The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 26, 1988

Filed:

Apr. 01, 1987
Applicant:
Inventor:

Shinya Atsumi, Hamamatsu, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H / ; B63H / ;
U.S. Cl.
CPC ...
440-1 ; 440 51 ;
Abstract

An improved trim tab actuator for a marine propulsion device wherein steering sharpness is improved by providing a pivotally supported trim tab that is steered in response to sensed steering conditions for achieving steering sharpness. In the illustrated embodiment, the steering input force and the steered angle of the outboard drive are measured steered conditions which determine the trim tab position. In addition, certain watercraft conditions such as speed and trim are further measured and determine the optimum trim tab position.


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