US 12,103,643 B2
Watercraft device with hydrofoil and electric propeller system
Donald Lewis Montague, Paia, HI (US); Joseph Andrew Brock, Alameda, CA (US); Jamieson Edward Schulte, Alameda, CA (US); and Daniel Elliot Schabb, Alameda, CA (US)
Assigned to Kai Concepts, LLC, Alameda, CA (US)
Filed by Kai Concepts, LLC, Alameda, CA (US)
Filed on Oct. 13, 2022, as Appl. No. 17/965,009.
Application 17/965,009 is a continuation of application No. 17/012,011, filed on Sep. 3, 2020, granted, now 11,479,324.
Application 17/012,011 is a continuation of application No. 16/543,447, filed on Aug. 16, 2019, granted, now 10,940,917, issued on Mar. 9, 2021.
Application 16/543,447 is a continuation of application No. 15/700,658, filed on Sep. 11, 2017, granted, now 10,597,118, issued on Mar. 24, 2020.
Claims priority of provisional application 62/393,580, filed on Sep. 12, 2016.
Prior Publication US 2023/0095778 A1, Mar. 30, 2023
Int. Cl. B63B 1/24 (2020.01); B63B 32/10 (2020.01); B63B 32/57 (2020.01); B63B 32/60 (2020.01); B63B 32/64 (2020.01); B63H 1/22 (2006.01); B63H 5/07 (2006.01); B63H 21/17 (2006.01); B63H 21/21 (2006.01)
CPC B63B 1/246 (2013.01) [B63B 32/10 (2020.02); B63B 32/57 (2020.02); B63B 32/60 (2020.02); B63B 32/64 (2020.02); B63H 1/22 (2013.01); B63H 5/07 (2013.01); B63H 21/17 (2013.01); B63H 21/213 (2013.01); B63H 2005/075 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A motorized hydrofoil apparatus comprising:
a board having a top surface and a bottom surface;
a first hydrofoil assembly coupled to the board, said assembly having a first hydrofoil wing, a second hydrofoil wing, a first support unit coupling said board to said first hydrofoil wing, a second support unit extending from the first hydrofoil wing to support the second hydrofoil wing, and at least a portion of the second hydrofoil wing hingedly coupled to the first hydrofoil wing via the second support unit;
a propulsion system coupled to the board to provide power to the hydrofoil apparatus;
a sensor to detect movement of the hydrofoil apparatus; and
a control unit to control the at least a portion of the second hydrofoil wing to generate corrective movements to increase stability of the hydrofoil apparatus.