Combination hand-held multi-directional propulsion device and powered oar/paddle for rowboat, canoe, kayak, and the like

a multi-directional propulsion and oar technology, applied in the field of oars or paddles, can solve the problems of not dramatically ease the burden of rowers for a sustained period of use, the addition of strength requirements may preclude the use of many recreational rowers, etc., and achieve the effect of easy removal of the blade and easy conversion

Inactive Publication Date: 2011-09-15
BOUKAS ALEX
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0025]The combination device may preferably include at least one blade being attachable with a quick-release latch to permit easy removal of the blade(s) from the hand-graspable shaft. Interchangeability of the component parts allows the modular device to b...

Problems solved by technology

This added strength requirement may preclude its use by many recreational rowers.
The Horan device uses two parallel shafts being pivotally linked on both ends to keep the “oar's blade and handle parallel to one another and perpendicular to the boat throughout the rowing cycle,” which “is c...

Method used

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  • Combination hand-held multi-directional propulsion device and powered oar/paddle for rowboat, canoe, kayak, and the like
  • Combination hand-held multi-directional propulsion device and powered oar/paddle for rowboat, canoe, kayak, and the like
  • Combination hand-held multi-directional propulsion device and powered oar/paddle for rowboat, canoe, kayak, and the like

Examples

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Embodiment Construction

[0051]There are many considerations which impact the design of a shaft and blade for levering a paddlesports boat, whether it be an oar for rowboats (sweep oar rowing or sculling), or a single-bladed paddle with a handle for canoeing, or a double-bladed paddle for kayaking. In each case, appropriate compromise and resolution between conflicting considerations are aimed at improving performance of the rower / paddler. But, the kind of performance being sought by one rower may be different than the kind of performance, or amount of performance, being sought by different occupants of the various paddlesports boats.

[0052]The primary objective in designing a levering device is to help the user achieve the most efficient stroke in order to propel the paddlesports boat forward according to the user's expertise. In general, the greater the mass of water that the blade is able to “grip,” the greater the resistance against which the paddler can lever him / herself and propel the paddlesports boat...

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Abstract

A multi-functional modular device comprises: a shaft; electric motor(s); battery(s); thrust producing fan(s); and blade(s) being removably attachable to the shaft for levering of a paddlesports boat. With the blade(s) attached to the shaft and the motor(s) off, the device is usable for manual levering, and with the motor(s) on, the fan blade thrust may selectively assist in levering to propel the paddlesports boat. Fan thrust may be usable in a direction opposite to a propulsive direction of levering to reduce work required per stroke, which reduces power per stroke, or may alternatively be usable in the same direction as propulsive levering to increase total propulsive power per stroke, which requires greater strength/work output by the rower/paddler. Various sized blades may be interchangeable therein to adjust the work output. Removing the blade(s) permits the fan to be statically submerged and clocked to propel the boat in a desired direction.

Description

CROSS REFERENCES TO RELATED APPLICATIONS[0001]This application claims priority on U.S. Provisional Application Ser. No. 61 / 281,035, filed on Nov. 12, 2009 with the title, “Hand-Held Propulsion / Navigational Boating Device And Powered Oar / Paddle For Canoe, Kayak, Rowboat, Raft And The Like,” the disclosures of which are incorporated herein by reference.FIELD OF THE INVENTION[0002]The present invention relates to improvements in directional and propulsive control over small watercraft, and more particularly to an oar or paddle which is capable of providing powered assistance to the paddler or rower.BACKGROUND OF THE INVENTION[0003]Recreational boating is a favorite American pastime, and such pleasure craft come in many different forms or categories: dinghies, paddlesports boats, runabouts, daysailers, cruisers, etc. The type of boat chosen by an individual will naturally suit the particular activities in which one seeks to engage, and it is not uncommon for many individuals to own two ...

Claims

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Application Information

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IPC IPC(8): B63H21/17B63H1/14B63H16/04
CPCB63H1/14B63H21/17B63H16/04
Inventor BOUKAS, ALEX
Owner BOUKAS ALEX
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