745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple bottom plow
Assignee: MASSEY COMBINES Corp A CORP OF ONTARIO
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Filing: 1967-08-31
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Granted: 1971-02-02
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Expires: 1987-08-31
Abstract
Abstract A multiple bottom plow including a frame having a hitch member which is pivotally connected to the frame so that the position of the plow relative to the tractor can be laterally shifted. A hydraulic ram is interconnected between the frame and hitch member for adjusting the position of the hitch member.
Inventors
- 👤 Howard G Thompson
- 👤 Ole J Thorsrud
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:57
CPC Classifications
A; A01; A01B; A01B63/00; A01B63/02; A01B63/023; A01B3/00; A01B3/24; A01B3/26
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
267 words
A semimounted moldboard plow comprising a carrier frame, forward connecting means for connecting the carrier frame to the rear of a draft vehicle, ground support means on the carrier frame for supporting at least a portion of the weight of the carrier frame when it is connected with a draft vehicle and for controlling implement movement along a predetermined line of draft, a plurality of plow bottoms supported on the carrier frame operable to engage the ground at laterally spaced points as the carrier frame is drawn in the line of draft along the ground by the draft vehicle, a forwardly projecting hitch member having its rear end mounted on said carrier frame for pivotal movement about an upright axis, and wherein said forward connecting means is mounted on the forward end of the hitch member, said carrier frame including a front, curved frame member, fore and aft extending side frame members, and an oblique main beam extending between the side frame members; said hitch member including at least one surface for supporting the forward portion of the hitch member on the front, curved frame member, said forward connecting means being shiftable laterally relative to the carrier frame to selectively change the lateral position of the carrier frame relative to the draft vehicle without changing the line of draft or the effective width of the plow, said ground support means including a steerable rear wheel on the carrier frame, and linkage means connecting the steerable rear wheel with said forward connecting means for steering the plow in accordance with changes in the direction of the draft vehicle.
Claim 2
Dependent Claim
267 words
A semimounted moldboard plow comprising a carrier frame, forward connecting means for connecting the carrier frame to the rear of a draft vehicle, ground support means on the carrier frame for supporting at least a portion of the weight of the carrier frame when it is connected with a draft vehicle and for controlling implement movement along a predetermined line of draft, a plurality of plow bottoms supported on the carrier frame operable to engage the ground at laterally spaced points as the carrier frame is drawn in the line of draft along the ground by the draft vehicle, a forwardly projecting hitch member having its rear end mounted on said carrier frame for pivotal movement about an upright axis, and wherein said forward connecting means is mounted on the forward end of the hitch member, said carrier frame including a front, curved frame member, fore and aft extending side frame members, and an oblique main beam extending between the side frame members; said hitch member including at least one surface for supporting the forward portion of the hitch member on the front, curved frame member, said forward connecting means being shiftable laterally relative to the carrier frame to selectively change the lateral position of the carrier frame relative to the draft vehicle without changing the line of draft or the effective width of the plow, said ground support means including a steerable rear wheel on the carrier frame, and linkage means connecting the steerable rear wheel with said forward connecting means for steering the plow in accordance with changes in the direction of the draft vehicle.
Claim 3
Dependent Claim
26 words
A moldboard plow as claimed in claim 1 further including power means for selectively shifting the forward connecting means relative to the carrier frame during travel.
Claim 4
Dependent Claim
31 words
A moldboard plow as claimed in claim 1 further including a hydraulic ram mounted between the carrier frame and hitch member for selectively actuating said hitch member about said upright axis.
Claim 5
Dependent Claim
85 words
A moldboard plow as claimed in claim 1 further including a lever pivotally mounted on said main beam having its free end located substantially at the upright pivotal axis of the hitch member, and wherein said linkage means includes a first rod connected between said forward connecting means and the free end of said lever such that pivotal movement of the hitch member during lateral shifting of the carrier frame relative to the draft vehicle will not affect the position of the steerable rear wheel.
Claim 6
Dependent Claim
31 words
The moldboard plow of claim 1 wherein said surface on the hitch member for supporting the forward portion of the hitch member on the front, curved frame member includes a roller.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |