US3584520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission
Assignee: Motors Liquidation Co
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Filing: 1969-11-28
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Granted: 1971-06-15
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Expires: 1989-11-28
Abstract
Abstract A vehicle transmission having a hydrodynamic torque converter and planetary gearing combined with three clutches, three brakes, two one-way brakes and a one-way clutch to provide four forward drives including an overdrive and also to provide a reverse drive.
Inventors
- 👤 August H Borman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:52
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; F16H47/08; F16H2200/00; F16H2200/20; F16H2200/202; F16H2200/2023
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
346 words
In a transmission the combination of an input member; an output member; planetary gearing having a first sun gear, a second sun gear, a ring gear, a carrier carrying a first planet pinion meshing with said first sun gear, said carrier also carrying a second planet pinion meshing with said first planet pinion, said second sun gear and said ring gear, said ring gear being connected to said output member; first clutch means for selectively connecting said input member to said first sun gear; second clutch means for selectively connecting said input member to said carrier; third clutch means for selectively connecting said input member to said second sun gear; first drive establishing means for selectively preventing rotation of said carrier in only one direction and, alternatively, in any direction; second drive establishing means for selectively preventing rotation of said second sun gear in only one direction and, alternatively, in any direction; and one-way clutch means for preventing rotation of said second sun gear relative to said input member when said first clutch means is disengaged while said second clutch means is engaged whereby a first forward speed range drive is provided on engagement of said first clutch means and operation of said first drive establishing means to prevent rotation of said carrier in at least one direction, a second forward speed range drive is provided on engagement of said first clutch means and operation of said second drive establishing means to prevent rotation of said second sun gear in at least one direction, a third forward speed range drive is provided on engagement of said first clutch means and said second clutch means, a fourth forward speed range drive is provided on engagement of said second clutch means and on operation of said second drive establishing means to prevent rotation of said second sun gear in at least one direction, and a reverse speed range drive is provided on engagement of said third clutch means and on operation of said first drive establishing means to prevent rotation of said carrier in at least one direction.
Claim 2
Dependent Claim
346 words
In a transmission the combination of an input member; an output member; planetary gearing having a first sun gear, a second sun gear, a ring gear, a carrier carrying a first planet pinion meshing with said first sun gear, said carrier also carrying a second planet pinion meshing with said first planet pinion, said second sun gear and said ring gear, said ring gear being connected to said output member; first clutch means for selectively connecting said input member to said first sun gear; second clutch means for selectively connecting said input member to said carrier; third clutch means for selectively connecting said input member to said second sun gear; first drive establishing means for selectively preventing rotation of said carrier in only one direction and, alternatively, in any direction; second drive establishing means for selectively preventing rotation of said second sun gear in only one direction and, alternatively, in any direction; and one-way clutch means for preventing rotation of said second sun gear relative to said input member when said first clutch means is disengaged while said second clutch means is engaged whereby a first forward speed range drive is provided on engagement of said first clutch means and operation of said first drive establishing means to prevent rotation of said carrier in at least one direction, a second forward speed range drive is provided on engagement of said first clutch means and operation of said second drive establishing means to prevent rotation of said second sun gear in at least one direction, a third forward speed range drive is provided on engagement of said first clutch means and said second clutch means, a fourth forward speed range drive is provided on engagement of said second clutch means and on operation of said second drive establishing means to prevent rotation of said second sun gear in at least one direction, and a reverse speed range drive is provided on engagement of said third clutch means and on operation of said first drive establishing means to prevent rotation of said carrier in at least one direction.
Claim 3
Dependent Claim
38 words
The transmission set forth in claim 1 and said first drive establishing means comprising one-way brake means for preventing rotation of said carrier in only one direction and brake means for selectively preventing any rotation of said carrier.
Claim 4
Dependent Claim
54 words
The transmission set forth in claim 1 and said second drive establishing means comprising brake means for selectively preventing any rotation of said second sun gear and additional brake means and one-way brake means in series with said additional brake means for selectively preventing rotation of said second sun gear in only one direction.
Claim 5
Dependent Claim
84 words
The transmission set forth in claim 1 and said first drive establishing means comprising one-way brake means for preventing rotation of said carrier in only one direction and brake means for selectively preventing any rotation of said carrier; said second drive establishing means comprising brake means for selectively preventing any rotation of said second sun gear and additional brake means and one-way brake means in series with said additional brake means for selectively preventing rotation of said second sun gear in only one direction.
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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |