Marine propeller with tube shape shock absorbing means

Details Marine propeller with tube shape shock absorbing means Marine propeller with tube shape shock absorbing means

1997-08-22

1999-06-01

Verdier, Christopher

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416135, 416 93A, 416169R, 440 52, 464 74, 464 89, B63H 106

Patent

active

059082844

ABSTRACT:
A propeller is made up of a propelling unit having a plurality of blades, a driving unit for driving the propelling unit, and a plurality of deformable transmission units located between the propelling unit and the driving unit such that the transmission units are retained in the retaining slots of the propelling unit and the driving unit. The transmission units are tubular in shape and capable of deforming to absorb an impact force exerting on the transmission units in a direction perpendicular to the longitudinal axis of the transmission units, so as to safeguard the structural integrity of the propeller at such time when the propeller in motion is impacted on by a foreign object.

REFERENCES:
patent: 2548839 (1951-04-01), Coombes
patent: 2993544 (1961-07-01), Carlson
patent: 4566855 (1986-01-01), Costabile et al.
patent: 4826404 (1989-05-01), Zwicky
patent: 5049034 (1991-09-01), Cahoon

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