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US 10,370,073 B2Granted
Boat lift
OwnerSean A. Barnes, Michael W. Kirbyinventors
Life of this patent
Estimating the term…
Abstract
A floating boat lift having flotation tanks positioned under sides of a frame of the boat lift and a transverse flotation tank that communicates with the flotation tanks. Water flow is regulated so that tanks fill from near the center of the boat lift. Water is accepted into or pumped from the flotation tanks, allowing the frame of the boat lift to fall or rise relative to the surface of the water.
Claims19
A boat lift, comprising:
- a boat lift frame constructed and arranged to receive a boat hull on an upper surface thereof, the boat lift frame comprising:
- a transverse flotation tank positioned under the boat lift frame;
- a first flotation tank that extends through the transverse flotation tank;
- a second flotation tank that extends through the transverse flotation tank, wherein the first flotation tank is spaced apart from the second flotation tank;
- the transverse flotation tank being in hydraulic communication with the first flotation tank and the second flotation tank, wherein the transverse flotation tank comprises:
- a water receiving inlet that communicates with the transverse flotation tank;
- and
- a pump that communicates with a water outlet;
- wherein, in use, water received in the transverse flotation tank, the first flotation tank and the second flotation tank is expelled from the transverse flotation tank, the first flotation tank and the second flotation tank by the pump and through the water outlet.
6 more elements
Dependencies are inferred from the claim text.