US3190084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible drive shaft assembly
Assignee: S Smith and Sons Ltd
•
Filing: 1963-02-26
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Granted: 1965-06-22
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Expires: 1983-02-26
Abstract
No abstract record available.
Inventors
- 👤 Moon Philip Roger
- 👤 Stockwell Walter Stanley
- 👤 Tilbury Richard George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:00
CPC Classifications
F; F16; F16C; F16C1/00; F16C1/26; F16C1/02; F16C1/06; F16C1/262; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/20456
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
A FLEXIBLE DRIVING SHAFT ASSEMBLY COMPRISING AN INNER DRIVING MEMBER, A TUBULAR OUTER MEMBER DISPOSED IN SURROUNDING RELATION TO SAID DRIVING MEMBER, SAID OUTER MEMBER COMPRISING AN INNER TUBULAR LAYER OF HELICALLY WOUND WIRE, ADJACENT TURNS OF SAID WIRE BEING SPACED APART AXIALLY TO FORM A HELICAL GAP, SAID OUTER MEMBER ALSO COMPRISING AN OUTER LAYER FABRICATED OF A PLASTIC MATERIAL AND HAVING PORTIONS OF ITS INNER SURFACE PROTRUDING BETWEEN THE TURNS OF SAID WIRE, AND A TUBULAR COUPLING PART SURROUNDING AND OVERLAPPING AT LEAST A PORTION OF SAID PLASTIC OUTER LAYER, SAID COUPLING PART HAVING A HELICAL PROTRUSION ON ITS INNER SURFACE, THE SPACING BETWEEN THE TURNS OF SAID HELICAL PROTRUSION BEING SUBSTANTIALLY THE SAME AS SAID HELICAL GAP, SAID COUPLING PART BEING PRESS FITTED ONTO SAID OUTER LAYER WITH SAID HELICAL PROTRUSION FORMING A KEY BETWEEN SAID COUPLING PART AND SAID OUTER LAYER.
Claim 2
Dependent Claim
145 words
A FLEXIBLE DRIVING SHAFT ASSEMBLY COMPRISING AN INNER DRIVING MEMBER, A TUBULAR OUTER MEMBER DISPOSED IN SURROUNDING RELATION TO SAID DRIVING MEMBER, SAID OUTER MEMBER COMPRISING AN INNER TUBULAR LAYER OF HELICALLY WOUND WIRE, ADJACENT TURNS OF SAID WIRE BEING SPACED APART AXIALLY TO FORM A HELICAL GAP, SAID OUTER MEMBER ALSO COMPRISING AN OUTER LAYER FABRICATED OF A PLASTIC MATERIAL AND HAVING PORTIONS OF ITS INNER SURFACE PROTRUDING BETWEEN THE TURNS OF SAID WIRE, AND A TUBULAR COUPLING PART SURROUNDING AND OVERLAPPING AT LEAST A PORTION OF SAID PLASTIC OUTER LAYER, SAID COUPLING PART HAVING A HELICAL PROTRUSION ON ITS INNER SURFACE, THE SPACING BETWEEN THE TURNS OF SAID HELICAL PROTRUSION BEING SUBSTANTIALLY THE SAME AS SAID HELICAL GAP, SAID COUPLING PART BEING PRESS FITTED ONTO SAID OUTER LAYER WITH SAID HELICAL PROTRUSION FORMING A KEY BETWEEN SAID COUPLING PART AND SAID OUTER LAYER.
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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |