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Boat Lift Inventions & Patents
From Clixoo Boats – The Boats Guide @ Clixoo
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Boat Lift Inventions & Patents
See Boat Patents Section of Clixoo Boats for all Boat Patent Resources
Boat Lift
1 Boat lift - A boat lift includes a vertical H-beam driven into the floor of a body of water adjacent a pier. Patent number: 4678366 Filing date: Jul 31, 1985 Issue date: Jul 7, 1987
2 Boat lift - A boat lift supported on a single stanchion that includes a sleeve assembly mounted for slidable movement on the stanchion. Patent number: 4482268 Filing date: Oct 13, 1983 Issue date: Nov 13, 1984
3 Boat lift - The Boat Lift has two support rods with a lower pulley connected to each end of each support rod. Patent number: 5051027 Filing date: Dec 15, 1989 Issue date: Sep 24, 1991
4 Boat lift - A boat lift assembly wherein the use of a conventional cable system has been replaced with a screw drive assembly. Patent number: 4832210 Filing date: Feb 16, 1988 Issue date: May 23, 1989
5 Boat lift - A free floating fully self contained boat lift has two floats which support a cantilever lifting device. Patent number: 5485798 Filing date: Mar 24, 1994 Issue date: Jan 23, 1996
6 Cradle type boat lifts - A boat lift for a berth having permanently positioned piles in pairs. Patent number: 4686920 Filing date: Nov 24, 1986 Issue date: Aug 18, 1987
7 Hydraulic boat lift - The present invention sets forth an hydraulically operated boat lift for lifting small boats upwardly out of a body of water by simultaneously supplying water pressure to four support posts connected to four corner portions of a lifting frame. Patent number: 4773346 Filing date: Apr 8, 1987 Issue date: Sep 27, 1988
8 Programmable boat lift control system - A boat lift control system may be programmed so that with a push of a button, either remotely or adjacent the system, the lift may lift or lower a boat to a pre-programmed elevation. Patent number: 5593247 Filing date: Sep 7, 1995 Issue date: Jan 14, 1997
9 Side loading boat lifts - A boat lift mounted on a plurality of spaced masts secured in suitable foundations are provided to support an equal number of spaced rails extending angularly into the water to a depth below the draft of the boats to be elevated on the boat lift. Patent number: 4641996 Filing date: Sep 20, 1984 Issue date: Feb 10, 1987
10 Boat lift apparatus - A lift apparatus has a load member, a lift cradle and a lifting arrangement. Patent number: 4983067 Filing date: Mar 8, 1990 Issue date: Jan 8, 1991
11 Boat lift - A boat lift for installation in a boat well in a boat dock between the opposing sides of the boat well to lift a boat out of the water and lower a boat into the water. Patent number: 4808028 Filing date: Jan 25, 1988 Issue date: Feb 28, 1989
12 Boat lift - A boat lift of the type that is mounted on the pilings of a boat slip or dock having four pilings placed in a rectangular arrangement is provided. Patent number: 7117805 Filing date: Jun 15, 2005 Issue date: Oct 10, 2006
13 Boat lift - A boat lift includes a pair of straps or ropes which are secured at one end at intermediate elevations along a pair of horizontally spaced upright standards. Patent number: 4764081 Filing date: Aug 24, 1983 Issue date: Aug 16, 1988
14 Boat lift - A boat lift consisting of a support and a pair of arms aligned in parallel spaced relation. Patent number: 5108251 Filing date: Mar 29, 1990 Issue date: Apr 28, 1992
15 Dock mounted boat hoist - A boat lift includes a vertical main post mounted on a dock, the lower end of the main post inserted into a body of water adjacent the dock and with the lower end spaced above the floor of the water. Patent number: 5427471 Filing date: Feb 3, 1994 Issue date: Jun 27, 1995
16 Radio controlled boat lift - A remote controlled boat lift comprises a remote transmitter unit that can selectively transmit one of two pre-determined RF signals. Patent number: 4763592 Filing date: Mar 19, 1987 Issue date: Aug 16, 1988
17 Lightweight combination boat trailer and lift - This invention relates to an apparatus and method for transporting a boat and elevating the boat above a body of water utilizing a lightweight combination boat trailer and lift. Patent number: 5380143 Filing date: Mar 17, 1993 Issue date: Jan 10, 1995
18 Modular floating boat lift - A floating boat lift capable of accommodating a wide variety of V-hulled boats. Patent number: 6006687 Filing date: Jan 21, 1998 Issue date: Dec 28, 1999
19 Hydraulic boat lift - The invention is a hydraulic boat lift having improved, reinforced concrete pilings. Patent number: 5522671 Filing date: Apr 17, 1995 Issue date: Jun 4, 1996
20 Boat lift transport apparatus - A transportable boat lift having a base and a boat support frame that is mounted on the base for movement between a lowered position and a raised position. Patent number: 5687663 Filing date: Jun 19, 1996 Issue date: Nov 18, 1997
21 Housing for a boat lift motor, pulley and gear drive - A housing for at least partially housing a boat lift pulley of a boat lift includes a main wall having a substantially vertically disposed wall portion. Patent number: 6122994 Filing date: Dec 9, 1998 Issue date: Sep 26, 2000
22 Shallowdraft floating boatlift - A boatlift including two floatation chambers operably engaged to a boat hull engaging means by a lifting means connected there between. Patent number: 5131342 Filing date: Jul 16, 1990 Issue date: Jul 21, 1992
23 Inflatable floating boat lift - An inflatable floating boat lift device constructed of a flexible impermeable fabric comprising main air chambers and a network of hoses and valves connected to a blower controlling the inflation and deflation of each main chamber independently. Patent number: 5860379 Filing date: Aug 22, 1997 Issue date: Jan 19, 1999
24 Floating boat lift - A floating boat lift for lifting and supporting a boat above the surface of a body of water. Patent number: 5115753 Filing date: Jun 10, 1991 Issue date: May 26, 1992
25 Boat lift canopy - The invention is a pre-fabricated boat lift canopy constructed of galvanized steel or aluminum tubing. Patent number: 5573026 Filing date: Mar 29, 1995 Issue date: Nov 12, 1996
26 Watercraft lift - A watercraft lift having raised and lowered positions is provided. Patent number: 5908264 Filing date: Jul 31, 1997 Issue date: Jun 1, 1999
27 Lift for marine craft - According to the invention, a lift is provided having base beams, first and second pairs of lifting arms and lifting rails. Patent number: 4787327 Filing date: Feb 26, 1987 Issue date: Nov 29, 1988
28 Boat lift apparatus - A combination boat lift apparatus and piling securable to the bottom of a body of water. Patent number: 5934826 Filing date: Jul 9, 1998 Issue date: Aug 10, 1999
29 Hydraulic lift for boats - A hydraulic lift for raising a boat out of water into a raised storage position is proposed. Patent number: 5890835 Filing date: Aug 14, 1997 Issue date: Apr 6, 1999
30 Collapsible boat lift - A boat lift that is collapsible into a plurality of segments for quick and convenient transportation and storage during the off-season. Patent number: 5240347 Filing date: Dec 8, 1992 Issue date: Aug 31, 1993
31 Adaptable boat lift - An adaptable boat lift for use in raising and lowering boats having a weight of up to about sixty thousand pounds. Patent number: 5769568 Filing date: Jan 15, 1997 Issue date: Jun 23, 1998
32 Boat-lift systems and methods - A boat-lift system adapted to move a smaller boat relative to a larger boat. Patent number: 6782842 Filing date: Jan 6, 2003 Issue date: Aug 31, 2004
33 Modular floating boat lift - The present invention relates to a boat lift including a base structure. Patent number: 6964239 Filing date: Nov 13, 2002 Issue date: Nov 15, 2005
34 Combination boat lift and dock - A preferred embodiment of a combination boat lift and dock is described having two spaced pontoons with an intermediate boat support. Patent number: 6032601 Filing date: Mar 5, 1999 Issue date: Mar 7, 2000
35 Synchronously driven, multiple cable boat lift - A synchronously driven, multiple cable boat lift is used in combination with proximal and distal support structures. Patent number: 6408776 Filing date: Oct 20, 2000 Issue date: Jun 25, 2002
36 Stationary boat cover - A stationary boat cover suspended from an overhead supporting structure disposed over a boat lift for covering a boat. Patent number: 5769105 Filing date: Oct 6, 1997 Issue date: Jun 23, 1998
37 Combined dock and boat lift - A portable dock is shown having a deck with a portion providing a support platform for a boat lift. Patent number: 5222830 Filing date: Jan 15, 1992 Issue date: Jun 29, 1993
38 Boat lift method - A boat lift method and design which enables a boat to be efficiently stored above water at a dock location to prevent algae and dock damage to a boat. Patent number: 5979349 Filing date: Feb 12, 1999 Issue date: Nov 9, 1999
39 Solar powered boat lift - A solar powered boat lift includes a support structure adjacent to the boat to be lifted. Patent number: 6543375 Filing date: Dec 5, 2001 Issue date: Apr 8, 2003
40 Portable boat lift - A portable boat lift for removal of a boat from a boat trailer comprising two elongated free-standing upright frame members. Patent number: 6584922 Filing date: May 23, 2002 Issue date: Jul 1, 2003
41 Remote boat lift switch - A novel watercraft lifting system for raising a watercraft to different positions relative to water and docks. Patent number: 7207746 Filing date: Feb 17, 2006 Issue date: Apr 24, 2007
42 Automatic leveler for boat lifts - A boat lift and leveler are provided in which the boat lift consists of a cradle supported by at least two pontoons laterally disposed beneath and fixed to the cradle. Patent number: 5002000 Filing date: Jan 9, 1990 Issue date: Mar 26, 1991
43 Boat lift using one-way clutch - A boat lift uses a one-way roller bearing in association with a friction disc clutch. Patent number: 6883784 Filing date: Oct 14, 2003 Issue date: Apr 26, 2005
44 Powered method and apparatus for lifting a boat - A powered method and apparatus for raising and lowering a boat in a boat lift with quick connection to and use of the boat battery to power a DC electric motor on the lift. Patent number: 4954011 Filing date: Aug 1, 1988 Issue date: Sep 4, 1990
45 Support for dock-mounted boat lifts - A watercraft lift is disclosed herein having an optional support for anchoring the lift to the floor of a body of water. Patent number: 5560735 Filing date: Nov 9, 1993 Issue date: Oct 1, 1996
46 Housing for a boat lift motor pulley and gear drive - A boat lift motor and drive assembly includes a rigid mounting plate supporting a boat lift motor. Patent number: 6021692 Filing date: Mar 17, 1998 Issue date: Feb 8, 2000
47 Portable, self-contained, self-adjustable craft lift and wet/dry storage system - The invention comprises an improved system for raising, lowering and wet/dry storing of a craft supported thereon. Patent number: 4732102 Filing date: Jun 5, 1987 Issue date: Mar 22, 1988
48 Personal watercraft lift - A lift is provided for a personal watercraft and includes two relatively elongated channel members each of a generally C-shaped transverse cross-section. Patent number: 5839851 Filing date: Apr 22, 1997 Issue date: Nov 24, 1998
49 Boatlift and movable canopy assembly - A boatlift assembly having a boat cradle portion and a canopy portion. Patent number: 6846129 Filing date: Aug 28, 2003 Issue date: Jan 25, 2005
50 Lift for watercraft - A boat lift having as its major components, a vertical rigid support column, a boat cradle and a carriage assembly interconnecting the boat cradle to the column support. Patent number: 5701834 Filing date: Aug 26, 1996 Issue date: Dec 30, 1997
51 Boating lift - A boat lift for attachment to the aft transom of a larger boat for lifting and lowering smaller water craft, utilizes a single double acting hydraulic cylinder to move a truck horizontally within an enclosure. Patent number: 6591770 Filing date: Oct 23, 2000 Issue date: Jul 15, 2003
52 Method of modifying a boat hull to obtain enhanced lift and rough water stability – Hydrofoil craft, particularly a method of economically modifying a conventional hull by means of foils to obtain enhanced lift and rough water stability. Patent number: 4896621 Filing date: Jul 29, 1988 Issue date: Jan 30, 1990
53 Patent number: 5046439 Filing date: Jul 24, 1989 Issue date: Sep 10, 1991
54 Planing pontoon boat - A pontoon boat comprising elongated flotation units of generally circular cross-section.
Patent number: 5184561 Filing date: Jul 30, 1991 Issue date: Feb 9, 1993
55 Non-linear tunnel hull boat - This tunnel-hull uses non-linear flow means to maximize tunnel lift efficiency, fuel economy, and directional stability. Patent number: 5474014 Filing date: Mar 16, 1995 Issue date: Dec 12, 1995
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