Marine propulsion – Screw propeller – Propulsion unit casing
Reexamination Certificate
2005-07-26
2005-07-26
Sotelo, Jesus D. (Department: 3617)
Marine propulsion
Screw propeller
Propulsion unit casing
C440S049000
Reexamination Certificate
active
06921305
ABSTRACT:
An outboard drive unit for a watercraft to allow propulsion of the watercraft in mud and water. The drive unit has a reduction gear assembly mounted between a motor and a propeller assembly, thereby allowing an engine of given capacity to turn a propeller with increase pitch and surface plane area. A propeller shaft is oriented at an obtuse angle in relation to an input shaft extending from the motor to allow the watercraft to accelerate easier, especially in mud conditions, while protecting the propeller from impact with grass and under water obstructions.
REFERENCES:
patent: 2096457 (1937-03-01), Irgens
patent: 3628492 (1971-12-01), Baldwin et al.
patent: 4826459 (1989-05-01), Slattery
Keaty Professional Law Corporation
Sotelo Jesus D.
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