US4497272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mastless sails
Assignee: Individual
•
Filing: 1982-06-01
•
Granted: 1985-02-05
•
Expires: 2002-06-01
Abstract
Abstract Mastless sails for a boat or ship which comprise sails having capability for utilizing static and dynamic lift in combination with drag, gravity, and line tension to provide stability and propulsion forces for the boat or ship, communication capability located near said sails when aloft for use for said boat or ship, sensing capability located near said sails when aloft for use by said boat or ship, and apparatus for raising and lowering the communication and sensing apparatus.
Inventors
- 👤 Sidney E. Veazey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:34
CPC Classifications
B; B64; B64D; B64D17/00; B64D17/02; B64D17/025; B63; B63H; B63H9/00; B63H9/04; B63H9/06; B63H9/069
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
99 words
A mastless sail for a boat or ship comprising: said means consisting of a balloon, parafoil and spinnaker for utilizing static and dynamic lift in combination with drag, gravity, and line tension to provide stability and propulsion forces for the boat or ship; communication means located near the sail means when the sail means is aloft for use by the boat or ship; sensing means located near the sail means when the sail means is aloft for use by the boat or ship; and raising and lowering means for raising and lowering the communicating means and the sensing means.
Claim 2
Dependent Claim
99 words
A mastless sail for a boat or ship comprising: said means consisting of a balloon, parafoil and spinnaker for utilizing static and dynamic lift in combination with drag, gravity, and line tension to provide stability and propulsion forces for the boat or ship; communication means located near the sail means when the sail means is aloft for use by the boat or ship; sensing means located near the sail means when the sail means is aloft for use by the boat or ship; and raising and lowering means for raising and lowering the communicating means and the sensing means.
Claim 3
Dependent Claim
23 words
A mastless sail for a boat or ship as in claim 1 wherein said balloon is filled with a lighter than air gas.
Claim 4
Dependent Claim
33 words
A mastless sail for a boat or ship as in claim 1 wherein said parafoil is a wing type structure having at least a portion thereof filled with a lighter than air gas.
Claim 5
Dependent Claim
19 words
A mastless sail for a boat or ship as in claim 1 wherein said parafoil is a steerable parafoil.
References Cited (Backward Citations)
FR1543337A
Cited
US3521836A
Cited
US3957228A
Cited
FR2372077A1
Cited
GB2055049A
Cited
FR2479127A1
Cited
FR2482553A1
Cited
GB2098946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-02-05 | 1988-08-06 | 1989-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-02-05 | 1992-08-06 | 1993-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-02-05 | 1996-08-06 | 1997-02-05 | $7700.00 | Window Closed / Lapsed |