Patent US3082020A successfully refreshed from Google Patents.
US3082020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Kingpin construction
Assignee: Fruehauf Trailer Corp
•
Filing: 1961-11-24
•
Granted: 1963-03-19
•
Expires: 1981-11-24
Abstract
No abstract record available.
Inventors
- 👤 Adrian F Hulverson
- 👤 John W Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:16
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0842; B62D53/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
195 words
A FOLDING KINGPIN FOR A WHEELED VEHICLE COMPRISING A RIGID BOX-LIKE HOUSING HAVING SPACED PARALLEL SIDE WALLS THEREIN, A KINGPIN SUPPORT SHAFT EXTENDING BETWEEN SAID WALLS, A KINGPIN ROTATABLY SUPPORTED BY SAID SHAFT FOR ROTATION BETWEEN A DOWNWARDLY DEPENDING OPERATIVE CONDITION AND A GENERALLY HORIZONTAL INOPERATIVE CONDITION, A LOCKING BAR SUPPORT SHAFT EXTENDING BETWEEN THE WALLS OF SAID HOUSING IN SPACED GENERALLY PARALLEL RELATION TO SAID KINGPIN SUPPORT SHAFT, A LOCKING BAR ROTATABLY SUPPORTED ON SAID LOCKING BAR SHAFT FOR ROTATION BETWEEN A LOCKED CONDITION AND AN OPEN CONDITION, SAID LOCKING BAR EXTENDING GENERALLY NORMALLY TO AND ENGAGEABLE WITH SAID KINGPIN WHEN SAID KINGPIN AND LOCKING BAR ARE IN THE OPERATIVE AND LOCKED CONDITION, RESPECTIVELY, SAID LOCKING BAR EXTENDING GENERALLY PARALLEL TO AND UNDERLYING SAID KINGPIN WHEN SAID KINGPIN AND LOCKING BAR ARE IN THE INOPERATIVE AND LOCKED CONDITION, RESPECTIVELY, MEANS EXTENDING TO THE OUTER PERIPHERY OF SAID VEHICLE FOR ROTATING SAID LOCKING BAR BETWEEN THE LOCKED AND UNLOCKED CONDITIONS, MEANS EXTENDING TO THE OUTER PERIPHERY OF SAID VEHICLE FOR ROTATING SAID KINGPIN BETWEEN THE OPERATIVE AND INOPERATIVE CONDITIONS, AND MEANS FOR LOCKING SAID LOCKING BAR ROTATING MEANS AND LOCKING BAR IN THE LOCKED CONDITION.
Claim 2
Dependent Claim
195 words
A FOLDING KINGPIN FOR A WHEELED VEHICLE COMPRISING A RIGID BOX-LIKE HOUSING HAVING SPACED PARALLEL SIDE WALLS THEREIN, A KINGPIN SUPPORT SHAFT EXTENDING BETWEEN SAID WALLS, A KINGPIN ROTATABLY SUPPORTED BY SAID SHAFT FOR ROTATION BETWEEN A DOWNWARDLY DEPENDING OPERATIVE CONDITION AND A GENERALLY HORIZONTAL INOPERATIVE CONDITION, A LOCKING BAR SUPPORT SHAFT EXTENDING BETWEEN THE WALLS OF SAID HOUSING IN SPACED GENERALLY PARALLEL RELATION TO SAID KINGPIN SUPPORT SHAFT, A LOCKING BAR ROTATABLY SUPPORTED ON SAID LOCKING BAR SHAFT FOR ROTATION BETWEEN A LOCKED CONDITION AND AN OPEN CONDITION, SAID LOCKING BAR EXTENDING GENERALLY NORMALLY TO AND ENGAGEABLE WITH SAID KINGPIN WHEN SAID KINGPIN AND LOCKING BAR ARE IN THE OPERATIVE AND LOCKED CONDITION, RESPECTIVELY, SAID LOCKING BAR EXTENDING GENERALLY PARALLEL TO AND UNDERLYING SAID KINGPIN WHEN SAID KINGPIN AND LOCKING BAR ARE IN THE INOPERATIVE AND LOCKED CONDITION, RESPECTIVELY, MEANS EXTENDING TO THE OUTER PERIPHERY OF SAID VEHICLE FOR ROTATING SAID LOCKING BAR BETWEEN THE LOCKED AND UNLOCKED CONDITIONS, MEANS EXTENDING TO THE OUTER PERIPHERY OF SAID VEHICLE FOR ROTATING SAID KINGPIN BETWEEN THE OPERATIVE AND INOPERATIVE CONDITIONS, AND MEANS FOR LOCKING SAID LOCKING BAR ROTATING MEANS AND LOCKING BAR IN THE LOCKED CONDITION.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |