Hydraulically powered marine propulsion tilting and trimming system with memory

Abstract From the Canadian patent

Disclosed herein is a marine propulsion device including a tilt hydraulic cylinder-piston assembly connected between a boat mounted member and a propulsion assembly, a trim hydraulic cylinder-piston assembly including a trim cylinder fixed to the member and having therein a reciprocably movable trim piston having a piston rod adapted for releasably engagement with the propulsion assembly, a reversible pump effective when operating in a first mode, to supply hydraulic fluid under pressure to a first port and to provide suction at a second port and effective when operating in a second mode, to supply hydraulic fluid under pressure to the second port and to provide suction at the first port, a …