Manually driven water propulsion device

Details Manually driven water propulsion device Manually driven water propulsion device

1997-05-12

1998-04-28

Avila, Stephen

Marine propulsion

Operator powered drive for propelling means

Rotary cranking arm

440 31, 441124, B63H 1620

Patent

active

057437726

ABSTRACT:
A manually driven water propulsion device including a propulsion assembly comprising an attachment strap, a gearbox, a flexible shaft, a propeller, securing booties and bootie attachment member, the attachment strap being configured as a loop, in an operative orientation the attachment strap being coupled to the gearbox and fastened around a user's waist, the gearbox having a lower surface, a top, a bottom; and a gear assembly being positioned within the gearbox for affording rotation of the shaft and propeller, the bootie attachment member rotatably coupled to the shaft and adapted to allow releasable coupling with the securing booties.

REFERENCES:
patent: 3133522 (1964-05-01), Nicolaie
patent: 3323481 (1967-06-01), Harvey
patent: 3570436 (1971-03-01), Le Vasseur
patent: 4289487 (1981-09-01), Fattler
patent: 5619948 (1997-04-01), Keyvani

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