Outboard drive for boats

Details Outboard drive for boats Outboard drive for boats

2007-06-05

2007-06-05

Barsinger, Sherman (Department: 3617)

Marine propulsion

Screw propeller

Propulsion unit casing

C440S080000

Reexamination Certificate

active

11306327

ABSTRACT:
An outboard drive for boats, having a steerable underwater housing (1) which has a wing-profiled portion (2). Projecting at an approximately 90 degree angle from the aft part of one side face (31) of the wing profile is a face portion (32), the lateral extent of which amounts to about 1–2% of its distance to the steering shaft (36) of the wing profile. As a result of this construction, a lifting force will be generated during forward travel in the water. The face portion is configured on that side of the profile which produces a lifting force counter-directional to a steering force, deriving from the motor torque, upon the wing profile.

REFERENCES:
patent: 1813552 (1931-07-01), Stechauner
patent: 3589204 (1971-06-01), Langley
patent: 4529387 (1985-07-01), Brandt
patent: 4810218 (1989-03-01), Iwai
patent: 5085603 (1992-02-01), Haluzak
patent: 6313136 (2001-11-01), Amin et al.

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