US4537416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer hitch alignment device
Assignee: LINABURG CLYDE P
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Filing: 1984-02-15
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Granted: 1985-08-27
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Expires: 2004-02-15
Abstract
Abstract A trailer hitch alignment device comprising an upwardly directed generally arcuate cradle with a vertically elongated tubular socket pivotally mounted therein. The socket receives the lower end of a trailer jack shaft. A locking pin selectively locks the socket to the cradle to preclude relative movement therebetween. Removal of the lock pin allows a rocking of the cradle and a corresponding shifting of the jack shaft and associated trailer. The cradle includes multiple upwardly directed handle receiving pockets.
Inventors
- 👤 Clyde P. Linaburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:36
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/58; B60D1/66; B60D1/24; B60D1/42; B60S; B60S9/00; B60S9/14; B60S9/16; B60S9/18
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
92 words
A trailer hitch alignment device including a generally arcuate, upwardly opening cradle defined by a pair of spaced side supports interconnected by a generally arcuate base, a jack socket pivotally mounted between said side supports within said cradle, said socket opening upwardly of said cradle and being dimensioned to receive the lower end of a conventional trailer jack shaft, and handle mounting means on said cradle for mounting one end of an elongated handle for a rocking manipulation of said cradle and a corresponding lateral movement of the pivotally mounted jack socket.
Claim 2
Dependent Claim
92 words
A trailer hitch alignment device including a generally arcuate, upwardly opening cradle defined by a pair of spaced side supports interconnected by a generally arcuate base, a jack socket pivotally mounted between said side supports within said cradle, said socket opening upwardly of said cradle and being dimensioned to receive the lower end of a conventional trailer jack shaft, and handle mounting means on said cradle for mounting one end of an elongated handle for a rocking manipulation of said cradle and a corresponding lateral movement of the pivotally mounted jack socket.
Claim 3
Dependent Claim
43 words
The alignment device of claim 1 wherein the pivotal mounting of the jack socket utilizes an elongated pivot rod extending transversely through the side supports and the jack socket therebetween, the opposed ends of said pivot rod being supported by said side supports.
Claim 4
Dependent Claim
66 words
The alignment device of claim 2 including locking means selectively locking said jack socket against pivotal movement with respect to said cradle, said locking means comprisng apertures through said side supports and jack socket, said apertures being alignable upon a central vertical positioning of the jack socket relative to the cradle, said locking means further comprising an elongated lock pin selectively insertable through said aligned apertures.
Claim 5
Dependent Claim
48 words
The alignment device of claim 3 wherein said base comprises opposed upwardly directed parallel end portions, said handle mounting means including a pair of pockets, one affixed to each of said upwardly directed end portions and opening upwardly relative thereto for selective reception of the handle means therein.
Claim 6
Dependent Claim
56 words
The alignment device of claim 4 wherein said handle mounting means further includes a pair of pockets affixed to one of said side supports and generally laterally aligned with the base pockets, each side support pocket being inclined relative to the corresponding base pocket and opening upwardly for the selective reception of the handle means therein.
Claim 7
Dependent Claim
33 words
The alignment device of claim 5 wherein the upwardly directed parallel end portions of said base define abutment means limiting pivotal movement of the cradle relative to a jack socket supported jack shaft.
Claim 8
Dependent Claim
24 words
The alignment device of claim 6 wherein each of said pockets is in the nature of a hollow sleeve with an open lower end.
Claim 9
Dependent Claim
15 words
The alignment device of claim 7 including drainage openings in selected portions of said base.
Claim 10
Dependent Claim
69 words
The alignment device of claim 2 wherein said base includes upwardly directed parallel end portions, said handle mounting means including first upwardly opening pockets affixed to each of said end portions and second pockets generally aligned with the first pockets and secured to an adjoining side support, each of said side support pockets being angularly directed relative to the base pockets, said side support pockets opening upwardly and outwardly.
Claim 11
Dependent Claim
24 words
The alignment device of claim 9 wherein each of said pockets is in the nature of a hollow sleeve with an open lower end.
Claim 12
Dependent Claim
33 words
The alignment device of claim 2 wherein the upwardly directed parallel end portions of said base define abutment means limiting pivotal movement of the cradle relative to a jack socket supported jack shaft.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-26 | 1989-02-25 | 1989-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-26 | 1993-02-25 | 1993-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-26 | 1997-02-25 | 1997-08-27 | $7700.00 | Window Closed / Lapsed |