US3779573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Land sailing trailer
Assignee: Individual
•
Filing: 1971-12-08
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Granted: 1973-12-18
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Expires: 1991-12-08
Abstract
Abstract Land sailing trailers having cradle means for supporting a hull of a sailboat. The cradle means is transversely rotatable about a longitudinally axis of rotation, and tension spring means limits rotation of the cradle means. Wheels support the trailers for traveling on land and one wheel is manually adjustable to steer the trailer. Ski skates are secured to the wheels when the trailer is used on snow or ice, and a trailer hitch forms a part of the trailer to permit transporting of the trailer by a powered vehicle, such as an automobile.
Inventors
- 👤 H Gullberg
- 👤 S Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:59
CPC Classifications
B; B62; B62B; B62B15/00; B62B15/001; B62B15/004; B62B15/002
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
155 words
A land sailing trailer having a rearward end and a forward end, for supporting a boat having a hull including sides, a bottom wall, a forward end and a rearward end, comprising: A. a longitudinally extending cradle for supporting a hull of a sailboat, 1. said cradle having a longitudinally extending axis of rotation; B. securing means for removably securing a sailboat to said hull supporting cradle; C. mounting means for rotationally supporting said cradle about the longitudinally extending axis of rotation; D. longitudinally spaced apart wheel supporting means connected to the cradle for rotataBly supporting a plurality of wheels thereon, 1. said wheel supporting means including transverse wheel adjustment means to vary the transverse spacing between some of said wheels; and E. spring means for limiting rotational movement of said cradle means to prevent said cradle from overturning, 1. said spring means biasing between the cradle and a portion of the wheel supporting means.
Claim 2
Dependent Claim
155 words
A land sailing trailer having a rearward end and a forward end, for supporting a boat having a hull including sides, a bottom wall, a forward end and a rearward end, comprising: A. a longitudinally extending cradle for supporting a hull of a sailboat, 1. said cradle having a longitudinally extending axis of rotation; B. securing means for removably securing a sailboat to said hull supporting cradle; C. mounting means for rotationally supporting said cradle about the longitudinally extending axis of rotation; D. longitudinally spaced apart wheel supporting means connected to the cradle for rotataBly supporting a plurality of wheels thereon, 1. said wheel supporting means including transverse wheel adjustment means to vary the transverse spacing between some of said wheels; and E. spring means for limiting rotational movement of said cradle means to prevent said cradle from overturning, 1. said spring means biasing between the cradle and a portion of the wheel supporting means.
Claim 3
Dependent Claim
120 words
The land sailing trailer according to claim 1, further including a hollow shaft extending substantially vertically adjacent the rearward end of said trailer, said wheel supporting means further including a first axle for rotationally receiving a first wheel thereon, a first wheel supported on said first axle, a first axle mounting frame for supporting said first axle in a substantially horizontal plane, said first axle mounting frame including a substantially vertically extending rod terminating in a free end and being removably received and rotatably mounted within said hollow shaft, and a tiller member secured to said rod for maintaining said rod within said hollow shaft and for rotating said rod within said hollow shaft to steer the land sailing trailer.
Claim 4
Dependent Claim
132 words
The land sailing trailer according to claim 1, comprising a front section and a rear section interconnected by a connecting rod, said front section including a longitudinally extending front cradle adapted to support the forward end of a sailboat, the said front cradle being mounted for transverse rotational movement about the longitudinally extending axis of rotation, said rear section including a rear cradle for supporting the rearward end of a sailboat, connection means for rotatably securing said connecting rod from said front section about substantially the same longitudinally extending axis of rotation as said front cradle to permit rotation of the rear section of the land sailing trailer when the sailboat is secured to said front and rear cradles and said front cradle is rotated about its longitudinally extending axis of rotation.
Claim 5
Dependent Claim
94 words
The land sailing trailer according to claim 3, wherein said wheel supporting means further includes a transversely extending second axle, said second axle comprises a transversely extending second axle supporting tube having inner walls defining axially inwardly directed openings from opposite ends thereof, a forward wheel axle mounted for axial movement in each of said openings, and means for securing each of said forward wheel axles against axial movement in different axial positions within its respective opening to permit adjustment of the transverse space between wheels mounted on each of said forward wheel axles.
Claim 6
Dependent Claim
31 words
The land sailing trailer according to claim 3, wherein said front cradle comprises longitudinally extending, transversely spaced apart support rods for supporting the bottom wall of the hull of a sailboat.
Claim 7
Dependent Claim
36 words
The land sailing device according to claim 4 wherein said securing means includes belt sections adapted to be disposed about opposite sides of a sailboat and having adjacent ends adapted to be secured to each other.
Claim 8
Dependent Claim
79 words
The land sailing trailer according to claim 4 comprising a main body portion having said hollow shaft disposed adjacent the rearward end thereof, said means for supporting said forward wheel axles forming a part of said main body portion and being disposed upstream of said hollow shaft, said cradle having opposed ends rotatably secured to said main body portion to define a longitudinally extending axis of rotation for the said cradle and said cradle having longitudinally extending side margins.
Claim 9
Dependent Claim
64 words
The land sailing trailer according to claim 7, wherein said spring means comprises at least one tension spring disposed adjacent each longitudinally extending side margin of said cradle, said tension springs having two ends, one end of each of said tension springs being secured to said main body portion, and the opposite end of each of said tension springs being secured to said cradle.
References Cited (Backward Citations)
US3175710A
Cited
US3155249A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |