US3628398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power transmission
Assignee: Individual
•
Filing: 1967-08-22
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Granted: 1971-12-21
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Expires: 1987-08-22
Abstract
Abstract This invention relates to transmissions and, more particularly, to the traction-type (rolling elements) infinitely variable transmission.
Inventors
- 👤 Walter V Chery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:10
CPC Classifications
F; F16; F16H; F16H15/00; F16H15/48; F16H15/50; F16H15/52; F16H47/00; F16H47/06; F16H47/08; F16H47/085
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
276 words
In combination, a torque converter, a first planetary transmission, and a second planetary transmission, said first planetary transmission, and second planetary transmission and said torque converter each having a first member, a second member, and a third member, an input member connected to said second member of said first planetary transmission, said third member of said torque converter being connected to said third member of said first planetary transmission, said first member of said torque converter being connected to said third member of said second planetary transmission, said second member of said torque converter being connected to said first member of said first planetary transmission and to said first member of said second planetary transmission, output means connected to said second member of said second planetary transmission, restraining means connected to said first member of said first planetary transmission and to said first member of said second planetary transmission, said first member of said second planetary transmission comprising two spaced ring member, said third member of said second planetary transmission comprising two spaced sun wheel members, generally spherical members disposed between said ring members and said sun members engaging said ring members and said sun members, and means urging said spherical members into engagement with said ring members and said sun wheel members, and cam members urging said ring members toward each other and toward the generally spherical members in proportion to the torsional force between said ring members and said sun members, said ring members and said sun members having surfaces engaged by said spherical members contoured in such a manner that a speed reduction is accomplished between said sun wheels and said ring members.
Claim 2
Dependent Claim
276 words
In combination, a torque converter, a first planetary transmission, and a second planetary transmission, said first planetary transmission, and second planetary transmission and said torque converter each having a first member, a second member, and a third member, an input member connected to said second member of said first planetary transmission, said third member of said torque converter being connected to said third member of said first planetary transmission, said first member of said torque converter being connected to said third member of said second planetary transmission, said second member of said torque converter being connected to said first member of said first planetary transmission and to said first member of said second planetary transmission, output means connected to said second member of said second planetary transmission, restraining means connected to said first member of said first planetary transmission and to said first member of said second planetary transmission, said first member of said second planetary transmission comprising two spaced ring member, said third member of said second planetary transmission comprising two spaced sun wheel members, generally spherical members disposed between said ring members and said sun members engaging said ring members and said sun members, and means urging said spherical members into engagement with said ring members and said sun wheel members, and cam members urging said ring members toward each other and toward the generally spherical members in proportion to the torsional force between said ring members and said sun members, said ring members and said sun members having surfaces engaged by said spherical members contoured in such a manner that a speed reduction is accomplished between said sun wheels and said ring members.
Claim 3
Dependent Claim
38 words
The combination recited in claim 1 wherein resilient means is provided on said second transmission urging said sun members toward each other and urging said ring members toward each other and into frictional engagement with said spherical members.
Claim 4
Dependent Claim
34 words
The combination recited in claim 1 wherein said first element, said second element, and said third element of said first planetary transmission comprises a ring element, a planetary member, and a sun element respectively.
Claim 5
Dependent Claim
40 words
The combination recited in claim 1 wherein said spherical planetary members engage a curved surface on said rinG members and curved surface on said sun members, both having a radius of curvature greater than the radius of said spherical members.
Claim 6
Dependent Claim
19 words
The combination recited in claim 1 wherein said ring elements of said transmission are connected together to rotate together.
Claim 7
Dependent Claim
13 words
The combination recited in claim 2 wherein said resilient means comprises Belleville springs.
References Cited (Backward Citations)
US1526493A
Cited
US2359540A
Cited
US3099171A
Cited
US3152490A
Cited
US3203278A
Cited
US3299743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |