US4074647A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sailing rig having camber adjustments
Assignee: Individual
•
Filing: 1976-07-08
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Granted: 1978-02-21
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Expires: 1996-07-08
Abstract
Abstract A sailing rig having camber adjustments is disclosed. The rig includes a mast that is sharply cambered adjacent its base and pivoted to a vehicle, and a boom pivoted to the center pivot of the mast. The sail may be connected to the mast by a continuous bead on the edge of the sail which is received in a slot in the mast and slides between two halyards that are connected to the sail and pass through the tubular mast, one on each side of the slot.
Inventors
- 👤 Richard D. Delaney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:25
CPC Classifications
B; B63; B63H; B63H9/00; B63H9/04; B63H9/06; B63B; B63B15/00; B63B15/0083
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
147 words
A sail rig having a mast pole and a boom, means on said mast pole pivotally connecting it to a vehicle to rotate about an axis, said mast pole having a vertically extending first part connected to said vehicle, and a generally forwardly extending second part fixed to said first part, said second part curving from a generally horizontally extending direction upwardly and terminating at a mast head, a boom pivotally connected to said mast pole at the pivot axis thereof to swing about said axis, a sail, connecting means connecting said sail to said boom and to said mast pole, said mast pole being tubular, said connecting means comprising groove means in one side thereof extending continuously from the top to the bottom of the second part, said sail having a bead thereon extending substantially the length of one side thereof slidably received in said groove.
Claim 2
Dependent Claim
147 words
A sail rig having a mast pole and a boom, means on said mast pole pivotally connecting it to a vehicle to rotate about an axis, said mast pole having a vertically extending first part connected to said vehicle, and a generally forwardly extending second part fixed to said first part, said second part curving from a generally horizontally extending direction upwardly and terminating at a mast head, a boom pivotally connected to said mast pole at the pivot axis thereof to swing about said axis, a sail, connecting means connecting said sail to said boom and to said mast pole, said mast pole being tubular, said connecting means comprising groove means in one side thereof extending continuously from the top to the bottom of the second part, said sail having a bead thereon extending substantially the length of one side thereof slidably received in said groove.
Claim 3
Dependent Claim
18 words
The rig recited in claim 1 wherein means is provided for locking said mast in selected rotated positions.
Claim 4
Dependent Claim
32 words
The rig recited in claim 1 wherein said boom has a first part fixed to said mast pole and a second part hinged to the said rear end of said first part.
Claim 5
Dependent Claim
20 words
The rig recited in claim 1 wherein said boom is pivoted to said mast at the vertically extending port thereof.
Claim 6
Dependent Claim
22 words
The rig recited in claim 1 wherein said boom is hinged to said mast at the lower end of said second part.
Claim 7
Dependent Claim
55 words
The sailing rig recited in claim 1 wherein said curved part of said mast is curved sharply adjacent its base and curved more gently toward the mast head to control the boundary layer of air flowing over said mast, and said boom is hinged to said mast at the lower end of said second part.
Claim 8
Dependent Claim
32 words
The rig recited in claim 1 wherein a handle is provided, said handle being fixed at one end to said generally forwardly extending part of said mast and forming a continuation thereof.
Claim 9
Dependent Claim
25 words
The rig recited in claim 7 wherein said handle extends in a direction opposite said mast and curves downward and is attached to said mast.
References Cited (Backward Citations)
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Cited
GB847310A
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US3112725A
Cited
US3173395A
Cited
US3272167A
Cited
US3656444A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |