US 12,145,696 B2
Watercraft
Sam Sewell, Southport (AU)
Assigned to Dillinger Pty Ltd, Arundel (AU)
Appl. No. 17/616,972
Filed by Dillinger Pty Ltd, Arundel (AU)
PCT Filed Apr. 3, 2020, PCT No. PCT/AU2020/050329
§ 371(c)(1), (2) Date Dec. 6, 2021,
PCT Pub. No. WO2020/243769, PCT Pub. Date Dec. 10, 2020.
Claims priority of application No. 2019901986 (AU), filed on Jun. 7, 2019.
Prior Publication US 2022/0315174 A1, Oct. 6, 2022
Int. Cl. B63B 32/10 (2020.01); B63B 1/24 (2020.01); B63B 1/28 (2006.01); B63B 32/60 (2020.01); B63H 1/28 (2006.01); B63H 21/17 (2006.01); B63H 21/21 (2006.01); B63H 21/38 (2006.01)
CPC B63B 32/10 (2020.02) [B63B 1/246 (2013.01); B63B 1/248 (2013.01); B63B 1/28 (2013.01); B63B 32/60 (2020.02); B63H 1/28 (2013.01); B63H 21/17 (2013.01); B63H 21/21 (2013.01); B63H 21/386 (2013.01); B63H 2021/216 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A watercraft comprising a board, a mast extending below the board, the mast carrying a foil and a propeller that is driven by a motor, a lubricant lubricating the motor and/or a drive shaft associated with the motor for driving the propeller, the watercraft having a receptacle for holding lubricant, the receptacle being located above the motor, wherein the mast has a conduit that provides fluid communication between the receptacle and the lubricant lubricating the motor and/or driveshaft such that lubricant in the receptacle provides a hydrostatic head of pressure to prevent or minimise water ingress around a propeller seal or a driveshaft seal located adjacent a region where the driveshaft exits into the water.