US 9,809,289 B2
Hull mounted, steerable marine drive with trim actuation
Robert E. Nutt, Knoxville, TN (US); Scott Crutchfield, Knoxville, TN (US); Robert Scott Beach, Knoxville, TN (US); Douglas J. Yoder, Oshkosh, WI (US); Douglas G. Bickelhaupt, Oshkosh, WI (US); George Edward Phillips, Oshkosh, WI (US); David J. Gruenwald, Menasha, WI (US); and Bryan L. Danner, Oshkosh, WI (US)
Assigned to Blue Sky Marine, LLC, Knoxville, TN (US)
Filed by Blue Sky Marine, LLC, Knoxville, TN (US)
Filed on Jan. 12, 2016, as Appl. No. 14/993,560.
Application 14/993,560 is a continuation in part of application No. 14/455,359, filed on Aug. 8, 2014, granted, now 9,266,593.
Claims priority of provisional application 61/866,296, filed on Aug. 15, 2013.
Prior Publication US 2016/0121987 A1, May 5, 2016
This patent is subject to a terminal disclaimer.
Int. Cl. B63H 20/08 (2006.01); B63H 5/125 (2006.01); B63H 20/10 (2006.01); B63H 20/12 (2006.01); B63H 20/02 (2006.01); B63H 20/04 (2006.01); B63H 20/34 (2006.01); B63H 20/00 (2006.01)
CPC B63H 20/10 (2013.01) [B63H 20/02 (2013.01); B63H 20/04 (2013.01); B63H 20/12 (2013.01); B63H 20/34 (2013.01); B63H 2020/003 (2013.01); B63H 2020/006 (2013.01); B63H 2020/025 (2013.01)] 49 Claims
OG exemplary drawing
 
1. A marine drive assembly adapted for being mounted in an opening in a boat hull, said marine drive assembly comprising:
a marine drive unit extending downwardly through the opening in the boat hull, said marine drive unit having an upper unit and a lower unit coupled to said upper unit, said marine drive unit being adapted to propel the boat through the water;
a propeller shaft housing in cooperation with said lower unit, said propeller shaft housing being adapted to provide drive forces in order to propel the boat through water; and
an enclosure assembly recessed within the hull of the boat and sealed such that water is substantially prevented from entering the boat hull through the opening in the boat hull which receives the marine drive unit and which is adapted to preserve the boat's hydrodynamic efficiency and preserve wake performance of said marine drive assembly, said enclosure assembly including an upper portion disposed substantially within the hull of the boat, a gasket flange plate secured to said upper portion with a substantially water-tight seal, said gasket flange plate having a gasket flange extending radially outward, a retention plate for clamping said gasket flange plate against the hull forming a substantially water-tight seal, an O-ring gasket member formed from a resilient material, wherein said O-ring gasket member is folded such that it has a C-shaped cross section such that said O-ring gasket member is adapted for sealing a junction between said gasket flange and the hull and for further sealing a junction between said retention plate and said gasket flange, wherein said retention plate and said gasket flange plate are configured to closely follow a contour of the hull thereby providing a substantially seamless interface to the boat hull.