US3637028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Offset disk harrow
Assignee: Case LLC
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Filing: 1970-06-08
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Granted: 1972-01-25
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Expires: 1990-06-08
Abstract
Abstract An offset disk harrow wherein the front and rear gangs are supported by a unitary frame structure to the ends of which each gang is connected by a single pivot, and wherein the frame structure includes articulated parts, one of which supports the rear gang and can be laterally angled relative to the other frame part and rigidly held in selected adjusted positions to laterally shift the rear gang bodily relative to the front gang.
Inventors
- 👤 Jerome L Fueslein
- 👤 William M Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:56
CPC Classifications
A; A01; A01B; A01B21/00; A01B21/08; A01B23/00; A01B23/04; A01B23/046
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
173 words
In a tractor propelled offset disk harrow, front and rear disk gangs relatively angled in their operating position and converging to one side of the direction of travel, a frame structure having relatively forward and aft disposed portions, vertical pivot means connecting one of said gangs to one of the frame structure portions, a gang-mounting structure mounted on the other frame structure portion being selectively adjustable laterally of the frame structure, vertical axle pivot means connecting the other gang with said mounting structure for lateral adjustment therewith, and means connected between the frame structure and said other gang to selectively vary the position thereof about said vertical axis pivot means, said other frame structure portion is a hollow member and said gang-mounting structure is slidably received therein and is pivotally connected thereto, an opening formed in said other frame structure and a plurality of registering openings provided in said gang-mounting structure on an arc about an axis of said pivotal connection and a locking pin optionally received in a set of registering openings.
Claim 2
Dependent Claim
173 words
In a tractor propelled offset disk harrow, front and rear disk gangs relatively angled in their operating position and converging to one side of the direction of travel, a frame structure having relatively forward and aft disposed portions, vertical pivot means connecting one of said gangs to one of the frame structure portions, a gang-mounting structure mounted on the other frame structure portion being selectively adjustable laterally of the frame structure, vertical axle pivot means connecting the other gang with said mounting structure for lateral adjustment therewith, and means connected between the frame structure and said other gang to selectively vary the position thereof about said vertical axis pivot means, said other frame structure portion is a hollow member and said gang-mounting structure is slidably received therein and is pivotally connected thereto, an opening formed in said other frame structure and a plurality of registering openings provided in said gang-mounting structure on an arc about an axis of said pivotal connection and a locking pin optionally received in a set of registering openings.
Claim 3
Dependent Claim
83 words
The invention set forth in claim 1, wherein the means connected between the frame structure and said other gang is an extensible and retractable force transmission member pivotally connected at one end to the frame structure and at the other end to said other gang and forming with said gang-mounting structure a generally parallel link arrangement accommodating said lateral adjustment of the gang-mounting structure relative to said other frame structure portion while maintaining the included angle between said front and rear disk gangs.
Claim 4
Dependent Claim
82 words
The invention set forth in claim 1 wherein the means connected between said frame structure and said other gang is a rigid member adjustable in length pivotally connected at one end to the frame structure and at the other end to said other gang and forming with said gang-mounting structure a generally parallel link arrangement accommodating said lateral adjustment of the gang-mounting structure relative to said other frame structure portion while maintaining the included angle between said front and rear disk gangs.
Claim 5
Dependent Claim
206 words
In an offset disk harrow, a unitary frame structure having relatively forward and aft disposed portions, front and rear disk gangs relatively angled in their operating position and converging to one side of the direction of travel, vertical pivot means connecting one of said gangs to one of said frame structure portions in proximity with the lateral center of balance of said one of said gangs, a gang-mounting structure mounted on the other of said frame structure portions, vertical axis pivot means connecting the other gang with said mounting structure in proximity with the lateral center of balance of said other of said gangs, and means connected between the frame structure and the other gang to selectively vary the position thereof about said vertical axis pivot means said gang-mounting structure includes means for selectively adjusting the gang-mounting structure laterally of the frame structure, said other frame structure portion is a hollow member and said gang-mounting structure is slidably received therein and is piVotally connected thereto, an opening formed in said other frame structure and a plurality of registering openings formed in said gang-mounting structure on an arc about an axis of said pivotal connection and a locking pin optionally received in a set of registering openings.
Claim 6
Dependent Claim
206 words
In an offset disk harrow, a unitary frame structure having relatively forward and aft disposed portions, front and rear disk gangs relatively angled in their operating position and converging to one side of the direction of travel, vertical pivot means connecting one of said gangs to one of said frame structure portions in proximity with the lateral center of balance of said one of said gangs, a gang-mounting structure mounted on the other of said frame structure portions, vertical axis pivot means connecting the other gang with said mounting structure in proximity with the lateral center of balance of said other of said gangs, and means connected between the frame structure and the other gang to selectively vary the position thereof about said vertical axis pivot means said gang-mounting structure includes means for selectively adjusting the gang-mounting structure laterally of the frame structure, said other frame structure portion is a hollow member and said gang-mounting structure is slidably received therein and is piVotally connected thereto, an opening formed in said other frame structure and a plurality of registering openings formed in said gang-mounting structure on an arc about an axis of said pivotal connection and a locking pin optionally received in a set of registering openings.
Claim 7
Dependent Claim
83 words
The invention set forth in claim 4 wherein the means connected between the frame structure and said other gang is an extensible and retractable force transmission member pivotally connected at one end to the frame structure and at the other end to said other gang and forming with said gang-mounting structure a generally parallel link arrangement accommodating said lateral adjustment of the gang-mounting structure relative to said other frame structure portion while maintaining the included angle between said front and rear disk gangs.
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) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |