摘要:
1. A wind propelled vehicle comprising: (a) an airfoil assembly comprising a plurality of airfoils fixedly joined, for which exist many configurations; (b) means to control orientation of said airfoil assembly, in both yaw and pitch, in relation to a relative wind; said means preferrably being a rudder and horizontal stabilizer with elevator; (c) traction means to control direction of movement of said vehicle relative to a support medium; said support medium being, for example, water, land, ice, snow, marsh, tundra, mud, rails, cables, or guides; said traction means being, for example, pontoons, hydrofoils, skis, skates, runners or wheels; and said traction means being substantially coplanar. The vehicle is wind-propelled by controlling the angle of the relative wind to produce a horizontal (sideways) lift force on the airfoil assembly and by controlling the traction means to use that force to cause forward motion. Airborne operation is achieved by changing the angle of the relative wind to produce vertical (upward) lift force on the airfoil assembly. Airborne flight is made stable by proper position of center of gravity of vehicle. Controlled airborne operation is allowed by said orientation means plus ailerons. With additional motor or substantial updraft, sustained airborne operation is possible.
摘要:
A sail propelled vehicle for land or sea in which a triangular yoke is pivotally attached at two of the corners thereof on two pontoons, skis, or skateboards at the forward ends thereof. The mast for carrying the sail is mounted vertically on the yoke at the third corner thereof. The operator is carried on the two pontoons, skis, or skateboards and by exerting force thereon through his feet and legs, the operator can pivot the yoke to position the sail on either side of the pontoons, skis, or skateboards to achieve improved stability, maneuverability and control.
摘要:
A wind operated amphibious vehicle large enough to support a rider has a frame, a sail and three wheels buoyant enough to support the vehicle in water. Brake and steering device acts on the two back wheels and the vehicle has sails to propel it.
摘要:
Modular human powered recumbent vehicle has a variable configuration and size. It comprises a group of standardized modules—fast attachable parts connected together by set of cross tubes (4) of variable length. It has three basic modules: middle (1), left (2) and right (3); each module has several modifications. One or more additional modules, like child seat (17), shopping basket (18), additional pedal (15) or electric (16) drive, also can be attached for performing a specific task. Vehicle can be transformed to a powered or unpowered trailer of variable configuration. It can be folded for storage and disassembled for transportation.
摘要:
The flexible cargo container of this cart partially deflects inside-out as the cart truss supporting it changes orientation pivoting on wheels rotatably mounted at the aft lower extremity of downwardly projecting support struts to serve as a chair. Leg supports providing static stability are pivotably mounted to extend forward thereby resisting tipping moments about the wheel axle with payload located intermediate thereto. Rotation of the forward end of the cart upwardly and rearwardly brings the rearward upper connect strut in contact with the support surface exposing the underside of the flexible container inverted to concavity, resulting in a chair of supine positioning. Support struts making up the truss fold about pivotable connections yielding a non-use flat geometry for storage. Snap releasable interconnections dissociate struts from the truss in further disassembly.
摘要:
A plan for a sail of a sailing craft such as a sailboat, an iceboat and a land yacht having a hull. At least one mast is mounted on an end of the hull and the mast angles upwardly over the hull. A boom is pivotably mounted approximately amidships of the hull. The boom is rotatable through 360.degree. about the mounting point, and the ends of the boom avoid contact with the at least one mast. A triangular sail has a lower edge connected to the boom and an upper corner releasably connected to the top of the at least one mast. The boom, preferably, has an upper member and a lower member. The upper member is rotatable, and the sail may be roller reefed about the upper member. A steering system for the vehicle is provided which is collocated with the controls for the sail whereby the vehicle may be controlled by one individual at a single location. In a catamaran type sailboat, a control ring is connected to the boom whereby pivotal and rotational movement of the sail may be controlled by a person seated on the hull.
摘要:
Disclosed herein is a sailing vehicle with a collapsible frame comprising two longitudinal supports, a plurality of identically constructed transverse struts detachably connected to the longitudinal supports, at least one sail mast, at least one seat, two rear moving elements, and one forward moving element, the latter being steerable via a steering suspension, and a cross arm which is detachably connected to the rear end of the longitudinal supports. The mast, the seat, the forward moving element, and the steering suspension are supported by separate ones of the transverse struts and at least the transverse strut supporting the seat is connected to the longitudinal supports for adjustment lengthwise thereof.
摘要:
A utility sled is formed from a lightweight material and includes a handle flexibly attached to the front end thereof. The handle includes a hook that is seated within a small opening of the utility sled when not in use. A pair of retractable wheels is attached to an exterior of each sidewall of the utility sled. The sidewalls are biased outward when no load is present. When loaded, the sidewalls advantageously tend to straighten vertically. The formed bottom of the sled includes a plurality of ribs which both add strength to the sled as well as function as sled runners when the wheels are retracted. The ribs operate to reduce friction between the sled bottom and the underlying surface.
摘要:
Our system and method for a towable and inflatable recreational device with a retractable wind foil. This towable and inflatable recreational device expands the existing field of art in the water sports recreational devices.
摘要:
A sailing craft having a center hull, a port hull and a starboard hull. The port and starboard hulls are adjustably connected to the center hull by bridge beams such that the port starboard hulls may be disposed adjacent to, or outward from, the center hull. An inverted U-shaped mast has legs angled outwardly and connected to the port and starboard hulls when the mast is erect and legs which are substantially parallel when the mast is stepped down for storage on the center hull. A primary boom is rotatably connected to the center hull and rotates through 360.degree.. An articulating boom is pivotally connected to each of the ends of the primary boom. A sail shape boom is connected to the articulating booms by a trolley on each articulating boom. The head of a sail is connected to the top of the mast and the foot of the sail is connected to the sail shape boom. The sail and booms are rotatable through 360.degree. without contacting the mast. Sail lines connected to the edges of the sail are separated into support lines which are disposed over the surfaces of the sail and connected to wishbone spars to maintain luff and each alignment and control the sail shape by equal tensioning applied by the halyard.