Patent US3309111A successfully refreshed from Google Patents.
US3309111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semi-trailer coupling
Assignee: Individual
•
Filing: 1964-11-16
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Granted: 1967-03-14
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Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Vaugoyeau Alexandre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:08
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0807; B62D53/0835; B62D53/0885
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A SEMI-TRAILER COUPLING FOR A TRACTOR-TRAILER VEHICLE COMPRISING: (A) A CRADLE FOR MOUNTING ON A TRACTOR VEHICLE; (B) A SEATING FOR COUPLING TO THE TRAILER AND ENGAGEABLE WITH SAID CRADLE AND SLIDABLE ANGULARLY WITH RESPECT TO SAID CRADLE ABOUT A COMMON AXIS; (C) INTERENGAGING MEANS ON SAID CRADLE AND SEATING CONTROLLING LONGITUDINAL MOVEMENT THEREOF; (D) FIRST SPACED PRESSING ELEMENTS ON SAID CRADLE; AND (E) SECOND SPACED PRESSING ELEMENTS ON SAID SEATING, THE IMPROVEMENT COMPRISING: BUFFER BLOCKS OF RESILIENTLY COMPRESSIBLE MATERIAL HAVING A REDUCED CROSS SECTIONAL SHAPE ALONG THE LINE OF THRUST, DISPOSED BETWEEN SAID PRESSING ELEMENTS TO RESIST RELATIVE ANGULAR MOVEMENT OF SAID CRADLE AND SEATING, SUCH THAT UNDER INCREASING COMPRESSION SUCCESSIVELY GREATER CROSS SECTIONS COME INTO ACTION.
Claim 2
Dependent Claim
119 words
IN A SEMI-TRAILER COUPLING FOR A TRACTOR-TRAILER VEHICLE COMPRISING: (A) A CRADLE FOR MOUNTING ON A TRACTOR VEHICLE; (B) A SEATING FOR COUPLING TO THE TRAILER AND ENGAGEABLE WITH SAID CRADLE AND SLIDABLE ANGULARLY WITH RESPECT TO SAID CRADLE ABOUT A COMMON AXIS; (C) INTERENGAGING MEANS ON SAID CRADLE AND SEATING CONTROLLING LONGITUDINAL MOVEMENT THEREOF; (D) FIRST SPACED PRESSING ELEMENTS ON SAID CRADLE; AND (E) SECOND SPACED PRESSING ELEMENTS ON SAID SEATING, THE IMPROVEMENT COMPRISING: BUFFER BLOCKS OF RESILIENTLY COMPRESSIBLE MATERIAL HAVING A REDUCED CROSS SECTIONAL SHAPE ALONG THE LINE OF THRUST, DISPOSED BETWEEN SAID PRESSING ELEMENTS TO RESIST RELATIVE ANGULAR MOVEMENT OF SAID CRADLE AND SEATING, SUCH THAT UNDER INCREASING COMPRESSION SUCCESSIVELY GREATER CROSS SECTIONS COME INTO ACTION.
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) | 1970-03-13 | 1970-09-12 | 1971-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-13 | 1974-09-12 | 1975-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-13 | 1978-09-12 | 1979-03-14 | $7700.00 | Window Closed / Lapsed |