Marine propulsion – Screw propeller – Shafting
Patent
1997-09-16
1999-06-15
Basinger, Sherman
Marine propulsion
Screw propeller
Shafting
440112, 277585, 277572, B63H 2336
Patent
active
059116072
ABSTRACT:
A sealing assembly for a rotary drive shaft that extends through the hull of a boat, the outboard end of the shaft being coupled to a propeller and the inboard end to a marine engine for rotating the propeller. The assembly includes a cylindrical housing joined by a flexible hose to a tube in the stern of the boat through which the shaft passes. Received within the housing is an annular bearing whose bore diameter depends on the size of the shaft whereby the bearing installed in the housing has an internal diameter appropriate to the size of the shaft being sealed by the assembly. Coupled to one end of the housing is an annular cap having an elastomeric lip seal therein that frictionally engages the shaft to prevent sea water from leaking into the boat. A reservoir defined by an annular space within the housing between the lip seal and the bearing is continuously fed with water to cool and lubricate the lip seal.
REFERENCES:
patent: 676889 (1901-06-01), Gasparini
patent: 3565447 (1971-02-01), Hans Peter Goetze
patent: 3889626 (1975-06-01), Kakihara
patent: 5370400 (1994-12-01), Newton et al.
patent: 5503404 (1996-04-01), Newton et al.
patent: 5639098 (1997-06-01), MacDonald
patent: 5795198 (1998-08-01), Pedone
Lacko Mark A.
Newton John R.
Basinger Sherman
Ebert Michael
Lacko Mark A.
LandOfFree
Sealing assembly for propeller drive shaft does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sealing assembly for propeller drive shaft, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealing assembly for propeller drive shaft will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-398876