Patent US3592080A successfully refreshed from Google Patents.
US3592080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission gearbox, preferably for use in a tractor
Assignee: Individual
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Filing: 1969-05-20
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Granted: 1971-07-13
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Expires: 1989-05-20
Abstract
Abstract A transmission gearbox, for use with a tractor or the like comprising a housing, an input shaft located within the housing and being provided with a driving member and a driven member, a coupling element connecting the driving and driven members, layshafts located within the housing, continually mesh in gears operatively communicating with the input shaft and layshafts for transmitting torque from the input shafts and layshafts, friction clutches causing the continually mesh gears to communicate with the layshafts, output shafts are lined with the layshafts, and reversing coupling gears into locking when a forward speed is provided by the gearbox and for connecting the output shaft to the layshaft when a reverse speed is provided.
Inventors
- 👤 Jury Petrovich Samatov
- 👤 Mikhail Davidovich Goldin
- 👤 Evgeny Ivanovich Tarakanov
- 👤 Vladimir Vasilievi Emelyanenko
- 👤 Ivan Savvateevich Kaviarov
- 👤 Vladimir Segeevich Malchikov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:45
CPC Classifications
F; F16; F16H; F16H37/00; F16H37/02; F16H37/04; F16H37/042; F16H37/046; F16H2200/00; F16H2200/003; F16H2200/0039; F16H2200/0082; F16H2200/0091; F16H2700/00; F16H2700/02; F16H2702/00; F16H3/00; F16H3/02; F16H3/08; F16H3/087; F16H3/093; F16H3/095
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
127 words
A transmission gearbox capable of providing a plurality of forward and reverse speeds for use with a tractor or the like comprising a housing, an input shaft located within said housing and being provided with a driving member and a driven member, a coupling element connecting said driving member to said driven member, layshafts located within said housing, continually meshing gears operatively communicating with said input shaft and said layshafts for transmitting torque from said input shaft to said layshafts, friction clutches causing said continually meshing gears to communicate with said layshafts, output shafts aligned with said layshafts, and reversing coupling gears interlocking when a forward speed is provided by said gearbox and for connectinG said output shafts to said layshafts when a reverse speed is provided.
Claim 2
Dependent Claim
127 words
A transmission gearbox capable of providing a plurality of forward and reverse speeds for use with a tractor or the like comprising a housing, an input shaft located within said housing and being provided with a driving member and a driven member, a coupling element connecting said driving member to said driven member, layshafts located within said housing, continually meshing gears operatively communicating with said input shaft and said layshafts for transmitting torque from said input shaft to said layshafts, friction clutches causing said continually meshing gears to communicate with said layshafts, output shafts aligned with said layshafts, and reversing coupling gears interlocking when a forward speed is provided by said gearbox and for connectinG said output shafts to said layshafts when a reverse speed is provided.
Claim 3
Dependent Claim
43 words
A transmission gearbox as set forth in claim 1, wherein said driving and driven members of said input shaft are hollow and said coupling element is a torsion bar, and said reversing coupling gears is provided with epicyclic reducing gears having friction clutches.
Claim 4
Dependent Claim
26 words
A transmission gearbox as claimed in claim 2, including band brake means, said epicyclic reducing gears having a driven member rigidly coupled to said brake means.
Claim 5
Dependent Claim
56 words
A transmission gearbox as claimed in claim 2, including an auxiliary reducing gear unit having driving and driven members, a torsion bar for coupling said driving members of said input shaft and said auxiliary reducing gear unit, the driven members of said reducing gear unit being operatively connected with the driven member of said input shaft.
Claim 6
Dependent Claim
26 words
A transmission gearbox as claimed in claim 4, including band brake means, said epicyclic reducing gears having a driven member rigidly coupled to said brake means.
Claim 7
Dependent Claim
56 words
A transmission gearbox as claimed in claim 1, including an auxiliary reducing gear unit having driving and driven members, a torsion bar for coupling said driving members of said input shaft and said auxiliary reducing gear unit, the driven members of said reducing gear unit being operatively connected with the driven member of said input shaft.
Claim 8
Dependent Claim
26 words
A transmission gearbox as claimed in claim 6, including band brake means, said epicyclic reducing gears having a driven member rigidly coupled to said brake means.
Claim 9
Dependent Claim
19 words
A transmission gearbox as claimed in claim 6, wherein said reducing gear unit is either stepdown or a step-up.
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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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |