Patent US3761113A successfully refreshed from Google Patents.
US3761113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self aligning and adjustable wagon tongue
Assignee: Lee Raymond Organization Inc
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Filing: 1971-08-05
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Granted: 1973-09-25
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Expires: 1991-08-05
Abstract
Abstract A hollow pipe is secured at one end to a wagon, and a trailer drawbar is secured to the base of a cone shaped member. A cable secured at one end to the apex of the cone member and at the other end to a movable means on the pipe is disposed intermediate its ends over rollers. Lever means tightens or loosens the cable to secure or release the member in the pipe.
Inventors
- 👤 J Smitherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 03:39
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/24; B60D1/36; B60D1/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
186 words
In combination: a hollow pipe open at both ends, one end being securable to a wagon or the like; a cone shaped member fitting into the other end of the pipe, and having an enlarged base which forms a stop preventing the base from entering the pipe, the apex of the member fitting loosely in the other pipe end, said base being securable to the draw bar of a trailer or the like; and manually operable means including a cable secured to said apex and extending in said pipe to pull said member into locking engagement with the other end of the pipe or to release said member therefrom; wherein said cable is secured at one end to the apex and at the other end to said means outside the pipe; wherein said cable intermediate its ends passes over a roller and around a pulley in said pipe; wherein said combination is a self aligning and adjustable wagon tongue, and said means includes a lever pivotable about a point on the outside of the pipe, the other end of said cable being secured to said lever.
Claim 2
Dependent Claim
186 words
In combination: a hollow pipe open at both ends, one end being securable to a wagon or the like; a cone shaped member fitting into the other end of the pipe, and having an enlarged base which forms a stop preventing the base from entering the pipe, the apex of the member fitting loosely in the other pipe end, said base being securable to the draw bar of a trailer or the like; and manually operable means including a cable secured to said apex and extending in said pipe to pull said member into locking engagement with the other end of the pipe or to release said member therefrom; wherein said cable is secured at one end to the apex and at the other end to said means outside the pipe; wherein said cable intermediate its ends passes over a roller and around a pulley in said pipe; wherein said combination is a self aligning and adjustable wagon tongue, and said means includes a lever pivotable about a point on the outside of the pipe, the other end of said cable being secured to said lever.
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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |