Marine propulsion – Screw propeller – With means effecting or facilitating movement of propulsion...
Patent
1998-02-04
1999-11-02
Basinger, Sherman
Marine propulsion
Screw propeller
With means effecting or facilitating movement of propulsion...
29523, B63H 2008
Patent
active
059759674
ABSTRACT:
The present invention provides a tilt device for a marine propulsion unit comprising a hydraulic cylinder device filled with a hydraulic fluid, where a piston fixed to one end portion of a piston rod is provided slidably in an inner cylinder and an outer cylinder, a tank device for storing the hydraulic fluid, and a pump device for the telescopic operation of the hydraulic cylinder device by supplying and exhausting the hydraulic fluid in the tank device into the hydraulic cylinder device, wherein a valve block of the pump device is cast-molded, the inner cylinder and the outer cylinder of the hydraulic cylinder device are made of a pipe material, a cylinder fixing portion having a diameter larger than that of the outer cylinder is formed in the valve block, and the outer cylinder is fixed to the cylinder fixing portion by the diameter enlarging processing.
REFERENCES:
patent: 2352390 (1944-06-01), Kirkland
patent: 2640323 (1953-06-01), McLeod
patent: 2695446 (1954-11-01), Meyer
patent: 2847937 (1958-08-01), Garvey et al.
patent: 3473325 (1969-10-01), Vargo
patent: 5129137 (1992-07-01), Orihara et al.
patent: 5149285 (1992-09-01), Kinoshita
Basinger Sherman
Showa Corporation
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