US3715704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reversible power take-off shaft
Assignee: Case LLC
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Filing: 1971-11-03
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Granted: 1973-02-06
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Expires: 1991-11-03
Abstract
Abstract A power take-off shaft having two standard spline ends and a third off centrally located spline set. In conjunction with a multi-speed independent power take-off unit, the single shaft is reversible to provide two different output speeds.
Inventors
- 👤 R Boyle
- 👤 L Paulius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:43
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/001
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
100 words
A power take-off assembly for a tractor being pivotable to provide a multiplicity of output speeds in conjunction with a single power take-off shaft comprising: a multi-speed independent power take-off unit having a movable cage carried by said tractor, said cage havIng an eccentric means therein, said means having a bore with first and second internal spline sets; and a reversible power take-off shaft having a first, second and third spline sets, said second spline set being positioned to one side between said first and third set and having a diameter greater than that of said first and third set.
Claim 2
Dependent Claim
100 words
A power take-off assembly for a tractor being pivotable to provide a multiplicity of output speeds in conjunction with a single power take-off shaft comprising: a multi-speed independent power take-off unit having a movable cage carried by said tractor, said cage havIng an eccentric means therein, said means having a bore with first and second internal spline sets; and a reversible power take-off shaft having a first, second and third spline sets, said second spline set being positioned to one side between said first and third set and having a diameter greater than that of said first and third set.
Claim 3
Dependent Claim
100 words
A power take-off assembly for a tractor being pivotable to provide a multiplicity of output speeds in conjunction with a single power take-off shaft comprising: a multi-speed independent power take-off unit having a movable cage carried by said tractor, said cage havIng an eccentric means therein, said means having a bore with first and second internal spline sets; and a reversible power take-off shaft having a first, second and third spline sets, said second spline set being positioned to one side between said first and third set and having a diameter greater than that of said first and third set.
Claim 4
Dependent Claim
100 words
A power take-off assembly for a tractor being pivotable to provide a multiplicity of output speeds in conjunction with a single power take-off shaft comprising: a multi-speed independent power take-off unit having a movable cage carried by said tractor, said cage havIng an eccentric means therein, said means having a bore with first and second internal spline sets; and a reversible power take-off shaft having a first, second and third spline sets, said second spline set being positioned to one side between said first and third set and having a diameter greater than that of said first and third set.
Claim 5
Dependent Claim
40 words
The power take-off assembly of claim 1 wherein said first spline set of said shaft meshes with said first internal spline set of said bore and said second spline set of said shaft meshes with said second internal spline set.
Claim 6
Dependent Claim
16 words
The power take-off assembly of claim 1 wherein said power take-off shaft is a cylindrical shaft.
Claim 7
Dependent Claim
30 words
The power take-off assembly of claim 1 wherein said first spline set has six teeth, said second spline set has 27 teeth and said third spline set has 21 teeth.
Claim 8
Dependent Claim
20 words
The power take-off assembly of claim 1 wherein said second spline set is off centered toward said third spline set.
Claim 9
Dependent Claim
86 words
A movable cage power take-off assembly fixed to the frame of a tractor, means eccentrically carried by said cage and having a bore means therein said bore means having first and second internal spline sets; and wherein the improvement comprises a reversible cylindrical power take-off shaft having a first, second and third spline set, said second spline set being positioned to one side of said shafts center between said first and third set and having a diameter slightly greater than said first and third spline sets.
Claim 10
Dependent Claim
86 words
A movable cage power take-off assembly fixed to the frame of a tractor, means eccentrically carried by said cage and having a bore means therein said bore means having first and second internal spline sets; and wherein the improvement comprises a reversible cylindrical power take-off shaft having a first, second and third spline set, said second spline set being positioned to one side of said shafts center between said first and third set and having a diameter slightly greater than said first and third spline sets.
Claim 11
Dependent Claim
44 words
The reversible cylindrical power take-off shaft of claim 6 wherein said first spline set has six teeth, said second spline set has 27 teeth and said third spline set has 21 teeth, said second spline set being off centered toward said third spline set.
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) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |