Propeller

Details Propeller Propeller

1983-05-23

1984-05-29

O'Keefe, Veronica

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Irregular, flanged or channel forming blade surface

428586, 428587, 291568P, 148 165, B64C 1116, B64C 2746

Patent

active

044512082

ABSTRACT:
A propeller comprises a first elongate, non-twisted part (1) of streamlined cross-section and of constant cross-sectional area and constant shape from one end of said part to its other, and a second, planar part (2) which connects with one longitudinally extending edge of the first part and which is of constant thickness and breadth. The second part (2) has a surface (5) which merges at least substantially tangentially with one, convex single-curve surface (3) of the first part, and a surface 6 which merges smoothly with the other surface (4) of the first part (1).

REFERENCES:
patent: 1692081 (1928-11-01), De La Cierva
patent: 1831373 (1931-11-01), Squires
patent: 1853607 (1932-04-01), Ferreby
patent: 2214622 (1940-09-01), Lorenzeu
patent: 3660882 (1972-05-01), Widonitz et al.
patent: 3951611 (1976-04-01), Morrill

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