US4099690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized kite
Assignee: Individual
•
Filing: 1976-08-02
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Granted: 1978-07-11
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Expires: 1996-08-02
Abstract
Abstract A kite is described in which a wing of flexible material is disposed symmetrically about a central line; a wing spreader is structurally associated with the wing for providing equal and opposite extension forces operable at the central line; and an improved stabilizer is provided. The stabilizer has a keel depending from and structurally associated with the lower surface of the wing being attached thereto along one end of the central line, an apertured elevating cell through which air is drawn while kite is in flight with two side walls and upper and lower walls, the cell depending from and structurally associated with the lower surface of the wing along the other end of the central line, and a stabilizer strut for holding open the apertured elevating cell during flight being disposed between the keel and the lower wall of the apertured elevating cell.
Inventors
- 👤 Charles Richard Mendelsohn, deceased
- 👤 executrix by Phyllis Jean Mendelsohn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:44
CPC Classifications
A; A63; A63H; A63H27/00; A63H27/08
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
170 words
A kite comprising: a wing portion of flexible material disposed symmetrically about a central line; wing spreading means structurally associated with said wing portion for providing equal and opposite extension forces operable at said central line; and stabilizer means for stabilizing the kite during flight further comprising; a substantially triangular keel portion depending from and structurally associated with the lower surface of said wing portion being attached thereto along one end of said central line, said wing portion and said keel portion during flight being substantially perpendicular; at least one apertured elevating cell through which air is drawn while the kite is in flight each said cell having two side walls and upper and lower walls, each said cell depending from and structurally associated with the lower surface of said wing portion along the other end of said central line; and stabilizer strut means for holding open each said apertured elevating cell during flight being disposed between said keep portion and said lower wall of each said apertured elevating cell.
Claim 2
Dependent Claim
170 words
A kite comprising: a wing portion of flexible material disposed symmetrically about a central line; wing spreading means structurally associated with said wing portion for providing equal and opposite extension forces operable at said central line; and stabilizer means for stabilizing the kite during flight further comprising; a substantially triangular keel portion depending from and structurally associated with the lower surface of said wing portion being attached thereto along one end of said central line, said wing portion and said keel portion during flight being substantially perpendicular; at least one apertured elevating cell through which air is drawn while the kite is in flight each said cell having two side walls and upper and lower walls, each said cell depending from and structurally associated with the lower surface of said wing portion along the other end of said central line; and stabilizer strut means for holding open each said apertured elevating cell during flight being disposed between said keep portion and said lower wall of each said apertured elevating cell.
Claim 3
Dependent Claim
48 words
A kite as described in claim 1, wherein said wing portion is a triangular body and, upon extension, is substantially disposed in a plane in which said central line is coincident with the longitudinal axis of said triangular body and bisects the leading angle of said triangular body.
Claim 4
Dependent Claim
145 words
A kite as described in claim 2 wherein the sides of said triangular body adjacent said leading angle are defined as leading edges and the side of said triangular body opposite said leading angle is defined as the trailing edge and wherein said wing spreading means include first leading edge stiffening means for wing edge stiffening extending along and attached to a substantial portion of one of said leading edges and spaced from said leading angle a predetermined distance toward said trailing edge; second leading edge stiffening means for wing edge stiffening attached to the other one of said leading edges; and transverse strut means for providing wing spreading extension forces attached under tension to said first and said second stiffening means at points equally spaced from said leading angle, said transverse strut means in cooperative coaction with said first and said second stiffening means.
Claim 5
Dependent Claim
29 words
A kite as described in claim 3 wherein said wing spreading means further includes longitudinal strut means for stiffening wing center disposed along said central line and attached thereto.
Claim 6
Dependent Claim
40 words
A kite as described in claim 1 wherein said side walls of each said apertured elevating cell are reinforced so that during the flight of said kite under gentle wind conditions each said apertured elevating cell is held partially open.
Claim 7
Dependent Claim
77 words
A kite as described in claim 1 wherein said kite further comprises correction means for tethering kite lines to said keel portion and a kite line attached thereto whereby during flight of said kite with lifting forces exerted upwardly upon the lower surface of said wing portion and with a downward force exerted upon said kite line, a downward force is transmitted by said stabilizer strut means to said lower wall of each said apertured elevating cell.
Claim 8
Dependent Claim
55 words
A kite as described in claim 1, wherein said wing portion is a polygonal body and, upon extension, is substantially disposed in a plane in which said central line divides said body into two symmetrical portions and in which said central line exits from said wing portion at a leading angle at one end thereof.
Claim 9
Dependent Claim
145 words
A kite as described in claim 7 wherein the sides of said wing portion adjacent said leading angle are defined as leading edges and the side of said wing portion opposite said leading angle is defined as the trailing edge and wherein said wing spreading means include first leading edge stiffening means for wing edge stiffening extending along and attached to a substantial portion of one of said leading edges and spaced from said leading angle a predetermined distance toward said trailing edge; second leading edge stiffening means for wing edge stiffening attached to the other one of said leading edges; and transverse strut means for providing wing spreading extension forces attached under tension to said first and said second stiffening means at points equally spaced from said leading angle, said transverse strut means in cooperative coaction with said first and said second stiffening means.
Claim 10
Dependent Claim
29 words
A kite as described in claim 8 wherein said wing spreading means further includes longitudinal strut means for stiffening wing center disposed along said central line and attached thereto.
Claim 11
Dependent Claim
65 words
A kite as described in claim 1, wherein said wing portion is an elliptical body and, upon extension, is substantially disposed in a plane in which said central line is coincident with the major axis of said elliptical body and divides said body into two symmetrical portions and in which said central line exits from said wing at a leading angle at one end thereof.
Claim 12
Dependent Claim
146 words
A kite as described in claim 10 wherein the edges of said elliptical body adjacent said leading angle are defined as leading edges and the edge portion of said elliptical body opposite said leading angle is defined as the trailing edge and wherein said wing spreading means include first leading edge stiffening means for wing edge stiffening extending along and attached to a substantial portion of one of said leading edges and spaced from said leading angle a predetermined distance toward said trailing edge; second leading edge stiffening means for wing edge stiffening attached to the other one of said leading edges; and transverse strut means for providing wing spreading extension forces attached under tension to said first and said second stiffening means at points equally spaced from said leading angle, said transverse strut means in cooperative coaction with said first and said second stiffening means.
Claim 13
Dependent Claim
29 words
A kite as described in claim 11 wherein said wing spreading means further includes longitudinal strut means for stiffening wing center disposed along said major axis and attached thereto.
Claim 14
Dependent Claim
27 words
A kite as described in claim 1 wherein said stabilizer means is for stabilizing the kite under wind conditions of from 3 to 30 miles per hour.
References Cited (Backward Citations)
US984295A
Cited
US1356381A
Cited
US2488118A
Cited
US3347500A
Cited
US3796399A
Cited
US3963200A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |