Marine propeller with adjustable cupping

Details Marine propeller with adjustable cupping Marine propeller with adjustable cupping

1997-01-23

1998-08-11

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

Removable auxiliary attachment to work surface

416146R, 416224, 416235, 298891, B63H 126

Patent

active

057918740

ABSTRACT:
A marine propeller including a hub rotatable about a longitudinal axis and having a plurality of blades extending outwardly from the hub. Each of the propeller blades includes a fixed propeller blade stem and a removable cup extension. The cup extension defines the trailing edge of each propeller blade and is removably mounted to the propeller blade stem. The cup extensions can selectively be removed from the blade stems and new cup extensions attached in order to modify the amount of cupping included on the propeller.

REFERENCES:
patent: 4802822 (1989-02-01), Gilgenbach et al.
patent: 4865520 (1989-09-01), Hetzel et al.
patent: 5158433 (1992-10-01), Cleary
patent: 5328329 (1994-07-01), Monroe
patent: 5351395 (1994-10-01), Crawmer et al.
"Everything You Need To Know About Propellers", pp. 6-8, 4th Ed., Brunswick Corp., P/N 90-861244-92, 1992.

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