US4370824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerial device
Assignee: Individual
•
Filing: 1977-02-23
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Granted: 1983-02-01
•
Expires: 1997-02-23
Abstract
Abstract An aerial device in the form of a disc which can be "sailed" in the air by throwing it in a manner to impart rotation to the disc. Vanes, holes and/or conduits are provided in the disc to force air from the top side or perimeter or other location to the underside thereof. By such means, increased lift is imparted to the device. Also, air cavities are provided to collect and maintain the air on the underside to provide an air cushion, further enhancing the lift imparted to the device.
Inventors
- 👤 Herbert Resnicow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:38
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
An aerial device designed to sail in the air when thrown in a manner such that rotation is imparted to the device, said device comprising, a disc having a top side and an underside, a downwardly extending skirt attached to the peripheral edge of said disc, air passageways in said skirt permitting air to be drawn into the underside of said disc upon rotation of said disc in flight, and at least one cylindrical wall extending downwardly from the underside of said disc to form an air cavity, said cylindrical wall having openings therein whereby the air is drawn in from said passageways in said skirt due to the rotation of said device and is forced inwardly through said openings toward the center of the underside of said device and then downwardly to enhance lift.
Claim 2
Dependent Claim
135 words
An aerial device designed to sail in the air when thrown in a manner such that rotation is imparted to the device, said device comprising, a disc having a top side and an underside, a downwardly extending skirt attached to the peripheral edge of said disc, air passageways in said skirt permitting air to be drawn into the underside of said disc upon rotation of said disc in flight, and at least one cylindrical wall extending downwardly from the underside of said disc to form an air cavity, said cylindrical wall having openings therein whereby the air is drawn in from said passageways in said skirt due to the rotation of said device and is forced inwardly through said openings toward the center of the underside of said device and then downwardly to enhance lift.
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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) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |