US4334440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic transmission
Assignee: Individual
•
Filing: 1980-03-10
•
Granted: 1982-06-15
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Expires: 2000-03-10
Abstract
Abstract A continuously varying transmission employs gears only, and includes three gear sets A, B and C, each including first, second and third gears; the first gears of the A and C sets are interconnected to rotate together, and the first gear of the B set is connected to the third gear of the C set to rotate as a unit; and the second gear (or gears) of the A set is connected by carrier structure to the third gear of the B set to rotate as a unit and to allow rotation of the second gear (or gears) relative to the third gear of the B set.
Inventors
- 👤 Hugo Fonck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:20
CPC Classifications
F; F16; F16H; F16H3/00; F16H3/44; F16H3/74; Y; Y10; Y10S; Y10S475/00; Y10S475/904
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
180 words
In a continuously varying automatic transmission, the combination comprising (a) first, second and third gear sets spaced apart coaxially in that sequence, each including sun, planet and ring gears, (b) the sun gears of the first and third gear sets being interconnected to rotate together, and the sun gear of the second set connected to the ring gear of the third set to rotate as a unit, (c) and the planet gear or gears of the first set directly connected by planet gear carrier structure to the ring gear of the second set to rotate bodily therewith as a unit, said planet gear or gears of the first set being carried only by said carrier structure to allow rotation of said first set planet gear or gears relative to said carrier structure and relative to the ring gear of the second set, about an axis or axes defined by said planet gear or gears, the planet gear or gears of the second set at all times held by holding structure against rotation about an axis defined by said second gear.
Claim 2
Dependent Claim
180 words
In a continuously varying automatic transmission, the combination comprising (a) first, second and third gear sets spaced apart coaxially in that sequence, each including sun, planet and ring gears, (b) the sun gears of the first and third gear sets being interconnected to rotate together, and the sun gear of the second set connected to the ring gear of the third set to rotate as a unit, (c) and the planet gear or gears of the first set directly connected by planet gear carrier structure to the ring gear of the second set to rotate bodily therewith as a unit, said planet gear or gears of the first set being carried only by said carrier structure to allow rotation of said first set planet gear or gears relative to said carrier structure and relative to the ring gear of the second set, about an axis or axes defined by said planet gear or gears, the planet gear or gears of the second set at all times held by holding structure against rotation about an axis defined by said second gear.
Claim 3
Dependent Claim
38 words
The combination of claim 1 including means holding the planet gear or gears of the second set against rotation about the sun gear of the second set but allowing said planet gear or gears to rotate in position.
Claim 4
Dependent Claim
33 words
The combination of claim 1 including primary rotary means connected to the ring gear of the first set, and secondary rotary means connected to the planet gear or gears of the third set.
Claim 5
Dependent Claim
31 words
The combination of claim 1 including drive means directly interconnecting the sun gears of the first and third sets, said drive means extending through the sun gear of the second set.
Claim 6
Dependent Claim
11 words
The combination of claim 1 wherein all three sets are coaxial.
Claim 7
Dependent Claim
52 words
The combination of claim 3 wherein said secondary rotary means comprises a carrier mounting the planet gear or gears of the third set for rotation as a unit about an axis defined by the sun gear of the third set, and for rotation relative to the carrier, the carrier transmitting output rotation.
Claim 8
Dependent Claim
216 words
In a continuously varying automatic transmission, the combination comprising (a) A, B and C gear sets spaced apart coaxially in that sequence, each including interconnected first, second and third gears, (b) the first gears of the A and C gear sets being interconnected to rotate together, and the first gear of the B set connected to the third gear of the C set to rotate as a unit, (c) and the second gear or gears of the A set directly connected by second gear carrier structure to the third gear of the B set to rotate bodily therewith, as a unit, said second gear or gears of the A set being carried only by said carrier structure to allow rotation of said A set second gear or gears relative to said carrier structure and relative to the third gear of the B set about an axis or axes defined by said A set second gear or gears, the B set second gear or gears at all times being held by holding structure against rotation about an axis defined by the A and C set first gears, (d) and including primary rotary means connected to the third gear of the A set, and free of direct connection to the second gear or gears of the A set.
Claim 9
Dependent Claim
216 words
In a continuously varying automatic transmission, the combination comprising (a) A, B and C gear sets spaced apart coaxially in that sequence, each including interconnected first, second and third gears, (b) the first gears of the A and C gear sets being interconnected to rotate together, and the first gear of the B set connected to the third gear of the C set to rotate as a unit, (c) and the second gear or gears of the A set directly connected by second gear carrier structure to the third gear of the B set to rotate bodily therewith, as a unit, said second gear or gears of the A set being carried only by said carrier structure to allow rotation of said A set second gear or gears relative to said carrier structure and relative to the third gear of the B set about an axis or axes defined by said A set second gear or gears, the B set second gear or gears at all times being held by holding structure against rotation about an axis defined by the A and C set first gears, (d) and including primary rotary means connected to the third gear of the A set, and free of direct connection to the second gear or gears of the A set.
Claim 10
Dependent Claim
38 words
The combination of claim 7 including means holding the second gear or gears of the B set against rotation about the first gear of the B set but allowing said second gear or gears to rotate in position.
Claim 11
Dependent Claim
20 words
The combination of claim 7 including secondary rotary means connected to the second gear or gears of the C set.
Claim 12
Dependent Claim
31 words
The combination of claim 7 including drive means directly interconnected the first gears of the A and C sets, said drive means extending through the first gear of the B set.
References Cited (Backward Citations)
US2003108A
Cited
US1953252A
Cited
US2101233A
Cited
US2174835A
Cited
US2234384A
Cited
US2719441A
Cited
DE962031C
Cited
DE2350651A1
Cited
US3899941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-06-14 | 1985-12-14 | 1986-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-06-14 | 1989-12-14 | 1990-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-06-14 | 1993-12-14 | 1994-06-15 | $7700.00 | Window Closed / Lapsed |