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794results about "Muscle power acting propulsive elements" patented technology

Watercraft

A novel water craft, which may include a hull with a keel, having propulsion means extending below the water line. The propulsion means comprises a pair of flappers each adapted to oscillate through an arcuate path in a generally transverse direction with respect to the central longitudinal dimension of the watercraft. Means are operatively associated with the propulsion means for applying input force to the propulsion means. The flappers twist to form an angle of attack for providing forward thrust with respect to the longitudinal dimension of the watercraft while moving in both directions along the arcuate path.
Owner:R R SAIL

Method and system for three-dimensional fabrication

A method of three-dimensional fabrication of an object is disclosed. The method comprises: forming a plurality of layers in a configured pattern corresponding to the shape of the three-dimensional object, at least one layer of the plurality of layers being formed at a predetermined and different thickness selected so as to compensate for post-formation shrinkage of the layer along a vertical direction. In various exemplary embodiments of the invention spread of building material of one or more layers is diluted at least locally such as to maintain a predetermined thickness and a predetermined planar resolution for the layer.
Owner:STRATASYS LTD

Squeeze actuated hand interface systems for rotatable items

Hand interfaces (11), (111), (188), (201a), (201b), (202a), (202b), (204), (211), (311), (411), (511), (611), (711), (811), and (911), which improve the performance of many items including: racquets for tennis and other sports; rotary hand tools such as screwdrivers; hockey sticks; and kayak oars. Relative rotation between one of the hand interfaces and a corresponding implement is selectively stopped, and torque is selectively transmitted between the hand interface and the implement, when a user squeezes the implement's handle. The hand interface can be rotated in either direction on the implement, and relative movement stopped at an infinite number of positions. The hand interface amplifies the opposing effects of either a firm grasp or a relaxed grasp. Tactile indicator systems (36) with (38), and (236a,b) with (238a,b), glove (204), as well as handle grips (611), (711), (811), and (911) which rotate on noncircular shafts, enable users to accurately determine rotational positions of the implement to the hand interface. For additional ease of use, adjustable end-stop systems (273a,b) with (275a,b), or (73f,b) with (86f,b) limit the range of rotation between the hand interface and the implement
Owner:KENNER ALLEN D

Muscle-powered vehicle

A muscle-powered vehicle, comprising a treadmill, which is supported by a chassis and is adapted to be actuated by the thrust of the feet and legs of at least one user who walks or runs thereon; a system for travel over land or on water functionally connected to the treadmill by way of motion transmission means; and a steering system for directing the travel.
Owner:PASQUALIN GIORGIO GIULIANO

Electric Motor Assisted Propulsion System for Human-Powered Watercraft

A propulsion system for watercraft for personal enjoyment that incorporates human power with electric motor assistance, energy storage and optional solar power to achieve increased watercraft speeds and / or reduced pedaling effort. Control electronics enable operator-adjustable electric motor assistance to the propulsion, thereby providing flexible pedal cadences and efforts and enjoyment for a wide variety of operators. An optional photovoltaic solar panel augments the power generation to extend travel time with motor assistance, and recharges the energy storage system. This invention enables a pleasure watercraft that is simultaneously lightweight, low cost, low maintenance, environmentally friendly with zero pollution, ultra-low noise, and thrilling to operate, while simultaneously providing a means of enjoyable exercise for operators of nearly all abilities.
Owner:JANSEN PATRICK LEE

Inflatable mirage kayak

An air inflatable watercraft, preferably having a bow and stern, and having a cockpit, a bottom area forming part of said cockpit having a through opening therein adapted to receive a human operated propulsion mechanism which can be operated from the cockpit to propel the watercraft.An air inflatable watercraft having an inflatable, airtight bow and stern, and having a bottom area between two side inflatable, airtight compartments which run essentially the length of the watercraft, upon inflation the two side compartments at least partially extend above the bottom to provide a cockpit therebetween, and the inflated bow and stern form a configuration which is adapted to be efficiently propelled, viz., adapted to cut through the water. This embodiment can be hand rowed or provided with a pedaled propulsion mechanism provided a through opening is built into the bottom.An air inflatable watercraft having a bow and stern and having a central airtight compartment and two side airtight compartments running essentially the length of the watercraft, upon inflation the central compartment forms the bottom, stern and bow, and the two side compartments at least partially extend above the bottom to provide a cockpit therebetween. The central compartment has a through opening adapted to receive a human operated propulsion mechanism.
Owner:HOBIE CAT IP LLC

Method and apparatus of information systems for rowers

A system (12) for providing information to a rower of a boat (10). The system includes a display unit (32) adapted to be coupled to the boat for displaying information to the rower and an imaging device (36) in communication with the display unit. The imaging device is adapted to be coupled to the boat for capturing images and relaying the captured images to the display unit for display and viewing by the rower.
Owner:FORESIGHT VISION

Joint movement detection device and system for coordinating motor output with manual wheelchair propulsion

A joint movement detection device and system is presented which is responsive to elbow or wrist movements during use of a manually-propelled wheelchair to enable coordination of assistive motor energization with a user's efforts at self-motivating the manually-propelled wheelchair during driving, steering, and braking of the wheelchair. Additional means are disclosed which help to ensure user-intended assistive motor output that is responsive to movement of the joint over which the device is worn.
Owner:GOLDEN JR STEPHEN C

Paddle blade that allows use of a handle and/or paddle for any way paddling

InactiveUS8100733B1Good adhesionSimple and structural wayMuscle power acting propulsive elementsEngineering
The invention is the addition to traditional shafts used for stand-up paddling that normally have a standard paddle at one end of the shaft and a handle at the other end of the shaft. The invention incorporates a second paddle attached to the shaft at the location of the handle. The paddle may have an interior opening surrounding a portion of the handle to enable a user to grasp the handle with a user's hand. Alternatively, the body of the paddle can be oriented at an angle relative to the handle so that a gap is formed between an interior surface of the body of the paddle and the handle so that the handle can be grasped by a user's hand with the user's fingers resting in the gap.
Owner:ROSS GARY +2

Ergonomic paddle grip

The present invention relates to an ergonomic kayak paddle. The paddle has a shaft with a longitudinal axis and with a first end and second end. The shaft is adjustable between a first length and a second length. At least one grip is on the shaft at a point intermediate between the first and second ends of the shaft. The grip is contoured to a user's hand, but does not provide profiles for the user's fingers. The grip may be angled outwardly from the longitudinal axis of the shaft at an angle ranging from about 10° to about 30°. An adjuster positioned within the grip allows the angle of the grip to the handle to be adjusted.
Owner:GRIP H2O

Systems and methods for exercise mechanism

Provided are systems and methods for an exercise mechanism including: a base for a user to sit or stand on; a track arranged near the base; at least one handle bar comprising a handle and a paddle blade attached to the track so as to allow sliding movement alongside the track; and a resistance mechanism to provide resistance as the user moves the handle bar in a selected motion depending on the user's exercise goals.
Owner:TAYEBI SEAN K

Watercycle for wet rider

A watercycle having generally do-nut shape float mounted onto a frame or chassis member, and a rider's seat situated within the hollow of the float, and which can be adjusted vertically and horizontally. Adjusting the seat to its highest level will cause the seated rider to submerge up to the hip, and adjusting it to its lowest level will cause the rider to submerge up to about the chest. The seat is likewise adjustable forward and backward for convenient foot-reach to the pedals.
Owner:SAGUCIO ESTEBAN N

Force sensing oar

A system for determining the magnitude of force applied to an oar by a rower as the oar is pulled through water includes a deflection sensor and a temperature sensor mounted on an oar shaft to determine deflection and temperature of a portion of the oar shaft during rowing. A processor connected to the deflection sensor and the temperature sensor receives signals indicative of deflection and temperature of the oar shaft and derives a force applied to an oar blade based on the deflection and temperature signals.
Owner:LUECKER MICHAEL C +1

Human-powered flapping hydrofoil craft

A pair of foils are pivotably coupled to a nacelle. The nacelle is pivotably coupled to a mast extending down from to a frame and below a water surface. A push rod oscillates, causing the nacelle to experience a heaving motion, in turn causing the foils to flap up and down. The push rod is driven by a power plant such as a human rider. Angles of attack for the foils are actively controlled to optimize lift and propulsion forces provided by the foils to cause the water craft to move over the water. A steering fin is also provided for heading control of the water craft. A control system for separate angles of attack for the foil sends appropriate information to servo motors which cause the foils to rotate relative to the nacelle to achieve optimal angles of attack relative to the particular position of the nacelle at any given moment.
Owner:MARCH PHILIP A +3

Watercraft for transportation and exercise

A watercraft for transportation and exercise including a boat for floating on water and having a portion thereof above a waterline and a portion thereof below the waterline The boat has an opening therein for permitting a person to be partially below the waterline and partially above the waterline. A sub-frame is operatively attached to the boat, the sub-frame having a lower position at least partially in the water and an upper position at least mostly out of the water. A propulsion device is operatively attached to the sub-frame for propelling the watercraft forwardly in response to movement of the person's feet, the propulsion device having a foot contact portion. The foot contact portion of the propulsion device being disposed a predetermined distance from the waterline in a transportation mode so that that a person can be at least partially above the waterline when using the propulsion device in the transportation mode, said foot contact portion of the propulsion device being disposed in the water and a substantial distance below said predetermined distance when the propulsion device is being used in an exercise mode wherein at such time the person's legs are at least partially disposed below the waterline.
Owner:STURM REX L

Lever powered watercraft

Embodiments of the disclosure include a flotation device or watercraft propelled through the water using a lever powered propulsion system. The lever powered propulsion system includes human powered actuating levers operably connected to a reciprocating propulsion device. As a rider powers the levers up and down, that motion translates to the propulsion device, which cycles through a high drag propulsion phase and low drag recovery phase. In an embodiment, the propulsion system comprises a hydraulic system. In addition, the hydraulic system drives a carriage that orients a device or devices in a high drag state, then reorients the device or devices in a low drag state. Such devices capable of orientation are referred to herein as “hilos,” or “hilo devices.”
Owner:MURPHY STEPHEN CHRISTOPHER

Frameless pontoon boat

A frameless inflatable pontoon boat in which the pontoons and connecting section have a generally flat top and a generally flat bottom. Sufficient rigidity is achieved in the connecting section and the pontoon by the use of internal thread connections between the top surface and the bottom surface. The internal thread connections confine the inflated shape of the pontoons and connecting section to a flat shape.
Owner:NORTHWEST RIVER SUPPLIES

Boat foldable into a compact self-contained shape

An apparatus with two configurations: a deployed configuration forming a watercraft that floats in water and a folded configuration that allows for transport of the apparatus. The apparatus includes multiple modules. One module is a planar sheet of corrugated material with a plurality of joints that allow the sheet to assume the shape of a hull when in the deployed configuration and to assume a box-shape when in the folded configuration. Another module is a paddle assembly that is releaseably connected to a pair of sidewalls when the sheet is in the deployed configuration. The paddle assembly is foldable such that it fits within the box-shape when the sheet is in the folded configuration. The planar sheet is foldable around a plurality of joints or hinges that are configured to fold two ways, thereby allowing the sheet to assume the two configurations.
Owner:ANGELINI JOSEPH A

Vessel propelled by oscillating fin with control mechanisms

A marine propulsion system emulates the fishes swimming motion yet is highly maneuverable as it permits changes from forward to reverse motion while underway. In other aspects, the propulsion system may be designed and optimized for efficient human powered propulsion.
Owner:MCGUINNESS THOMAS G

Sculling boat assembly

A sculling boat assembly is provided to control the traveling direction and drive a boat, and the sculling boat assembly installs a transmission mechanism on two hulls, connects an end of each transmission mechanism to a handle extended from the two hulls, connects another end of each transmission mechanism to a paddle rod extended from the tail of the boat, and connects an end of each paddle rod with an extension of a fin-shape member. Through the transmission of each paddle rod, a user applies a force onto each handle to drive the fin-shape member disposed on each paddle rod for the movements of pushing water outward and enclosing water inward, such that the water resistance is converted into a reaction by the soft and hard materials of the fin-shape member and its extension to drive the boat to move forward rapidly.
Owner:LIN ROGER
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