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.
Patent No.:
Date of Patent:
Dec. 29, 1981
Filed:
May. 21, 1979
Tamotsu Nakamura, Iwata, JP;
Hideo Suzuki, Iwata, JP;
Showa Manufacturing Co., Ltd., Tokyo, JP;
Abstract
A trim-tilt device for marine propulsion devices wherein a cylinder and a piston rod slidably fitted in the cylinder are provided to be connected respectively with a propulsion device which in turn is connected to a hull so as to be rotatable in a vertical plane, and with the hull. A tilt piston is fitted to the tip of the piston rod and a free piston is arranged on the bottom side of the cylinder as opposed to the tilt piston and a trim piston is fitted to the tip of a pipe slidably fitted to the above mentioned piston rod. The trim piston is arranged on the opposite side of the tilt piston as opposed to the free piston and is slidably fitted in the above mentioned cylinder. Oil inlet and outlet ports are provided at both ends of the cylinder Stoppers and check valves are provided for controlling the oil pressure within the piston and cylinder arrangement. The trim-tilt device permits a trimming and tilting operation with a single cylinder.