US3072419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tow bar assembly
Assignee: Individual
•
Filing: 1961-05-31
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Granted: 1963-01-08
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Expires: 1981-05-31
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Safford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:55
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/48; B60D1/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
A TOW BAR ASSEMBLY COMPRISING: (A) A COUPLING OF THE BALL SOCKET TYPE; (B) AT LEAST TWO TOW BARS EXTENDING DIVERGINGLY FROM SAID COUPLING AND HAVING AT THEIR ENDS OPPOSITE SAID COUPLING VERTICALLY POSITIONED BUMBER ENGAGING END PLATES; (C) CHAIN MEANS AFFIXED TO THE BOTTOM OF EACH OF SAID TOW BARS, EXTENDING SUBSTANTIALLY BEYOND SAID TOW BARS AND HAVING AT THEIR ENDS CLASPING MEANS ATTACHED TO A TOWED VEHICLE FRAME, SAID CHAINS BEING ANGLED DOWNWARDLY AND REARWARDLY OF THE TOW BAR AND PASSING BENEATH THE POINT OF CONTACT OF THE TOW BAR WITH THE VEHICLE BUMBER; AND (D) LONGITUDINAL THREADED BOLT TENSIONING MEANS EXTENDING THROUGH EACH OF SAID TOW BARS AND ANGLED DOWNWARDLY AND REARWARDLY PARALLEL WITH EACH OF SAID CHAINS, SAID BOLT TENSIONING MEANS ENGAGING SAID CHAIN INTERMEDIATE THE PORTION AFFIXED TO THE TOW BAR AND THE VEHICLE ATTACHED END, AND WHEN ACTUATED AWAY FROM SAID VEHICLE ATTACHED END, MAINTAINING SAID CHAIN IN CONTINOUS TENSION TO CLAMP SAID END PLATE AGAINST SAID BUMPER AND TO IMPART A CONTINUOUS DOWNWARD THRUST TO THE COUPLING END OF SAID TOW BAR.
Claim 2
Dependent Claim
179 words
A TOW BAR ASSEMBLY COMPRISING: (A) A COUPLING OF THE BALL SOCKET TYPE; (B) AT LEAST TWO TOW BARS EXTENDING DIVERGINGLY FROM SAID COUPLING AND HAVING AT THEIR ENDS OPPOSITE SAID COUPLING VERTICALLY POSITIONED BUMBER ENGAGING END PLATES; (C) CHAIN MEANS AFFIXED TO THE BOTTOM OF EACH OF SAID TOW BARS, EXTENDING SUBSTANTIALLY BEYOND SAID TOW BARS AND HAVING AT THEIR ENDS CLASPING MEANS ATTACHED TO A TOWED VEHICLE FRAME, SAID CHAINS BEING ANGLED DOWNWARDLY AND REARWARDLY OF THE TOW BAR AND PASSING BENEATH THE POINT OF CONTACT OF THE TOW BAR WITH THE VEHICLE BUMBER; AND (D) LONGITUDINAL THREADED BOLT TENSIONING MEANS EXTENDING THROUGH EACH OF SAID TOW BARS AND ANGLED DOWNWARDLY AND REARWARDLY PARALLEL WITH EACH OF SAID CHAINS, SAID BOLT TENSIONING MEANS ENGAGING SAID CHAIN INTERMEDIATE THE PORTION AFFIXED TO THE TOW BAR AND THE VEHICLE ATTACHED END, AND WHEN ACTUATED AWAY FROM SAID VEHICLE ATTACHED END, MAINTAINING SAID CHAIN IN CONTINOUS TENSION TO CLAMP SAID END PLATE AGAINST SAID BUMPER AND TO IMPART A CONTINUOUS DOWNWARD THRUST TO THE COUPLING END OF SAID TOW BAR.
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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |