Boat lift

Hydraulic and earth engineering – Marine vessel portage – launching – or removing – Lifting

Patent

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Details

114 45, 405 1, B63C 306

Patent

active

050908413

ABSTRACT:
A boat lift in which a hydraulic pump and cylinder with a piston is mounted on a manual boat lift so that the piston rod carries a pulley which engages the lifting cable so that when the piston moves in the cylinder the boat will move up or down.

REFERENCES:
patent: 3021965 (1962-02-01), Harvey
patent: 3077742 (1963-02-01), Brown
patent: 3265024 (1966-08-01), Kramlick
patent: 3275167 (1966-09-01), Godbersen
patent: 3284052 (1966-11-01), Godbersen
patent: 4027492 (1977-06-01), Carpenter
patent: 4900187 (1990-02-01), Uchida et al.
patent: 4954011 (1990-09-01), Stenson

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