US4685642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary kite
Assignee: Individual
•
Filing: 1986-10-10
•
Granted: 1987-08-11
•
Expires: 2006-10-10
Abstract
Abstract A rotational kite using a plurality of sails derives both lifting force and rotational torque from the same sails. Rotation is useful in both stabilizing the kite and in providing a remarkable visual display. Construction is such that there is a minimum of deadweight; the structure efficiently contributes to the forces required for lifting and rotation.
Inventors
- 👤 Alden Schloss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:36
CPC Classifications
A; A63; A63H; A63H27/00; A63H27/08; A63H27/082
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
84 words
A rotary kite which is free to rotate while tethered by flexible means, said kite having a minimum of structural members consisting of a hub, a plurality of masts radiating from said hub, a plurality of sails attached to said plurality of masts, each of said plurality of sails being sheeted to an adjacent one of said plurality of masts with slack to allow wind spillage, and a shaft extending through said hub to allow attachment of said flexible means to constrain said kite.
Claim 2
Dependent Claim
84 words
A rotary kite which is free to rotate while tethered by flexible means, said kite having a minimum of structural members consisting of a hub, a plurality of masts radiating from said hub, a plurality of sails attached to said plurality of masts, each of said plurality of sails being sheeted to an adjacent one of said plurality of masts with slack to allow wind spillage, and a shaft extending through said hub to allow attachment of said flexible means to constrain said kite.
Claim 3
Dependent Claim
16 words
A rotary kite as in claim 1 wherein said masts are set at a dihedral angle.
Claim 4
Dependent Claim
95 words
A rotary kite which is free to rotate while tethered by flexible means, said kite having a minimum of structural members consisting of a hub, a plurality of masts radiating from said hub, a plurality of sails attached to said plurality of masts, each of said plurality of sails being sheeted to an adjacent one of said plurality of masts with slack to allow wind spillage, a shaft extending through said hub, a control arm, said shaft extending through said control arm wherein said flexible means attaches to said control arm to constrain said kite.
Claim 5
Dependent Claim
95 words
A rotary kite which is free to rotate while tethered by flexible means, said kite having a minimum of structural members consisting of a hub, a plurality of masts radiating from said hub, a plurality of sails attached to said plurality of masts, each of said plurality of sails being sheeted to an adjacent one of said plurality of masts with slack to allow wind spillage, a shaft extending through said hub, a control arm, said shaft extending through said control arm wherein said flexible means attaches to said control arm to constrain said kite.
Claim 6
Dependent Claim
16 words
A rotary kite as in claim 3 wherein said masts are set at a dihedral angle.
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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) | 1990-08-10 | 1991-02-09 | 1991-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-10 | 1995-02-09 | 1995-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-10 | 1999-02-09 | 1999-08-11 | $7700.00 | Window Closed / Lapsed |