US3178906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible shaft coupling
Assignee: Individual
•
Filing: 1962-08-10
•
Granted: 1965-04-20
•
Expires: 1982-08-10
Abstract
No abstract record available.
Inventors
- 👤 Lawrence M Ricketts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:08
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/50; F16D3/72; F16D3/74; F16D2003/745; Y; Y10; Y10S; Y10S464/00; Y10S464/902; Y10S464/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A FLEXIBLE COUPLING FOR TRANSMITTING TORQUE BETWEEN TWO SHAFTS IN END-TO-END RELATION COMPRISING HUB MEMBERS MOUNTED ON THE RESPECTIVE ENDS OF THE SHAFTS, EACH OF SAID HUB MEMBERS HAVING A RADIALLY DISPOSED FLANGE FROM WHICH PROJECTS A SHOULDER SUBSTANTIALLY AXIALLY ALIGNED ON THE TWO HUB MEMBERS, A PLURALITY OF PROTRUSIONS ON THE SAME SIDE OF THE FLANGES AS THE RESPECTIVE SHOULDERS, A HOLLOW ANNULAR TORSION MEMBER OF RESILIENT MATERIAL HAVING AN OPEN INNER PERIPHERY WITH THE INNER ENDS OF THE SIDE WALLS RESTING ON SAID SHOULDERS AND ONE FACE OF EACH SIDE WALL ENGAGING THE PROTRUSIONS ON THE RESPECTIVE FLANGES, A PAIR OF SUBSTANTIALLY SEMICIRCULAR CLAMPING MEMBERS ENGAGING THE OTHER FACE OF EACH SIDE WALL OF THE TORSION MEMBER WITH ADJACENT ENDS OF EACH PAIR OF CLAMPING MEMBERS SPACED CIRCUMFERENTIALLY FROM ONE ANOTHER, AND BOLT MEANS COMPRISING THE SIDE WALL BETWEN SAID CLAMPING MEMBER AND SAID FLANGES AND THE
Claim 2
Dependent Claim
149 words
A FLEXIBLE COUPLING FOR TRANSMITTING TORQUE BETWEEN TWO SHAFTS IN END-TO-END RELATION COMPRISING HUB MEMBERS MOUNTED ON THE RESPECTIVE ENDS OF THE SHAFTS, EACH OF SAID HUB MEMBERS HAVING A RADIALLY DISPOSED FLANGE FROM WHICH PROJECTS A SHOULDER SUBSTANTIALLY AXIALLY ALIGNED ON THE TWO HUB MEMBERS, A PLURALITY OF PROTRUSIONS ON THE SAME SIDE OF THE FLANGES AS THE RESPECTIVE SHOULDERS, A HOLLOW ANNULAR TORSION MEMBER OF RESILIENT MATERIAL HAVING AN OPEN INNER PERIPHERY WITH THE INNER ENDS OF THE SIDE WALLS RESTING ON SAID SHOULDERS AND ONE FACE OF EACH SIDE WALL ENGAGING THE PROTRUSIONS ON THE RESPECTIVE FLANGES, A PAIR OF SUBSTANTIALLY SEMICIRCULAR CLAMPING MEMBERS ENGAGING THE OTHER FACE OF EACH SIDE WALL OF THE TORSION MEMBER WITH ADJACENT ENDS OF EACH PAIR OF CLAMPING MEMBERS SPACED CIRCUMFERENTIALLY FROM ONE ANOTHER, AND BOLT MEANS COMPRISING THE SIDE WALL BETWEN SAID CLAMPING MEMBER AND SAID FLANGES AND THE
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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) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |