IP Library Granted Patent US 12,655,821
Granted Patent B2
US 12,655,821 · App. 19/323,975 · Granted Jun 16, 2026

Recirculating inertial hydrodynamic pump and wave engine

Inventors: Garth Alexander Sheldon-Coulson (Portland, OR); Brian Lee Moffat (Portland, OR)
Assignee: Lone Gull Holdings, Ltd.
F03B13/142F03B13/22F05B2240/93
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Quick Facts
Patent No.
US 12,655,821
App. No.
19/323,975
Granted
Jun 16, 2026
Kind
B2
Abstract

Embodiments disclosed herein include buoyant wave energy converters. In an embodiment, the wave energy converter comprises an upper chamber having a first fluid reservoir and a first gas pocket, and a lower chamber having a second fluid reservoir and a second gas pocket. An injection tube is between and fluidly coupled to the upper chamber and the lower chamber, where the injection tube is to impel a fluid from the second fluid reservoir into the first fluid reservoir when the upper chamber, the lower chamber and the injection tube oscillate about a waterline with the upper chamber adjacent to the waterline and the lower chamber below the waterline and vertically beneath the upper chamber. In an embodiment, an effluent tube is fluidly coupled to the upper chamber and the lower chamber, where the effluent tube is to return the fluid from the first fluid reservoir to the second fluid reservoir.

Claims (50)

1 . A floating wave energy converter, comprising:

an upper chamber with an uppermost point relative to a waterline on which the floating wave energy converter floats, wherein the upper chamber is configured to retain a liquid and a first gas at a first pressure;

a complementary gas chamber configured to retain a second gas at a second pressure, wherein at least a portion of the complementary gas chamber is positioned above the uppermost point of the upper chamber, and wherein the first pressure is different than the second pressure;

an injection tube depending from the upper chamber, wherein the injection tube is configured to impel the liquid into the upper chamber as the floating wave energy converter oscillates vertically about the waterline; and

a turbine configured to be rotated by the liquid as the liquid drains from the upper chamber.

2 . The floating wave energy converter of claim 1 , wherein the injection tube comprises a constricted portion.

3 . The floating wave energy converter of claim 2 , wherein the constricted portion has a frustoconical shape.

4 . The floating wave energy converter of claim 1 , wherein the upper chamber is separated from the complementary gas chamber by a wall.

5 . The floating wave energy converter of claim 1 , wherein the turbine is along a pipe that fluidly couples the upper chamber to the injection tube.

6 . The floating wave energy converter of claim 1 , further comprising:

a lower chamber at an opposite end of the injection tube from the upper chamber, wherein the lower chamber is configured to retain the liquid and a third gas at a third pressure.

7 . The floating wave energy converter of claim 6 , wherein the complementary gas chamber is fluidly coupled to the lower chamber by a pipe, and wherein a valve integrated with the pipe is configured to regulate flow of gasses between the complementary gas chamber and the lower chamber.

8 . The floating wave energy converter of claim 6 , further comprising:

an annular fluid return channel around the injection tube, wherein fluid from the upper chamber flows into the lower chamber after passing through the annular fluid return channel.

9 . The floating wave energy converter of claim 8 , wherein the turbine is along a return pipe that is located between the upper chamber and the annular fluid return channel.

10 . The floating wave energy converter of claim 8 , wherein an upper end of the annular fluid return channel is fluidly coupled to the first gas at the first pressure.

11 . The floating wave energy converter of claim 8 , wherein the annular fluid return channel is co-axial with the injection tube.

12 . The floating wave energy converter of claim 1 , wherein the turbine comprises a fluid or hydrokinetic turbine.

13 . The floating wave energy converter of claim 1 , further comprising:

a ballast at or below a vertical midpoint of the floating wave energy converter.

14 . The floating wave energy converter of claim 1 , further comprising:

a computing system on a platform of the floating wave energy converter.

15 . The floating wave energy converter of claim 14 , wherein the computing system is configured with a plurality of processing systems integrated with each other in order to perform complex computer processing operations.

16 . The floating wave energy converter of claim 14 , wherein the computing system is configured to implement one or more of data center hosting, implementing block chain mining, training machine learning (ML) algorithms, or training artificial intelligence (AI) algorithms.

17 . A method of converting wave energy, the method comprising:

capturing energy from waves of a body of water with a floating wave energy converter, the floating wave energy converter comprising:

an upper chamber with an uppermost point relative to a waterline of the body of water, wherein the upper chamber is configured to retain a liquid and a first gas at a first pressure;

a complementary gas chamber configured to retain a second gas at a second pressure, wherein at least a portion of the complementary gas chamber is positioned above the uppermost point of the upper chamber, and wherein the first pressure is different than the second pressure;

an injection tube depending from the upper chamber, wherein the injection tube is configured to impel the liquid into the upper chamber as the floating wave energy converter oscillates vertically about the waterline; and

a turbine configured to be rotated by the liquid as the liquid drains from the upper chamber; and

using the captured energy to power a computing system coupled to the floating wave energy converter.

18 . The method of claim 17 , wherein capturing energy from the waves of the body of water with the floating wave energy converter comprises impelling the liquid from the injection tube into the upper chamber to increase the first pressure.

19 . The method of claim 17 , wherein capturing energy from the waves of the body of water with the floating wave energy converter comprises impelling the liquid from the upper chamber through the turbine.

20 . The method of claim 19 , wherein the turbine is a fluid or hydrokinetic turbine.

21 . The method of claim 17 , wherein using the captured energy to power the computing system comprises producing a digital good.

22 . The method of claim 17 , wherein using the captured energy to power the computing system comprises executing a computational algorithm.

23 . The method of claim 22 , wherein executing the computational algorithm produces a proof-of-work mechanism for a cryptocurrency.

24 . The method of claim 22 , wherein executing the computational algorithm produces a trained machine learning algorithm.

25 . The method of claim 17 , wherein the computing system is configured with a plurality of processing systems integrated with each other in order to perform complex computer processing operations.

26 . The method of claim 17 , wherein the computing system is configured to implement one or more of data center hosting, implementing block chain mining, training machine learning (ML) algorithms, or training artificial intelligence (AI) algorithms.

27 . A method of converting wave energy, the method comprising:

capturing energy from waves of a body of water with a floating wave energy converter, the floating wave energy converter comprising:

an upper chamber with an uppermost point relative to a waterline of the body of water, wherein the upper chamber is configured to retain a liquid and a first gas at a first pressure;

a complementary gas chamber configured to retain a second gas at a second pressure, wherein at least a portion of the complementary gas chamber is positioned above the uppermost point of the upper chamber, and wherein the first pressure is different than the second pressure;

an injection tube depending from the upper chamber, wherein the injection tube is configured to impel the liquid into the upper chamber as the floating wave energy converter oscillates vertically about the waterline; and

a turbine configured to be rotated by the liquid as the liquid drains from the upper chamber; and

using the captured energy to generate a chemical.

28 . The method of claim 27 , wherein the chemical is hydrogen gas.

29 . The method of claim 27 , wherein the chemical is methanol.

30 . The method of claim 27 , wherein the chemical is HCl.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 19, 2025
From: SHELDON-COULSON, GARTH ALEXANDER; MOFFAT, BRIAN LEE
To: LONE GULL HOLDINGS, LTD.
Reel/Frame 072968/0531 →
Continuity (5)
Continuation 18945404 · Nov 12, 2024
Continuation 18412198 · Jan 12, 2024
Provisional Application 63452676 · Mar 16, 2023
Provisional Application 63439564 · Jan 17, 2023
Related Publication 20260009371A1 · Jan 8, 2026
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