A propulsion system, for use by a swimmer in both on-water and under-water applications, includes at least one power supply unit attached to a sleeve secured about and to a forearm of the swimmer, at least one corresponding propulsion unit including a motor and an impeller, the propulsion unit offse
A propulsion system, for use by a swimmer in both on-water and under-water applications, includes at least one power supply unit attached to a sleeve secured about and to a forearm of the swimmer, at least one corresponding propulsion unit including a motor and an impeller, the propulsion unit offset from the forearm near to the wrist and away from the head of the swimmer, and control elements that actuate the power and propulsion units. One control element includes a grip upon the flexion axis of the swimmer which controls pitch of a longitudinal axis of the propulsion unit relative to a forearm of the swimmer, the control elements include a pivotally secured bracket, and elements for control of the level of power provided to the propulsion unit, in which the rotation and control elements are both positioned for ease of accessibility by a hand of the swimmer.
대표청구항▼
1. A propulsion system for use by a swimmer in both on-water and under-water applications, the system comprising: (a) at least one power supply integrally secured upon a sleeve, the sleeve in turn secured against and about a forearm of the swimmer;(b) at least one propulsion unit each including a th
1. A propulsion system for use by a swimmer in both on-water and under-water applications, the system comprising: (a) at least one power supply integrally secured upon a sleeve, the sleeve in turn secured against and about a forearm of the swimmer;(b) at least one propulsion unit each including a thruster having an impeller therewith from which hydrodynamic thrust results, the thruster in electrical communication with the power supply, said propulsion unit within a housing and having a bracket pivotally securing it to said sleeve, said unit extending in a direction laterally offset away from said forearm and distally and away from the head of the swimmer;(c) control means for said power supply and propulsion units, said control means including: (i) means for pitch control of a longitudinal axis of said propulsion unit by rotation of a flexion axis of a wrist of the swimmer, said pitch control means including a pivot point of said pivotally secured bracket; and(ii) means for control of thrust of said propulsion unit by said power unit, said power control and pitch control means positioned relative to said sleeve for accessibility by a hand of the swimmer. 2. The system as recited in claim 1, in which said control means comprises: thumb, finger and wrist accessible controls for said flexion axis pitch control and said power control means, each of said means surrounded by a housing. 3. The system as recited in claim 2, in which said power control means includes a Hall-effect voltage controller. 4. The system as recited in claim 1, in which said sleeve comprises an extension of a lower arm covering of the swimmer. 5. The system as recited in claim 3, in which said power control means comprises a circuit including a motor controller, itself controlled by a PWM circuit controlled by said Hall-effect voltage controller. 6. The system as recited in claim 2, in which said control means exhibits axial resilience at a proximal end thereof. 7. The system as recited in claim 2, in which a housing about said bracket further comprises a substantially rigid radial member pivotally securing said propulsion unit to said forearm proximally to a wrist of the swimmer. 8. The system as recited in claim 2, said shroud-like cover of said impeller defining a nozzle. 9. The system as recited in claim 2, in which said pitch control means comprises: means for tilting of the axis of the propulsion unit about the forearm of the swimmer. 10. The system as recited in claim 8, in which said system defines a specific gravity of between about 1.0 and about 1.25. 11. The system as recited in claim 1, in which said pitch control means of said propulsion unit includes an elongate control handle operable by extension and flexion of a wrist of the swimmer. 12. The system as recited in claim 1, in which one of which said at least one power supply unit, motor, propulsion unit and controls thereof further include a system comprising a second of said elements similarly proportioned to the forearm of the swimmer, wherein each of said controls upon a second forearm may be controlled independently of those upon the first forearm of the swimmer. 13. The system as recited in claim 5, in which said motor comprises a DC brushless motor. 14. The system as recited in claim 5, in which a PWM signal of said control means comprises a frequency of about 50 Hertz, modulated pulses having a width of between about 1 and about 2 milliseconds, and a repetition of said pulses about 20 milliseconds each. 15. The system as recited in claim 5, in which an output of voltage of said power unit falls within a range of about zero and about 30 volts DC. 16. The system as recited in claim 12, in which each power supply unit includes one or more DC batteries in electrical communication with said motor power controller.
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이 특허에 인용된 특허 (6)
Cameron Michael H. (Bermuda Dunes CA) Cameron James F. (Bermuda Dunes CA), Apparatus for propelling a user in an underwater environment.
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