Stern screw for a vessel as well as a vessel provided with such

Details Stern screw for a vessel as well as a vessel provided with such Stern screw for a vessel as well as a vessel provided with such

1995-12-15

1998-01-06

Avila, Stephen

Ships

Steering mechanism

Fluid pressure

440 38, B63H 1100

Patent

active

057043060

ABSTRACT:
A stern screw has a tunnel tube inside which a propeller is rotatable about a shaft. The propeller is driven by a drive motor at least during operation. The stern screw is placed entirely below water level. For this purpose, the tunnel tube has an opening for accommodating therein an intermediate part which is profiled at a first side, forming part of the wall of the tunnel tube, and at an opposite side is provided with a flange for fastening to an outside of a stern of the boat. The intermediate part has a cavity in which a drive shaft is accommodated by which the propeller is driven. The drive motor is mounted in its entirety on the inside of the stern.

REFERENCES:
patent: 2997015 (1961-08-01), Richter
patent: 3127865 (1964-04-01), Pleuger
patent: 3487805 (1970-01-01), Satterthwaite et al.
patent: 3593686 (1971-07-01), Cooper
patent: 3792938 (1974-02-01), Wilde
patent: 4208978 (1980-06-01), Eller
patent: 4789302 (1988-12-01), Gruzling
patent: 4884985 (1989-12-01), Dyrkorn
patent: 5140926 (1992-08-01), Denston

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