US3306077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Universal joints
Assignee: Individual
•
Filing: 1965-02-19
•
Granted: 1967-02-28
•
Expires: 1985-02-19
Abstract
No abstract record available.
Inventors
- 👤 Piatti Sanzio Pio Vincenzo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:05
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/16; F16D3/26; F16D3/30; F16D3/32; Y; Y10; Y10S; Y10S464/00; Y10S464/904; Y10S464/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
IN A UNIVERSAL JOINT OF THE DOUBLE CARDAN TYPE WHEREIN A FIRST CARDAN JOINT COUPLES AN INPUT MEMBER TO A CENTRAL COUPLING ELEMENT AND THE SECOND CARDAN JOINT COUPLES AN OUTPUT MEMBER TO SAID CENTRAL COUPLING ELEMENT, AND WHEREIN AT LEAST ONE OF THE CARDAN JOINTS INCLUDES A CROSS MEMBER COUPLING THE ASSOCIATED ONE OF SAID INPUT AND OUTPUT MEMBERS TO THE CENTRAL COUPLING ELEMENT, SAID CROSS HAVING AN OPENING IN THE CENTRE THEREOF AND TWO PAIRS OF TRUNNIONS PERPENDICULAR TO ONE ANOTHER AND PIVOTED RESPECTIVELY TO A FORK AT THE ADJACENT END OF SAID ASSOCIATED MEMBER AND SAID CENTRAL COUPLING ELEMENT, AND SAID INPUT AND OUTPUT MEMBERS ARE ALSO COUPLED TOGETHER BY A BALL AND SOCKET JOINT BETWEEN THE ENDS OF AXIAL EXTENSIONS FROM THE ADJACENT ENDS OF THE INPUT AND OUTPUT MEMBERS, THE IMPROVEMENT CONSISTING IN THAT THE AXIAL EXTENSION DISPOSED WITHIN SAID FORK IS SUPPORTED, INTERMEDIATE ITS ENDS, IN SAID OPENING IN SAID CROSS BY MEANS WHICH ALLOWS THE CROSS TO ROCK RELATIVE TO SAID EXTENSION ABOUT THE AXIS OF THE TRUNNIONS WHICH ARE PIVOTED TO SAID FORK.
Claim 2
Dependent Claim
181 words
IN A UNIVERSAL JOINT OF THE DOUBLE CARDAN TYPE WHEREIN A FIRST CARDAN JOINT COUPLES AN INPUT MEMBER TO A CENTRAL COUPLING ELEMENT AND THE SECOND CARDAN JOINT COUPLES AN OUTPUT MEMBER TO SAID CENTRAL COUPLING ELEMENT, AND WHEREIN AT LEAST ONE OF THE CARDAN JOINTS INCLUDES A CROSS MEMBER COUPLING THE ASSOCIATED ONE OF SAID INPUT AND OUTPUT MEMBERS TO THE CENTRAL COUPLING ELEMENT, SAID CROSS HAVING AN OPENING IN THE CENTRE THEREOF AND TWO PAIRS OF TRUNNIONS PERPENDICULAR TO ONE ANOTHER AND PIVOTED RESPECTIVELY TO A FORK AT THE ADJACENT END OF SAID ASSOCIATED MEMBER AND SAID CENTRAL COUPLING ELEMENT, AND SAID INPUT AND OUTPUT MEMBERS ARE ALSO COUPLED TOGETHER BY A BALL AND SOCKET JOINT BETWEEN THE ENDS OF AXIAL EXTENSIONS FROM THE ADJACENT ENDS OF THE INPUT AND OUTPUT MEMBERS, THE IMPROVEMENT CONSISTING IN THAT THE AXIAL EXTENSION DISPOSED WITHIN SAID FORK IS SUPPORTED, INTERMEDIATE ITS ENDS, IN SAID OPENING IN SAID CROSS BY MEANS WHICH ALLOWS THE CROSS TO ROCK RELATIVE TO SAID EXTENSION ABOUT THE AXIS OF THE TRUNNIONS WHICH ARE PIVOTED TO SAID FORK.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |