US 12,116,099 B2
Marine wake adapted rudder assembly
Bernard Bentgen, Dexter, MI (US); Christopher Bigler, Grand Rapids, MI (US); Kevin Mitchell, Grand Rapids, MI (US); Bruce Dieterle, Grand Rapids, MI (US); Brant Savander, Ann Arbor, MI (US); and Constance Savander, Ann Arbor, MI (US)
Assigned to MICHIGAN WHEEL, Grand Rapids, MI (US)
Appl. No. 17/788,218
Filed by MICHIGAN WHEEL, Grand Rapids, MI (US)
PCT Filed Dec. 18, 2020, PCT No. PCT/US2020/065893
§ 371(c)(1), (2) Date Jun. 22, 2022,
PCT Pub. No. WO2021/194587, PCT Pub. Date Sep. 30, 2021.
Claims priority of provisional application 62/952,831, filed on Dec. 23, 2019.
Prior Publication US 2023/0027488 A1, Jan. 26, 2023
Int. Cl. B63H 25/38 (2006.01)
CPC B63H 25/38 (2013.01) [B63H 2025/388 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A marine rudder assembly comprising:
a rudder blade forming an internal central cavity elongated along a vertical axis of the rudder blade, the internal central cavity forming an inside surface along the vertical axis;
a rudder stock having an upper shaft portion and a lower insert portion, the lower insert portion forming a flattened and twisted configuration extending along the vertical axis such that the lower insert portion of the rudder stock is shaped to fit into and closely conform with a twisted contour formed in the inside surface of the internal central cavity; and
an injectable filler material placed in a gap defined between the inside surface of the internal central cavity and the lower insert portion of the rudder stock.