US3583256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission
Assignee: Motors Liquidation Co
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Filing: 1969-11-19
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Granted: 1971-06-08
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Expires: 1989-11-19
Abstract
Abstract A transmission having a hydrostatic propulsion drive unit combined with range planetary gearing to provide in both forward and reverse a full hydrostatic drive in a low speed range and five hydromechanical drives in successively higher speed ranges with synchronous drive establishing device shifting, the transmission with dual output also having a separate hydrostatic steer drive unit combined with the gearing to provide steering.
Inventors
- 👤 William G Livezey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:25
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/02; F16H47/04; F16H37/00; F16H37/02; F16H37/06; F16H37/08; F16H37/0833; F16H37/084; F16H2037/088; F16H2047/045
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
303 words
In a transmission the combination of an input shaft; an output shaft; variable speed ratio hydrostatic drive means drivingly connected to said input shaft; first, second and third planetary gearsets each having three members comprising sun gear member, a ring gear member and a carrier member carrying pinion means operatively geared with the sun gear member and the ring gear member; one member of said first and second gearsets drivingly connected to said hydrostatic drive means; brake means for braking another member of said first gearset; mechanical drive train means including a first clutch for selectively drivingly connecting said input shaft to another member of said second gearset; the third member of said first gearset, the third member of said second gearset and one member of said third gearset all being drivingly connected; mechanical drive train means including a second clutch for selectively drivingly connecting said input shaft to said another member of said first gearset; another member of said third gearset drivingly connected to aid output shaft; a third clutch for selectively locking up said third gearset; and mechanical drive train means including a fourth clutch for selectively drivingly connecting said input shaft to the third member of said third gearset whereby there is effected three drives in successively higher speed ranges between said input shaft and said output shaft when said third clutch is engaged and on sequential engagement of said brake, said first clutch and said second clutch and there is effected an additional three drives in successively higher speed ranges between said input shaft and said output shaft when said fourth clutch is engaged and on sequential engagement of said second clutch, said first clutch and said brake and whereby the speed ratio in all said drives is varied by varying the speed ratio of said hydrostatic drive means.
Claim 2
Dependent Claim
303 words
In a transmission the combination of an input shaft; an output shaft; variable speed ratio hydrostatic drive means drivingly connected to said input shaft; first, second and third planetary gearsets each having three members comprising sun gear member, a ring gear member and a carrier member carrying pinion means operatively geared with the sun gear member and the ring gear member; one member of said first and second gearsets drivingly connected to said hydrostatic drive means; brake means for braking another member of said first gearset; mechanical drive train means including a first clutch for selectively drivingly connecting said input shaft to another member of said second gearset; the third member of said first gearset, the third member of said second gearset and one member of said third gearset all being drivingly connected; mechanical drive train means including a second clutch for selectively drivingly connecting said input shaft to said another member of said first gearset; another member of said third gearset drivingly connected to aid output shaft; a third clutch for selectively locking up said third gearset; and mechanical drive train means including a fourth clutch for selectively drivingly connecting said input shaft to the third member of said third gearset whereby there is effected three drives in successively higher speed ranges between said input shaft and said output shaft when said third clutch is engaged and on sequential engagement of said brake, said first clutch and said second clutch and there is effected an additional three drives in successively higher speed ranges between said input shaft and said output shaft when said fourth clutch is engaged and on sequential engagement of said second clutch, said first clutch and said brake and whereby the speed ratio in all said drives is varied by varying the speed ratio of said hydrostatic drive means.
Claim 3
Dependent Claim
36 words
The transmission set forth in claim 1 and said one member, said another member and said third member of said third gearset being the sun gear member, the ring gear member and the carrier member, respectively.
Claim 4
Dependent Claim
36 words
The transmission set forth in claim 1 and said one member, said another member and said third member of said third gearset being the ring gear member, the sun gear member and the carrier member, respectively.
Claim 5
Dependent Claim
66 words
The transmission set forth in claim 1 and said one member, said another member and said third member of said third gearset being the carrier member, the sun gear member and the ring gear member, respectively, the pinion means in said third gear set comprising one pinion meshing with the sun gear member and another pinion meshing with said one pinion and the ring gear member.
Claim 6
Dependent Claim
34 words
The transmission set forth in claim 1 and forward and reverse drive means for selectively providing a forward drive and a reverse drive between said input shaft and all of said mechanical drive means.
Claim 7
Dependent Claim
174 words
The transmission set forth in claim 5 and a pair of steer planetary gear means each having a sun gear member, a ring gear member and a carrier member carrying a pinion meshing with the sun gear member and the ring gear member; means drivingly connecting said output shAft to one pair of like members of said steer planetary gear means; direction reversing gear train means operatively connecting another pair of like members of said steer planetary gear means; variable speed ratio hydrostatic steer drive means for operatively drivingly connecting said input shaft to said another pair of like members of said steer planetary gear means whereby the remaining pair of like members of said steer planetary gear means provide to output drives having equal speed on establishment of said speed range drives with a differential speed effected between said output drives to produce steering whenever said hydrostatic steer drive means drives said direction reversing gear train wherein said differential speed is varied by varying the speed ratio of said hydrostatic steer drive means.
Claim 8
Dependent Claim
215 words
In a transmission the combination of an input shaft; an output shaft; variable speed ratio hydrostatic drive means drivingly connected to said input shaft; a pair of planetary gearsets each having a sun gear member, a ring gear member and a carrier member carrying pinion means operatively geared with the sun gear member and the ring gear member; one member of one gearset drivingly connected to said hydrostatic drive means; brake for braking another member of said one gearset; the third member of said one gearset drivingly connected to one member of the other gearset; another member of said other gearset drivingly connected to said output shaft; a first clutch for selectively locking up and other gearset; and mechanical drive train means including a second clutch for selectively drivingly connecting said input shaft to the third member of said other gearset whereby there is effected a drive between said input shaft and said output shaft when both said brake and said first clutch are engaged and there is effected another drive in a higher speed range between said input shaft and said output shaft when both said brake and said second clutch are engaged and whereby the speed ratio in both said drives is varied by varying e speed ratio of said hydrostatic drive means.
Claim 9
Dependent Claim
215 words
In a transmission the combination of an input shaft; an output shaft; variable speed ratio hydrostatic drive means drivingly connected to said input shaft; a pair of planetary gearsets each having a sun gear member, a ring gear member and a carrier member carrying pinion means operatively geared with the sun gear member and the ring gear member; one member of one gearset drivingly connected to said hydrostatic drive means; brake for braking another member of said one gearset; the third member of said one gearset drivingly connected to one member of the other gearset; another member of said other gearset drivingly connected to said output shaft; a first clutch for selectively locking up and other gearset; and mechanical drive train means including a second clutch for selectively drivingly connecting said input shaft to the third member of said other gearset whereby there is effected a drive between said input shaft and said output shaft when both said brake and said first clutch are engaged and there is effected another drive in a higher speed range between said input shaft and said output shaft when both said brake and said second clutch are engaged and whereby the speed ratio in both said drives is varied by varying e speed ratio of said hydrostatic drive means.
Claim 10
Dependent Claim
229 words
In a transmission the combination of an input shaft; an output shaft; variable speed ratio hydrostatic drive means drivingly connected to said input shaft; a pair of planetary gearsets each having a sun gear member, a ring gear member and a carrier member having pinion means operatively geared with the sun gear member and the ring gear member; one member of one gearset drivingly connected to said hydrostatic drive means; mechanical drive train means including a first clutch for selectively drivingly connecting said input shaft to another member of said one gearset; the third member of said one gearset drivingly connected to one member of the other gearset; another member of said other gearset drivingly connected to said output shaft; second clutch for selectively locking up said other gearset; and mechanical drive train means including a third clutch for selectively drivingly connecting said input shaft to the third member of said other gearset whereby there is effected a drive between said input shaft and said output shaft when both said first clutch and said second clutch are engaged and there is effected a drive in a higher speed range between said input shaft and said output shaft when both said first clutch and said third clutch are engaged and whereby the speed ratio in both said drives is varied by varying the speed ratio of said hydrostatic drive means.
Claim 11
Dependent Claim
229 words
In a transmission the combination of an input shaft; an output shaft; variable speed ratio hydrostatic drive means drivingly connected to said input shaft; a pair of planetary gearsets each having a sun gear member, a ring gear member and a carrier member having pinion means operatively geared with the sun gear member and the ring gear member; one member of one gearset drivingly connected to said hydrostatic drive means; mechanical drive train means including a first clutch for selectively drivingly connecting said input shaft to another member of said one gearset; the third member of said one gearset drivingly connected to one member of the other gearset; another member of said other gearset drivingly connected to said output shaft; second clutch for selectively locking up said other gearset; and mechanical drive train means including a third clutch for selectively drivingly connecting said input shaft to the third member of said other gearset whereby there is effected a drive between said input shaft and said output shaft when both said first clutch and said second clutch are engaged and there is effected a drive in a higher speed range between said input shaft and said output shaft when both said first clutch and said third clutch are engaged and whereby the speed ratio in both said drives is varied by varying the speed ratio of said hydrostatic drive means.
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) | 1974-06-07 | 1974-12-07 | 1975-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-07 | 1978-12-07 | 1979-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-07 | 1982-12-07 | 1983-06-08 | $7700.00 | Window Closed / Lapsed |