Method of and device for propulsion

Details Method of and device for propulsion Method of and device for propulsion

1977-05-10

1979-12-11

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Operator supported manually actuated type

Operation solely by direct hand manipulation

9304, 416 82, A63C 3110

Patent

active

041781287

ABSTRACT:
A propulsion device and its method of use, the device having a forward foil and a rearward foil adapted for alternate transverse reciprocal and alternate pivotal movement in opposed direction about parallel axes. The forward and rearward foil axes are perpendicular to the chords of the forward and rearward foils and the rearward foil is positioned to the rear of, and in a nested relationship with, the forward foil. The axes of the forward and rearward foils are positioned a distance of less than one-quarter of the chord length from the leading edge of the forward and rearward foils, respectively.

REFERENCES:
patent: 35451 (1862-06-01), Johnson
patent: 107376 (1870-09-01), Hunter
patent: 233209 (1880-10-01), Coulter
patent: 2094532 (1937-09-01), Glad
patent: 2343468 (1944-03-01), Messinger
patent: 3084355 (1963-04-01), Ciccotelli
patent: 3215371 (1965-11-01), Schmidt
patent: 3405413 (1968-10-01), Manis
patent: 3665535 (1972-05-01), Picken
patent: 3802008 (1974-04-01), Gongwer

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