US 11,754,034 B2
Wave energy device with constricted tube and generator pod
Brian Lee Moffat, Portland, OR (US); and Garth Alexander Sheldon-Coulson, Portland, OR (US)
Assigned to Lone Gull Holdings, Ltd., Portland, OR (US)
Filed by Lone Gull Holdings, Ltd., Portland, OR (US)
Filed on Aug. 24, 2022, as Appl. No. 17/895,010.
Application 17/895,010 is a continuation of application No. 17/231,776, filed on Apr. 15, 2021, granted, now 11,448,180.
Application 17/231,776 is a continuation of application No. 16/544,726, filed on Aug. 19, 2019, granted, now 11,009,000, issued on May 18, 2021.
Application 16/544,726 is a continuation of application No. 15/681,118, filed on Aug. 18, 2017, granted, now 10,385,820, issued on Aug. 20, 2019.
Claims priority of provisional application 62/383,579, filed on Sep. 5, 2016.
Claims priority of provisional application 62/377,679, filed on Aug. 22, 2016.
Prior Publication US 2022/0403813 A1, Dec. 22, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F03B 13/22 (2006.01); F03B 13/18 (2006.01); F03B 11/02 (2006.01); F03B 13/10 (2006.01)
CPC F03B 13/22 (2013.01) [F03B 11/02 (2013.01); F03B 13/10 (2013.01); F03B 13/183 (2013.01); F05B 2210/404 (2013.01); F05B 2230/60 (2013.01); F05B 2240/133 (2013.01); F05B 2250/70 (2013.01); F05B 2260/404 (2013.01); F05B 2260/95 (2013.01); Y02E 10/20 (2013.01); Y02E 10/30 (2013.01); Y02P 70/50 (2015.11)] 12 Claims
OG exemplary drawing
 
1. A positively buoyant wave energy converter, comprising:
a water-conducting tube having at least one constriction for accelerating fluid flowing therein;
a fluid channel configured to receive fluid pressurized by water oscillating in the water-conducting tube;
a turbine disposed in the fluid channel;
a generator operatively coupled to the turbine for generating electricity from a rotation of the turbine;
an enclosure configured to contain a pressurized gas; and
a gas replenishment unit configured to add gas to the enclosure.