Patent US3852910A successfully refreshed from Google Patents.
US3852910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerial toy
Assignee: Individual
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Filing: 1972-04-21
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Granted: 1974-12-10
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Expires: 1992-04-21
Abstract
Abstract The disclosure is of a hollow unitary body, which has a series of airfoils joined together and extending from the center of the body to form a unitary composite airfoil. The airfoils are encompassed by a safety ring. Each of the airfoils have a negative dihedral design, which includes lift spoilers on their top surface. At the peripherical tips of these said airfoils are weights. Along the trailing edge of said airfoils are wing flaps and in profile the composite airfoil is shown as having a substantially flat bottom.
Inventors
- 👤 R Everett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:14
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/18
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
77 words
A propelled aerial toy comprising a unitary body having an upper and lower surface, the upper surface comprising a plurality of radially extending and downwardly inclined dihedral airfoils, the airfoils extending at angular intervals and radiating from the center of the upper surface, the lower surface being subStantially flat and sealed to the upper surface at the perimeter of the body, with a wing flap attached to the trailing edge of at least one of the airfoils.
Claim 2
Dependent Claim
77 words
A propelled aerial toy comprising a unitary body having an upper and lower surface, the upper surface comprising a plurality of radially extending and downwardly inclined dihedral airfoils, the airfoils extending at angular intervals and radiating from the center of the upper surface, the lower surface being subStantially flat and sealed to the upper surface at the perimeter of the body, with a wing flap attached to the trailing edge of at least one of the airfoils.
Claim 3
Dependent Claim
19 words
The body of claim 1, including weights mounted at the outer edge of at least one of the airfoils.
Claim 4
Dependent Claim
26 words
The body of claim 2, with an open pocket in the outer edge of at least one of the airfoils to receive one of the weights.
Claim 5
Dependent Claim
23 words
The body of claim 3, including a cover over the open pocket in the outer edge of at least one of said airfoil.
Claim 6
Dependent Claim
24 words
The body of claim 1, and at least one lift spoiler mounted on the upper surface of at least one of the dihedral airfoils.
Claim 7
Dependent Claim
19 words
The body of claim 1, in which a circular ring is mounted at the outer edge of the airfoils.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |