US 11,851,136 B2
Water sports boat with foil displacement system
Cory Wade Dugger, Maryville, TN (US); Rachael Marie Green, Lenoir City, TN (US); Jeffrey Lee Predmore, Knoxville, TN (US); Scott Thomas Ward, Knoxville, TN (US); and Matthew Welton, Sarasota, FL (US)
Assigned to Malibu Boats, LLC, Loudon, TN (US)
Filed by Malibu Boats, LLC, Loudon, TN (US)
Filed on Nov. 7, 2022, as Appl. No. 18/053,068.
Application 18/053,068 is a continuation of application No. 16/840,226, filed on Apr. 3, 2020, granted, now 11,518,482.
Claims priority of provisional application 62/830,241, filed on Apr. 5, 2019.
Prior Publication US 2023/0090224 A1, Mar. 23, 2023
Int. Cl. B63B 1/28 (2006.01); B63B 34/75 (2020.01); B63B 1/24 (2020.01); B63B 1/26 (2006.01); B63B 1/30 (2006.01)
CPC B63B 1/285 (2013.01) [B63B 1/248 (2013.01); B63B 1/26 (2013.01); B63B 1/30 (2013.01); B63B 34/75 (2020.02); B63B 1/242 (2013.01); B63B 1/244 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A foil displacement kit including foils that, when coupled to a water sports boat and deployed in water, exert a down force transmitted to a hull of the boat with movement of the boat with respect to water to mimic ballast, the foil displacement kit comprising:
a first forward foil assembly including a first forward foil and a first forward spar, the first forward foil assembly positioning the first forward foil, when coupled to the boat, forward of a transverse axis at a center of gravity of the boat and port of a longitudinal axis of the boat, the first forward foil, when coupled to the boat at a downforce angle of attack, configured to exert a first down force through the first forward spar to the hull of the boat as the hull moves through water; and
a second forward foil assembly including a second forward foil and a second forward spar, the second forward foil assembly positioning the second forward foil, when coupled to the boat, forward of the transverse axis at the center of gravity of the boat and starboard of the longitudinal axis of the boat, the second forward foil, when coupled to the boat at a downforce angle of attack, also configured to exert a second down force through the second forward spar to the hull of the boat as the hull moves through water;
wherein said first forward foil and said second forward foil are configured for use with the boat to increase a quantity of water displaced by the hull and increase a size of a wake for wake surfing.