Patent US3335631A successfully refreshed from Google Patents.
US3335631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coupling pin
Assignee: Individual
•
Filing: 1965-11-12
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Granted: 1967-08-15
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Expires: 1985-11-12
Abstract
No abstract record available.
Inventors
- 👤 Clyde H Heeren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:25
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/01; B60D1/02; B60D1/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
220 words
A COUPLING PIN COMPRISING A SHANK HAVING AN UPPER ENLARGED HEAD AND A LOWER END, A RING FREELY SLIDABLE ON A PORTION OF SAID LOWER END WHEN THE SHANK IS SUBSTANTIALLY VERTICAL AND THE CIRCULAR PLANE OF THE RING IS SUBSTANTIALLY LEVEL, THE RING BEING FORMED FOR TILT ON THE SHANK AND LOCKING THERETO WHEN THE RING IS TILTED, SAID SHANK HAVING AN AXIAL SLOT OPENING FROM SAID LOWER END TOWARD SAID HEAD, AN ELONGATED PLATE PIVOTALLY CONNECTED IN SAID SLOT AND MOVABLE FROM A RETRACTED POSITION LONGITUDINAL TO THE SHANK TO A POSITION CROSSWISE OF THE SHANK WITH ITS END PORTIONS EXTENDING OPPOSITELY THEREFROM TO SUPPORT THE RING UNDER GRAVITY, THE LESSER DIMENSION OF SAID PLATE BEING ENTIRELY CONFINED WITHIN SAID SHANK WHEN SAID PLATE IS IN THE RETRACTED POSITION, SAID LATE BEING FORMED WITH A PAIR OF NOTCHES WHICH ARE LOCATED ON OPPOSITE SIDES OF SAID SHANK WHEN THE PLATE IS IN THE CROSSWISE POSITION TO RECEIVE PORTIONS OF THE RING, SAID NOTCHES CAUSING THE RING TO LOCKINGLY ENGAGE THE SHANK WHEN THE RING IS TILTED RELATIVE TO THE SHANK BY ANY SUBSTANTIAL UPWARD MOVEMENT OF ONE END OF THE PLATE WHEN THE PLATE IS TILTED BY ANY BLOW ON EITHER OF ITS ENDS, THE OPENING THROUGH SAID RING ACCOMMODATING AND LOCKING THE PLATE IN THE RETRACTED POSITION.
Claim 2
Dependent Claim
220 words
A COUPLING PIN COMPRISING A SHANK HAVING AN UPPER ENLARGED HEAD AND A LOWER END, A RING FREELY SLIDABLE ON A PORTION OF SAID LOWER END WHEN THE SHANK IS SUBSTANTIALLY VERTICAL AND THE CIRCULAR PLANE OF THE RING IS SUBSTANTIALLY LEVEL, THE RING BEING FORMED FOR TILT ON THE SHANK AND LOCKING THERETO WHEN THE RING IS TILTED, SAID SHANK HAVING AN AXIAL SLOT OPENING FROM SAID LOWER END TOWARD SAID HEAD, AN ELONGATED PLATE PIVOTALLY CONNECTED IN SAID SLOT AND MOVABLE FROM A RETRACTED POSITION LONGITUDINAL TO THE SHANK TO A POSITION CROSSWISE OF THE SHANK WITH ITS END PORTIONS EXTENDING OPPOSITELY THEREFROM TO SUPPORT THE RING UNDER GRAVITY, THE LESSER DIMENSION OF SAID PLATE BEING ENTIRELY CONFINED WITHIN SAID SHANK WHEN SAID PLATE IS IN THE RETRACTED POSITION, SAID LATE BEING FORMED WITH A PAIR OF NOTCHES WHICH ARE LOCATED ON OPPOSITE SIDES OF SAID SHANK WHEN THE PLATE IS IN THE CROSSWISE POSITION TO RECEIVE PORTIONS OF THE RING, SAID NOTCHES CAUSING THE RING TO LOCKINGLY ENGAGE THE SHANK WHEN THE RING IS TILTED RELATIVE TO THE SHANK BY ANY SUBSTANTIAL UPWARD MOVEMENT OF ONE END OF THE PLATE WHEN THE PLATE IS TILTED BY ANY BLOW ON EITHER OF ITS ENDS, THE OPENING THROUGH SAID RING ACCOMMODATING AND LOCKING THE PLATE IN THE RETRACTED POSITION.
References Cited (Backward Citations)
US2840398A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-14 | 1971-02-13 | 1971-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-14 | 1975-02-13 | 1975-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-14 | 1979-02-13 | 1979-08-15 | $7700.00 | Window Closed / Lapsed |