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Patent US3806162A successfully refreshed from Google Patents.
US3806162A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Towing bar
Assignee: Individual
•
Filing: 1972-10-12
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Granted: 1974-04-23
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Expires: 1992-10-12
Abstract
Abstract A towing bar comprising first and second brackets detachably secured to the bumper of the towed vehicle. Each of the brackets has a shaft mounted thereon which is rotatable about a vertical axis. A tow bar member is pivotally secured about a horizonal axis to each of the shafts and extends forwardly and inwardly therefrom. A chain and chain tightening means is provided on each of the brackets for connection to the towed vehicle frame so that a large portion of the forces imposed on the bracket will be transmitted to the frame rather than the bumper. A pivotal linkage means is provided at the forward ends of the tow bar members to permit the tow bar members to be selectively pivoted with respect to each other. Means is also provided on the linkage means for selectively preventing the relative pivotal movement between the tow bar members. A coupling means is secured to the linkage means for detachable connection to the towing vehicle.
Inventors
- 👤 W Milner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:39
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/48; B60D1/56
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
83 words
A towing bar for permitting a towing vehicle to tow a towed vehicle, comprising, first and second spaced apart brackets detachably secured to the front bumper of the towed vehicle, first and second tow bar members pivotally secured to said first and second brackets and extending forwardly and inwardly therefrom, a coupling means connected to the forward end of said tow bar members for connection to the towing vehicle, means on said brackets to transmit the towing forces to the towed vehicle frame.
Claim 2
Dependent Claim
83 words
A towing bar for permitting a towing vehicle to tow a towed vehicle, comprising, first and second spaced apart brackets detachably secured to the front bumper of the towed vehicle, first and second tow bar members pivotally secured to said first and second brackets and extending forwardly and inwardly therefrom, a coupling means connected to the forward end of said tow bar members for connection to the towing vehicle, means on said brackets to transmit the towing forces to the towed vehicle frame.
Claim 3
Dependent Claim
68 words
The towing bar of claim 1 wherein said means on said brackets comprises a chain member operatively secured to each of said brackets which is detachably secured to the frame of the towed vehicle, and a chain tightening means mounted on each of said brackets for increasing the tension in said chain member so that said chain member provides a rigid connection between said bracket and the frame.
Claim 4
Dependent Claim
29 words
The towing bar of claim 2 wherein each of said chain elements also extends frowardly towards the towing vehicle for connection therewith to serve as a safety chain means.
Claim 5
Dependent Claim
56 words
The towing bar of claim 2 wherein said coupling means comprises a forwardly extending bar means having a socket coupler at its forward end, the forward ends of said tow bar members being pivotally secured to said bar means, and means for selectively limiting the pivotal movement between said tow bar members and said bar means.
Claim 6
Dependent Claim
86 words
The towing bar of claim 4 wherein said means for selectively limiting said pivotal movement comprises a first link member pivotally secured at one end to said first tow bar member and pivotally secured at its other end to said bar means, a second link member pivotally secured at one end to said second tow bar member and pivotally secured at its other end to said bar means, and means for drawing said other ends of said link members into frictional engagement with said bar means.
Claim 7
Dependent Claim
41 words
The towing bar of claim 5 wherein said bar means has a longitudinally extending slot formed therein, a bolt means extending through said other end of said first link member, said slot and said other end of said second link member.
Claim 8
Dependent Claim
32 words
The towing bar of clAim 6 wherein a handle-nut means is threadably secured to said bolt means for drawing said link members and said bar means into frictional engagement with each other.
Claim 9
Dependent Claim
21 words
The towing bar of claim 2 wherein said brackets are secured to said tow bar members by a universal joint means.
Claim 10
Dependent Claim
57 words
The towing bar of claim 8 wherein said means on said brackets comprises a vertically disposed shaft operatively rotatably secured to each of said brackets, each of said tow bar members being pivotally secured about a horizontal axis to said vertically disposed shafts to provide a universal joint connection between said tow bar members and said brackets.
References Cited (Backward Citations)
US2139970A
Cited
US3119631A
Cited
US3072419A
Cited
US3083040A
Cited
US3472529A
Cited
US3649049A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |