Patent US3871535A successfully refreshed from Google Patents.
US3871535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle hitch
Assignee: Individual
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Filing: 1974-01-02
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Granted: 1975-03-18
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Expires: 1994-01-02
Abstract
Abstract A vehicle hitch adapted to be mounted on the rear of a towing vehicle and having a swivelly mounted boom extanding rearwardly thereof, freely swingable both vertically and horizontally; said boom having coupling means at the free end thereof capable of engaging and locking to a vehicle to be towed and lifting the engaged end of said vehicle off the ground even tho the two vehicles were not aligned at the start of the coupling operation.
Inventors
- 👤 Joseph G Fenske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:52
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/14; B60D1/143; B60D1/01; B60D1/06; B60D1/24; B60D1/36; B60D1/40; B60D1/42; B60D1/46; B60D1/465; B60P; B60P3/00; B60P3/12; B60P3/125
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
280 words
A vehicle hitch for connecting a towing vehicle to a vehicle to be towed, comprising in combination: a. a stationary hollow beam mounted on the rear frame of the towing vehicle, extending rearwardly therefrom in a horizontal plane; b. a boom swivelly mounted on the underside of the beam for free swinging movement in both vertical and horizontal planes; c. said boom comprising two telescopically interfitted inner and outer sections; d. the outer section having a ball adapted to be engaged by a tow cap mounted on the vehicle to be towed; e. the telescopic boom being of a length such that the ball will be positioned immediately beyond the free end of the beam when the boom is in its fully retracted condition; f. a cable secured at one end to the beam and at its other end to the boom, proximate the ball; said boom end, supported by the cable, being free to swing in both vertical and horizontal planes relative to the beam; g. means for increasing the effective length of the cable to permit the boom to be lowered, lengthened and swung in both vertical and horizontal arcs, to allow the boom ball to engage the ball cap on the vehicle to be towed when the towing and towed vehicles are misaligned immediately prior to their joinder; and h. means for shortening the effective length of the cable to raise and shorten the overall length of the boom and move it into alignment with the beam, against the underside thereof, thereby lifting the rear wheels of the vehicle to be towed off the ground, with the rear axle thereof in exact alignment with the towing vehicle.
Claim 2
Dependent Claim
280 words
A vehicle hitch for connecting a towing vehicle to a vehicle to be towed, comprising in combination: a. a stationary hollow beam mounted on the rear frame of the towing vehicle, extending rearwardly therefrom in a horizontal plane; b. a boom swivelly mounted on the underside of the beam for free swinging movement in both vertical and horizontal planes; c. said boom comprising two telescopically interfitted inner and outer sections; d. the outer section having a ball adapted to be engaged by a tow cap mounted on the vehicle to be towed; e. the telescopic boom being of a length such that the ball will be positioned immediately beyond the free end of the beam when the boom is in its fully retracted condition; f. a cable secured at one end to the beam and at its other end to the boom, proximate the ball; said boom end, supported by the cable, being free to swing in both vertical and horizontal planes relative to the beam; g. means for increasing the effective length of the cable to permit the boom to be lowered, lengthened and swung in both vertical and horizontal arcs, to allow the boom ball to engage the ball cap on the vehicle to be towed when the towing and towed vehicles are misaligned immediately prior to their joinder; and h. means for shortening the effective length of the cable to raise and shorten the overall length of the boom and move it into alignment with the beam, against the underside thereof, thereby lifting the rear wheels of the vehicle to be towed off the ground, with the rear axle thereof in exact alignment with the towing vehicle.
Claim 3
Dependent Claim
153 words
A vehicle hitch, as in claim 1, wherein the cable adjusting means comprises an elongated toothed rack slidably mounted within the beam; means for advancing and retracting the rack; said rack having a pulley at one end thereof, around which the cable travels between its ends anchored on the beam and boom; said pulley acting to pull the cable the length of the beam when the rack is in a first, retracted position, thereby causing the cable to draw and hold the boom in its fully retracted condition, in Alignment with and proximate the underside of the beam; said pulley acting to allow the cable to be paid out of the hollow beam when the rack is in its advanced position, to permit the boom to be lengthened, lowered, and freely swiveled in both horizontal and vertical planes, to enable the ball to engage the ball cap of the vehicle to be towed.
References Cited (Backward Citations)
US1512429A
Cited
US3690482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |