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:
Dec. 08, 1992

Filed:

Jun. 19, 1990
Applicant:
Inventors:

Kazuyuki Ogiwara, Gunma, JP;

Hitoshi Kotajima, Gunma, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
440-1 ; 440 53 ;
Abstract

The present invention describes a system for controlling the planing angle of a boat powered by an outboard motor. Sensors are provided which measures the inclination of the propeller of the boat and the acceleration of the boat. An angle-changing motor is mounted between the outboard motor and the boat and a motor control means receives signals from the angle sensor and the acceleration sensor in order to control the angle between the propeller and the boat. Other sensors can be applied to detect the angle between the outboard motor and the boat in order to prevent excessive angles from occurring. A timer can also be used to nullify the effects of the acceleration sensor after a predetermined time.


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