US3929037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Six speed power shift transmission
Assignee: Deutz Allis Corp
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Filing: 1974-05-30
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Granted: 1975-12-30
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Expires: 1994-05-30
Abstract
Abstract A six speed power shift transmission having three planetary gearsets and a countershaft gearset with one of the planetary gearsets providing a reverse gear drive. The shifting is accomplished by five hydraulically actuated clutches and one brake to provide six forward speeds and one reverse.
Inventors
- 👤 James E Marsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:57
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/62; F16H3/66; F16H57/00; F16H57/08; F16H57/10; F16H2200/00; F16H2200/003; F16H2200/0052; F16H2200/20; F16H2200/2002; F16H2200/201; F16H2200/2097
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
285 words
A vehicle transmission comprising, an input shaft and an output shaft rotatably mounted in a transmission casing and on a common axis of rotation, a front planetary gearset having a sun gear connected to said input shaft, an intermediate planetary gearset, a rear planetary gearset having a sun gear connected to said transmission casing, each of said planetary gearsets including a sun gear having an axis mounted on said common axis, each of said planetary gearsets including the elements of a sun gear, a ring gear, and a planetary carrier, means connecting the planetary carriers of said front planetary gearset and said rear planetary gearsets and the sun gear of said intermediate planetary gearset to said output shaft, means connecting the ring gear of the front planetary gearset and the planetary carrier of the intermediate planetary gearset, a front clutch housing and a rear clutch housing rotatably mounted on said common axis, a countershAft gearset rotatably mounted on a second axis parallel with said common axis including a drive gear on said front clutch housing, a driven gear on said rear clutch housing, and a countershaft having gears engaging said drive and driven gears of said clutch housings, a plurality of clutches connected to said front clutch housing, each clutch including a friction member singularly connected to at least one of said elements of said front planetary gearset, a plurality of clutches connected to said rear clutch housing, each of said clutches connected to said rear clutch housing including a friction member singularly connected to at least one of said ring gears of said intermediate planetary gearset and said rear planetary gearset, means selectively engaging said clutches to selectively provide power paths through said transmission.
Claim 2
Dependent Claim
285 words
A vehicle transmission comprising, an input shaft and an output shaft rotatably mounted in a transmission casing and on a common axis of rotation, a front planetary gearset having a sun gear connected to said input shaft, an intermediate planetary gearset, a rear planetary gearset having a sun gear connected to said transmission casing, each of said planetary gearsets including a sun gear having an axis mounted on said common axis, each of said planetary gearsets including the elements of a sun gear, a ring gear, and a planetary carrier, means connecting the planetary carriers of said front planetary gearset and said rear planetary gearsets and the sun gear of said intermediate planetary gearset to said output shaft, means connecting the ring gear of the front planetary gearset and the planetary carrier of the intermediate planetary gearset, a front clutch housing and a rear clutch housing rotatably mounted on said common axis, a countershAft gearset rotatably mounted on a second axis parallel with said common axis including a drive gear on said front clutch housing, a driven gear on said rear clutch housing, and a countershaft having gears engaging said drive and driven gears of said clutch housings, a plurality of clutches connected to said front clutch housing, each clutch including a friction member singularly connected to at least one of said elements of said front planetary gearset, a plurality of clutches connected to said rear clutch housing, each of said clutches connected to said rear clutch housing including a friction member singularly connected to at least one of said ring gears of said intermediate planetary gearset and said rear planetary gearset, means selectively engaging said clutches to selectively provide power paths through said transmission.
Claim 3
Dependent Claim
29 words
A vehicle transmission as set forth in claim 1 including a brake connected to said transmission casing, said brake including a friction member connected to said front clutch housing.
Claim 4
Dependent Claim
69 words
A vehicle transmission as set forth in claim 1 wherein one of said clutches connected to said front clutch housing includes a friction member connected to the ring gear of said front planetary gearset, one of said clutches connected to said rear clutch housing includes a friction member connected to the ring gear of said rear planetary gearset to provide reverse rotation of the output shaft of said transmission.
Claim 5
Dependent Claim
58 words
A vehicle transmission as set forth in claim 2 wherein said brake includes a friction member connected to said front clutch housing, one of said clutches connected to said front clutch housing includes a friction member connected to the ring gear of said front planetary gearset to provide a high torque and forward rotation of the output shaft.
Claim 6
Dependent Claim
67 words
A vehicle transmission as set forth in claim 1 wherein said transmission includes a brake connected to said transmission housing, said brake includes a friction member connected to the front clutch housing, one of said clutches connected to said rear clutch housing includes a friction member connected to the ring gear of said intermediate planetary gearset to provide a high torque forward rotation of the output shaft.
Claim 7
Dependent Claim
66 words
A vehicle transmission as set forth in claim 1 wherein one of said clutches connected to said front clutch housing includes a friction member connected to the ring gear of said front planetary gearset, one of said clutches connected to the rear clutch housing includes a friction member connected to the ring gear of said intermediate planetary gearset to provide forward rotation of the output shaft.
Claim 8
Dependent Claim
67 words
A vehicle transmission as set forth in claim 1 wherein one of said clutches connected to said front clutch housing includes a friction member connected to the planetary carrier of said front planetary gearset, one of said clutches connected to said rear clutch housing includes a friction member connected the ring gear of said intermediate planetary gearset to thereby provide a forward rotation of the output shaft.
Claim 9
Dependent Claim
70 words
A vehicle transmission as set forth in claim 1 wherein one of said clutches connected to said front clutch housing includes a friction member connected to the sun gear of said front planetary gearset, one of said clutches connected to said rear clutch housing includes a friction member connected to the ring gear of said intermediate planetary gearset to provide a forward rotation of the output shaft of said transmission.
Claim 10
Dependent Claim
79 words
A vehicle transmission as set forth in claim 1 wherein one of said clutches connected to said front clutch housing includes a friction member connected to the sun gear of said front planetary gearset, one of said clutches connected to said front clutch housing includes a friction member connected to the ring gear of said front planetary gearset to thereby lock the front planetary gearset and drive directly from the input shaft to the output shaft of said transmission.
Claim 11
Dependent Claim
30 words
A vehicle transmission as set forth in claim 1 including a two-speed range transmission connected to said vehicle transmission to double the number of output speeds of said vehicle transmission.
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) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |