Paddle construction

Details Paddle construction Paddle construction

1988-08-15

1989-06-27

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Operator supported manually actuated type

Operation solely by direct hand manipulation

416 74, 440101, B63H 1604

Patent

active

048424820

ABSTRACT:
A high-efficiency paddle construction having a blade and a stem extending therefrom, and wherein the blade has a pair of opposite, longitudinally extending edges, with flanges extending along the edges. The arrangement is such that there is provided resistance to flow past the side edges when the paddle is being used. There is thus realized improved efficiency, with a consequent reduction in the efford required by the user.

REFERENCES:
patent: 560980 (1896-05-01), Dunlap
patent: 738053 (1903-09-01), Murdock
patent: 2526863 (1950-10-01), Gilliam
patent: 2527040 (1950-10-01), Swenson et al.
patent: 3117325 (1964-01-01), Shelton
patent: 4233925 (1980-11-01), Proctor
patent: 4303402 (1981-12-01), Gooding
patent: 4493663 (1985-01-01), Richmond
patent: 4646483 (1987-03-01), Mangan

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