Did You Know...
...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.
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| Number | Title | Issue Date |
| 7621484 | Rotor kite A rotor kite is characterized by a stabilizer bar connected between the wing and stabilizer ring components of the kite to maintain the wing and the stabilizer ring in a perpendicular orientation with respect to each other during flight. The stabilizer bar is connec... | 11/24/2009 |
| 7335000 | Systems and methods for tethered wind turbines According to some embodiments, systems and methods for tethered wind turbines may be provided. In some embodiments, a system may comprise an airborne body extending horizontally along an axis between a first point and a second point, wherein the body is at least par... | 02/26/2008 |
| 7204459 | Kite A kite has a cover sheet having first and second opposed main surfaces. A frame assembly is attached to the second main surface of the cover sheet to define a body having an overall height and an overall width. The frame assembly has frame members connected together... | 04/17/2007 |
| 7183663 | Precisely controlled flying electric generators One or more tethered platforms, each having three or more, mill rotors, are operated at altitudes in relatively high winds to generate electricity. These windmill kites use one or more electro-mechanical tethers on each platform. Their position, attitude and orienta... | 02/27/2007 |
| 7168657 | Toy helicopter landing skid structure A toy helicopter landing skid structure includes an upper support stand, a propping member and a bottom stand. The upper support stands are connected to the bottom of a helicopter airframe, and the propping member is connected to the bottom of each upper support sta... | 01/30/2007 |
| 7119665 | Sound generator for a kite A sound generator including a mounting clip for attachment to a kite frame. A support arm is secured to, and projects from, the mounting clip. The support arm has a distal end remote from the mounting clip. A pivot mechanism is secured to the distal end of the suppo... | 10/10/2006 |
| 7048232 | Plottner rotor kite A Rotor Kite that is flown by means of two control lines and which has two counter rotating 50 inch rotors and which can be flown in winds of 9 miles per hour and greater. This Rotor Kite can take off, fly in the air at various heights and then be landed by the oper... | 05/23/2006 |
| 6854690 | Aircraft kite A kite in the shape of an aircraft having one or more wings. The number of wings can vary due to novel V-shaped connection members employed together with strut rod members cut to predetermined lengths. The connection members are preformed V-shaped connectors slidabl... | 02/15/2005 |
| 6722613 | Kite having flapping wings A kite is disclosed having a body and a supporting structure. The supporting structure has a central member, wing members, cross members, and a brace member. The central member is attached to the body such that the body has first and second wing portions on either s... | 04/20/2004 |
| 6695258 | Kite device A kite device has an inner main body, and an outer main body surrounding the inner main body. The inner main body has a main shaft, a plurality of fabric plates adhered on the main shaft, and each fabric plate having an edge to receive a support frame. Th... | 02/24/2004 |
| 6598833 | Aircraft kite A kite in the shape of an aircraft having one or more wings. The number of wings can vary due to novel V-shaped connection members employed together with strut rod members cut to predetermined lengths. The connection members are preformed V-shaped connect... | 07/29/2003 |
| 6598832 | Kite assembly A kite assembly has a first kite, a second kite, a rotating blade, a main shaft, a plurality of spine rods, a plurality of first crosspiece rods, and a plurality of second crosspiece rods. The first crosspiece rods are disposed in the first kite. The seco... | 07/29/2003 |
| 6315246 | Kite A kite has a cover sheet and a cross-shaped frame. The cover sheet has an oblong hole and four triangular corner bags. The cross-shaped frame has a spine, a two-way joint disposed on the spine, and two crosspieces connected to the two-way joint. Two rotat... | 11/13/2001 |
| 6283413 | Rotary flyer A rotary flying device comprising an airfoil having an axis of rotation means for rotation thereabout, a stabilizer disk mounted on said airfoil, a bearing assembly means attached to said axis of rotation means, and a bridle means attached to said bearing... | 09/04/2001 |
| 6135388 | Self-erecting collapsible kite A kite that is self-erecting to a flying configuration having a forward opening with control line attached to a spool, a rearward opening with kite fabric stretched to form a surface between the openings, the forward opening urged from the rearward openin... | 10/24/2000 |
| 5954297 | Rotary flyer A rotary flying device comprising an inflatable airfoil having an axis of rotation for rotation thereabout, an inflatable stabilizer disk mounted on the airfoil, a bearing assembly attached to the axis of rotation, and a bridle attached to the bearing ass... | 09/21/1999 |
| 5909859 | Multi-rotor kite glider A kite employing a controllable transmission between two specialized types of rotor assemblies. The torque rotor assembly, is designed to rotate when placed in a stream of wind, collecting power from the wind in the form of lift and torque. The lift rotor... | 06/08/1999 |
| 5833174 | Billowing rotary kite An improved billowing rotary kite is provided. The rotary kite includes a hollow, collapsible wind receiving surface. An air inlet end of the wind receiving surface is retained open by a collapsible and adjustable frame affixed to the surface on a leading... | 11/10/1998 |
| 5810294 | Vaneless rotary kite A vaneless rotary kite suitable for rotation in a direction perpendicular to the wind flow is provided with a symmetrical wind receiving surface supported by a frame and open at the ends thereof permitting the passage of air currents therethrough with a f... | 09/22/1998 |
| 5598988 | Rotary flyer A rotating flying device of the type having an airfoil and a stabilizer disk is disclosed. The flying device uses novel three-hole bearings to allow for flight with streamers. Further, the flying device may be folded for ease in transportation or storage.... | 02/04/1997 |
| 5381988 | Tethered model gyroglider A tethered model gyroglider having a fuselage, a rotor support extending upwardly from the fuselage, and a unitary two-bladed rotor rotatably mounted onto the rotor support. A teetering mechanism permits the rotor to pivot about an axis proximate the cent... | 01/17/1995 |
| 5352144 | Wind activated toy A toy activated air movement including a loop of a self-supporting flexible sheet-like material. The loop has an interior surface and an exterior surface and a major axis perpendicular to the direction of travel. The loop is formed of a material which at ... | 10/04/1994 |
| 5149020 | Tethered rotary kite A wind-powered flying device, generally known as a roto-kite, is described which allows for flight even in slight wind conditions yet also functions well in strong wind conditions. The roto-kite has a stabilizing keel with adjustable position on a main bo... | 09/22/1992 |
| 4848704 | Aerodynamic devices The device includes a rotor (2) mounted for rotation about an axis transverse to a restraining line (4) by means of a bearing (10). The rotor may comprise two lift members (6) each in the form of a short, lightweight tube mounted on a stiff but flexible r... | 07/18/1989 |
| 4790498 | Space spinner A space spinning kite comprising a stabilizing disc and a wing of rigid light weight material assembled at right angles to each other. The wing has a central slot through which a pair of closely spaced radially extending elements are rotated from the slot... | 12/13/1988 |
| 4779825 | Aerodynamic devices An aerodynamic device includes a rotor connected, for rotation about an axis, by bearings to a bridle to which a securing line is attached. At least one stabilizer fin is hinged to the rotor on an axis at right angles to the rotation axis. Each stabilizer... | 10/25/1988 |
| 4685642 | Rotary kite 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 o... | 08/11/1987 |
| 4624648 | Aerial toy A rotary aerial toy comprising a tubular sleeve of flexible material and of circular cross section. In one form of the invention the tubular sleeve tapers from one end toward the other with air entering the larger head end and moving toward the tail end. ... | 11/25/1986 |
| 4606518 | Space spinner A space spinner, or kite, is provided which derives its lift from the wind blown rotation of a wing, stabilizer disc, and a dowel with a set of spacers affixed to both ends, at the end of a V-bridle of string. The kite is formed of an assembly of componen... | 08/19/1986 |
| 4577815 | Wing assemblies for aircraft A longitudinally extending flying surface in the form of a box-like structure, floats on and surrounds a frame including a spar, in the chordal plane. Two suitable links mounted at a spanwise distance between them, link the spar with the flying surface: t... | 03/25/1986 |
| 4365772 | Aircraft having buoyant gas balloon An aircraft is provided utilizing a spherical balloon filled with buoyant gas such as helium at a pressure substantially greater than atmospheric so that its dimensions are substantially unaffected by changes in atmospheric pressure or temperature. The ai... | 12/28/1982 |
| 4243190 | Rotary wing device A rotary wing device has a circular stabilizer disc and, secured normally thereto, a bilaterally symmetrical wing member having a first symmetry axis intersecting the center of the stabilizer disc. The ends of the wing member at the first symmetry axis ar... | 01/06/1981 |
| 4121794 | Flying toy A flying toy or kite is provided which generates lift by spinning as it rotates at the end of a loop of string. The toy is molded of foamed plastic, preferably of two major components including a wing to spin about a lateral axis and a disc-shaped central... | 10/24/1978 |
| 4119283 | Kite structure The kite structure of this invention comprises a pair of plates assembled together in normal intersecting relation. The plates are provided with grooves and slots which are engaged during assembly. The plates may be shaped to provide numerous different th... | 10/10/1978 |
| 4113209 | Rotating kite A rotating kite including an elongated control arm, apparatus for affixing kite string to the free ends of the control arm, a spindle rotatably affixed to the central portion of the control arm, a plurality of rigid air engaging arms fixedly secured in a ... | 09/12/1978 |
| 4078746 | Acrobatic rotary kite The kite structure herein provides for inherent correction for changes in speed of rotation and direction of wind and has self-starting features and structures that minimize the effect of cord and stabilizer contact which, in the overall, provides for eas... | 03/14/1978 |
| 4078745 | Rotary kite A rotary kite suitable for rotation in a direction perpendicular to the wind flow is provided with a symmetrical wind receiving surface supported by a frame and open at the ends thereof permitting the passage of air currents therethrough with at least one... | 03/14/1978 |
| 4051622 | Free flying aerodynamic toy with high stability A free flying aerodynamic toy that is manually launched and is composed of an elongate air foil having two identical surfaces that are joined to one another symmetrically of the longitudinal axis so that in response to rotation and translation through air... | 10/04/1977 |
| 4012017 | Rotary kite A rotary kite consisting of a single elongated airfoil element or wing with two perpendicularly attached circular stabilizer elements positioned on the airfoil so as to enclose a central longitudinal quarter of the airfoil element. Each stabilizer disk ha... | 03/15/1977 |
| 3997136 | Toy-kite airplane An airplane-like kite toy, which is designed to simulate an airplane in appearance and in flight characteristics, the toy having rotatable wings detachably mounted to a fuselage body in a novel manner wherein the wings are fixedly secured to a shaft, the ... | 12/14/1976 |
