Marine propulsion – Screw propeller
Patent
1995-08-23
1997-03-18
Basinger, Sherman
Marine propulsion
Screw propeller
416244B, 416245A, 440 81, B63H 507
Patent
active
056117183
ABSTRACT:
An auxiliary propelling structure can be attached to an existing propeller system including a propeller having a boss, a propeller shaft and a tightening nut screwed onto the end of the shaft. The auxiliary propelling structure includes an auxiliary boss that is approximately cylindrical to enclose closely the tightening nut of the existing propeller system and having an internal partition with a central through-hole. The partition is pressed against the tightening nut.
REFERENCES:
patent: 2351356 (1944-06-01), Meyer
patent: 3422905 (1969-01-01), Muller
patent: 4391567 (1983-07-01), Ciampolillo
patent: 4538962 (1985-09-01), McCain
Basinger Sherman
Mikado Propeller Co., Ltd.
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