Abstract The parasail, a glider type aerial device, uses aeronautical principles found on conventional parachutes and sailplanes, thus its name. This craft uses airfoil shaped flying surfaces connected, via a multiplicity of shroud lines, to an external load and control carrying spar and its payload. The wings fly above the spars in a similar manner as a parachute canopy does above its payload. These wings are split at their center to provide angle of attack changes independently from each other. The pilot actuates a set of independently moving spars, using two control levers, that in turn change the angle of attack of the wings using a multiplicity of shroud lines as a transmittal medium. This allows the change to the speed, lift coefficients and direction of travel of the Parasail. By the use of a fully controlled flying wing with its load and control spar far below the wing itself, the result is a glider type of aerial device with a very low center of gravity with great in flight stability. Due to its structural simplicity, flight stability, ease of operation, low cost of manufacturing and operation, a soaring craft is obtained, that has many desirable features for its intended purpose as a sporting aerial machine.
Inventors
👤 Patrick E Page
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-27 17:42
CPC Classifications
B; B64; B64C; B64C31/00; B64C31/028; B64C31/036
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
152 words
A glider type aerial device comprising: an elongated wing of airfoil cross section with leading and trailing edges; an elongated control spar positioned below the wing in spaced parallel relation thereto; said spar having a series of cross arms secured thereto at spaced intervals along its longitudinal axis; a first series of load and control lines connected to the ends of the cross arms at one edge of the spar and to the wing at points space from the leading edge; a second series of load and control lines connected to the ends of the cross arms at the opposite edge of the control spar and to the wing at points spaced from the trailing edge; means for suspending a pilot from the control spar; and means secured to the control spar and extending therefrom for rotating the spar about its longitudinal axis to control the angle of attack of the wing.
Claim 2
Dependent Claim
152 words
A glider type aerial device comprising: an elongated wing of airfoil cross section with leading and trailing edges; an elongated control spar positioned below the wing in spaced parallel relation thereto; said spar having a series of cross arms secured thereto at spaced intervals along its longitudinal axis; a first series of load and control lines connected to the ends of the cross arms at one edge of the spar and to the wing at points space from the leading edge; a second series of load and control lines connected to the ends of the cross arms at the opposite edge of the control spar and to the wing at points spaced from the trailing edge; means for suspending a pilot from the control spar; and means secured to the control spar and extending therefrom for rotating the spar about its longitudinal axis to control the angle of attack of the wing.
Claim 3
Dependent Claim
60 words
A glider type aerial device as defined in claim 1 wherein: the wing is divided along its length to form a plurality of independently movable sections; the control spar is made up of two longitudinal sections, each of which is associated with one or more of the wing sections; and means for rotating each spar section independently of the other.
Claim 4
Dependent Claim
34 words
A glider type aerial device as defined in claim 1 in which: the first series of load and control lines each include a rigid section attached to the cross arms of the control spar.