Patent US4366889A successfully refreshed from Google Patents.
US4366889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatically and manually operable gear shifter
Assignee: Individual
•
Filing: 1980-08-12
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Granted: 1983-01-04
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Expires: 2000-08-12
Abstract
Abstract A gear shift arrangement operable either in manually or automatically. In automatic operation a control brain determiners vehicle speed and operates various cylinders for automatically declutching and shifting gears.
Inventors
- 👤 Ching C. Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:10
CPC Classifications
B; B60; B60W; B60W30/00; B60W30/18; B60W10/00; B60W10/02; B60W10/10
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
174 words
An automotive vehicle gear shifting system comprising: control brain means for providing a control signal indicative of a wheel speed of said vehicle; a power source; a common valve means responsive to said control signal for controlling a flow of power from said power source; clutch cylinder means for receiving power from said common valve for declutching a clutch of said vehicle; mechanical valve means for controlling, responsive to the position of said clutch, a flow of power from said common valve; control valve means for receiving power via said mechanical valve means and distributing it in accordance with said control signal from said control brain means; shutter valve means, coupled to said control valve means, for controlling a flow of power from said control valve; driving cylinder means, coupled to said shutter valve means, for operating a gear shifter of said vehicle; switch means, actuated by said gear shifter, for controlling said clutch cylinder for engaging said clutch, and means for limiting the engine speed of said vehicle during a gear changing operation.
Claim 2
Dependent Claim
174 words
An automotive vehicle gear shifting system comprising: control brain means for providing a control signal indicative of a wheel speed of said vehicle; a power source; a common valve means responsive to said control signal for controlling a flow of power from said power source; clutch cylinder means for receiving power from said common valve for declutching a clutch of said vehicle; mechanical valve means for controlling, responsive to the position of said clutch, a flow of power from said common valve; control valve means for receiving power via said mechanical valve means and distributing it in accordance with said control signal from said control brain means; shutter valve means, coupled to said control valve means, for controlling a flow of power from said control valve; driving cylinder means, coupled to said shutter valve means, for operating a gear shifter of said vehicle; switch means, actuated by said gear shifter, for controlling said clutch cylinder for engaging said clutch, and means for limiting the engine speed of said vehicle during a gear changing operation.
Claim 3
Dependent Claim
15 words
A system according to claim 1 wherein said power source comprises a compressed air system.
Claim 4
Dependent Claim
14 words
A system according to claim 1 wherein said power source comprises a hydraulic system.
Claim 5
Dependent Claim
14 words
A system according to claim 1 wherein said power source comprises an oil pump.
Claim 6
Dependent Claim
14 words
A system according to claim 1 wherein said power source comprises a vacuum system.
Claim 7
Dependent Claim
21 words
A system according to claim 1 wherein said control brain means comprises a magnetic induction arrangement including a set of relays.
Claim 8
Dependent Claim
15 words
A system according to claim 1 wherein said control brain means comprises a centrifugal arrangement.
Claim 9
Dependent Claim
16 words
A system according to claim 7 wherein said centrifugal arrangement comprises a set of flying balls.
Claim 10
Dependent Claim
26 words
A system according to claim 1 wherein said control valve means comprises a set of control valves, one control valve for each gear to be shifted.
Claim 11
Dependent Claim
27 words
A system according to claim 9 wherein said shutter valve means comprises a set of shutter valves controlled by the distribution of power from said control valves.
Claim 12
Dependent Claim
44 words
A system according to claim 10 wherein said driving cylinder means comprises a first driving cylinder for moving said gear shifter in a first direction and a second driving cylinder for moving said gear shifter in a second direction different from said first direction.
Claim 13
Dependent Claim
14 words
A system according to claim 11 wherein said first and second directions are orthogonal.
Claim 14
Dependent Claim
25 words
A system according to claim 1 wherein said engine speed limiting means comprises means for limiting the fuel intake of a carburetor of said vehicle.
Claim 15
Dependent Claim
15 words
A system according to claim 1 wherein said driving cylinder means comprises a pneumatic cylinder.
Claim 16
Dependent Claim
15 words
A system according to claim 1 wherein said driving cylinder means comprises a hydraulic cylinder.
Claim 17
Dependent Claim
21 words
A system according to claim 1 wherein said engine speed limiting means comprises means for controlling a throttle of said vehicle.
References Cited (Backward Citations)
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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) | 1986-01-03 | 1986-07-05 | 1987-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-03 | 1990-07-05 | 1991-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-03 | 1994-07-05 | 1995-01-04 | $7700.00 | Window Closed / Lapsed |