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:
Jun. 29, 1993

Filed:

Nov. 27, 1991
Applicant:
Inventor:

Eiichiro Tsujii, Hamamatsu, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H / ;
U.S. Cl.
CPC ...
440 56 ;
Abstract

A number of embodiments of hydraulic assemblies for interpositioning between a marine outboard drive and a watercraft for controlling the position of the outboard drive relative to the watercraft. Each embodiment includes a double acting cylinder assembly but the chambers of the cylinder assemblies do not communicate with each other so that they may be filled with different fluids and/or a fluid and a gas and at different pressures to provide manual tilt up assistance. Various control valve arrangements are also disclosed for permitting popping up action and for permitting manual tilt up operation.


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