Boat mooring device

Details Boat mooring device Boat mooring device

1985-03-04

1986-12-09

Blix, Trygve M.

Ships

Mooring device

Boom type

114219, 267 72, B63B 2100

Patent

active

046273751

ABSTRACT:
A device to be used in pairs for mooring a boat alongside a dock, each device including an elongated cylinder preferably of polyvinyl chloride, a first piston for movement within the cylinder, a first piston rod preferably of stainless steel having one end affixed to the first piston and the other end designed to be removably attached to the boat, a first helical spring surrounding that portion of the first piston rod within the cylinder, a second piston with movement within the cylinder, a second piston rod preferably of stainless steel having one end attached to the second piston and its other end being removably attached to the dock, and a second helical spring floating within the cylinder between the first and second pistons.

REFERENCES:
patent: 198275 (1877-12-01), Chase
patent: 220926 (1879-10-01), Luallen
patent: 1641268 (1927-09-01), Halliburton
patent: 3084517 (1967-04-01), Bell
patent: 3848842 (1974-11-01), Jepson
patent: 4144831 (1979-03-01), Heydolph
patent: 4488511 (1984-12-01), Grassano

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