Did You Know...
...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 7377720 | Boat lift A boat lift supported completely from land adjacent to water in which a boat is to be operated for movement between storage and launching positions by the use of parallelogram linkage powered by pairs of hydraulic actuators arranged at opposite sides of the boat lif... | 05/27/2008 |
| 7325356 | Mechanical netting device A motor-driven mechanical netting device includes a net assembly, a slide assembly, a bracket, and a mount. The slide assembly is structured to support the net assembly and includes a guide bar. The bracket is structured to support the net assembly, the slide assemb... | 02/05/2008 |
| 7318385 | Boat lift The pontoon boat lift system comprises a plurality of lifts. Each lift is comprised of a channel that mounts to deck support members of the boat. One end of a leg is pivotally mounted to one end of the channel. A screw supported in the channel is turned by a connect... | 01/15/2008 |
| 7293521 | Hydraulic transom lift Devices, apparatus and systems for raising and lowering watercraft such as personal watercraft, jet skis, inflatables from transoms on boats, from bulkheads and from docks, and for raising and lowering other types of vessels. A single actuator such as a fluid operat... | 11/13/2007 |
| 7273019 | Seasonal, multi-use, multi-level structure transportable both by ground and water for use in a body of water A multi-use, multi-level structure can be installed in and removed from a body of water in a seasonal fashion. The structure has a lower level that includes a boat lift and an upper level that provides an entertainment area. The structure carries a ballast system fo... | 09/25/2007 |
| 7267066 | Boat lift The pontoon boat lift system comprises a plurality of lifts. Each lift is comprised of a channel that mounts to deck support members of the boat. One end of a leg is pivotally mounted to one end of the channel. A screw supported in the channel is turned by a connect... | 09/11/2007 |
| 7143868 | Underdeck pontoon lift system An underdeck pontoon lift system for supporting pontoons of various sizes in a stable manner. The underdeck pontoon lift system includes a base structure, a plurality of front lifting jacks and a rear lifting jack pivotally attached to the base structure, a support ... | 12/05/2006 |
| 7066776 | Vessel provided with a propeller tunnel Vessel provided with a propeller protruding beyond the hull fitted in a propeller tunnel that extends as far as the stern of the vehicle. The surface area of the propeller tunnel recessed in the hull in a direction perpendicular to the longitudinal axis of the vesse... | 06/27/2006 |
| 7066683 | Hydraulically operated low profile boat lift utilizing at least two pilings An assembly for lifting a boat locatable adjacent a dock requires only two elongate vertically disposed pilings each having a lower end portion mounted into the floor of a body of water near the dock and an upper end portion extending upwardly adjacent the dock. A l... | 06/27/2006 |
| 7021861 | Low profile floating lift for watercraft A floating low profile watercraft lifting apparatus comprises a buoyant support apparatus and a watercraft lift attached to the buoyant support apparatus. Embodiments of the lift have first and second cantilever arms pivotally mounted to a base at offset pivot point... | 04/04/2006 |
| 6955519 | Davit system for lifting boats, jet skis, motorcycles and the like A davit system includes an elongate base having a straight part and a leading part that is angled downwardly relative to the straight part at a predetermined angle. An elongate boom arm is slideably disposed in a hollow interior of the elongate base. The boom arm is... | 10/18/2005 |
| 6953003 | Watercraft landing cradle A parallelgram arrangement of linkages interconnect a stern ramp frame with a plurality of parallel rails vertically adjusted to positions above the ramp frame by actuators for reception and maintenance of a watercraft thereon with minimized vibration, further reduc... | 10/11/2005 |
| 6938572 | Swim lift platform A swim lift platform using hydraulic force to lift a swimmer between positions in which the platform is above water level to a submerged position. The movement is under the control of a swimmer occupying the platform. ... | 09/06/2005 |
| 6935807 | Device for maintaining tension on lift cables A device for preventing the tangling or crossing of lift cables by maintaining the tension on the lift cables. When the tension is removed from lift cables (4) by placing a boat in a water body, the cables (4) become slack and can cross and/or tangle a... | 08/30/2005 |
| 6823809 | Floating watercraft lift apparatus and method The present invention is generally directed to a floating watercraft lift capable of raising and lowering a watercraft, and more particularly to a floating watercraft lift. In one embodiment, the watercraft lift includes a pair of longitudinally extending and approx... | 11/30/2004 |
| 6769839 | Stern-on mooring boat lift In a lift for mooring a boat stern-on, a pair of horizontally spaced guide members is fixed to the sea wall. A frame is fixed to a pair of substantially parallel hydro-pneumatic buoyancy tanks to provide a flotation platform for supporting the hull of the boat. The ... | 08/03/2004 |
| 6767004 | Replacement motorized drive unit for boat lifts A drive motor arrangement for replacing manual drives on an existing boat lift winch shaft comprises a worm gear box with a worm driven by an integrally mounted motor on the worm gear box. A worm gear is mounted on a tubular cross shaft extending outwardly on opposi... | 07/27/2004 |
| 6752096 | Unitary plastic boat lift buoyancy tank A plastic rotationally molded polyethylene buoyancy tank for boat lifts allows connection of steel to lengthwise grooves molded into each side of the buoyancy tank. Preferably, a plastic bulkhead is formed within the tank during its molding process. A segment of fra... | 06/22/2004 |
| 6598549 | Boat lift A boat lift includes a base mounted on land adjacent to a body of water, a swinging frame mounted to the base by a first swinging coupling, a boat-supporting frame mounted to the swinging frame by a second swinging coupling, and an actuator for causing th... | 07/29/2003 |
| 6591770 | 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. Cables fixed to the truck cause movement of v... | 07/15/2003 |
| 6584922 | Portable boat lift A portable boat lift for removal of a boat from a boat trailer comprising two elongated free-standing upright frame members and an elongated crossmember which is pivotally connectable at one end thereof to one selected aperture of one of the frame members... | 07/01/2003 |
| 6547485 | Stern-on mooring boat lift In a lift for mooring a boat stern-on, a pair of horizontally spaced guide members is fixed to the sea wall. A frame is fixed to a pair of substantially parallel hydro-pneumatic buoyancy tanks to provide a flotation platform for supporting the hull of the... | 04/15/2003 |
| 6494155 | Three piling boat lift The cost of building a five thousand pound boat lift is substantially cut in half by using three pilings instead of four. The three pilings include a pair of outboard pilings and a single inboard piling. A boat-supporting cradle includes a leading frame m... | 12/17/2002 |
| 6470816 | Watercraft lift assembly The present invention is directed to novel watercraft lift assemblies comprising, in certain embodiments, single motor and dual motor/winch assemblies secured to the dock-side portion of the support structure. The present invention does not require the us... | 10/29/2002 |
| 6318929 | Low profile lift for watercraft A low-profile watercraft lift having first and second cantilever arms pivotally mounted to a base at offset pivot points for use in shallow water. The lift includes an actuator connected to the first and second cantilever arms and operable to move the fir... | 11/20/2001 |
| 6257159 | Apparatus for raising and lowering boats in water Apparatus for raising and lowering boats in water. The apparatus consists essentially of at least one float that is attached to the hull of the boat and is guided along the surface of the hull of the boat at least partially below water level when a force ... | 07/10/2001 |
| 6076478 | Apparatus for raising and lowering boats Apparatus for raising and lowering boats in water. The apparatus consists essentially of at least one float that is attached to the hull of the boat and is guided along the surface of the hull of the boat at least partially below water level when a force ... | 06/20/2000 |
| 5988941 | Boat lift cable lock apparatus A boat lift locking apparatus is disclosed for releasably fastening a cable to a structural component of a boat lift. The apparatus includes a bracket secured to the structural component and having a channel, which has a relatively wide portion and a rela... | 11/23/1999 |
| 5941660 | Modular watercraft support structure A watercraft support structure formed from a plurality of rigid platforms that are coupled together by the use of linking pins or insertion plugs. Each platform having independent buoyancy formed integral therein for support of most any size watercraft. T... | 08/24/1999 |
| 5921195 | Apparatus for coastal navigation and self rescue The present invention provides adjustable vessel draft by controlling buoyancy and making navigation possible in both shallow and deep waters without changing the total vessel weight or its given payload. The present invention also provides necessary deep... | 07/13/1999 |
| 5868514 | Small water vehicle lift A water vehicle lift includes a winch which is operable to extend and retract an elongated flexible cable to lower and raise a platform on which a small water vehicle may rest. The winch is preferably mounted on a piling with the platform moving up and do... | 02/09/1999 |
| 5826528 | Floating boat lift with retracting walkway A floating boat lift for raising a boat out of and securing same above a body of water. This boat lift consists of two float supported frames which are held parallel and separated by two parallel lift bars which are held parallel and separated by a pair o... | 10/27/1998 |
| 5795098 | Modular watercraft support structure A watercraft support structure formed from a plurality of rigid platforms that are coupled together by the use of linking pins. Each platform having independent buoyancy formed integral therein for support of most any size watercraft. The structure includ... | 08/18/1998 |
| 5772360 | Topless watercraft lifting apparatus with a differential gearing system A watercraft lifting apparatus utilizing a lifting beam vertically movable within a frame preferably including pile members defining a watercraft receiving slot. The lifting beam is vertically movable to contact preferably the lower surface of the watercr... | 06/30/1998 |
| 5755529 | Boat lift A boat lift for lifting a boat above the water adjacent to a wharf on a water bed comprises a wharf attachment mounted to the wharf above the water; a frame having a wharf end portion hinged adjacent to the wharf attachment; a footing seated on the water ... | 05/26/1998 |
| 5749313 | Watercraft lift A watercraft lift of the type which is connected to a mooring location comprises a mounting and a guide. The guide mounts an elongate reciprocating member which is raised and lowered by means of a winch. At the lower end of the reciprocating member is a s... | 05/12/1998 |
| 5701834 | 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 allowing the boat cradle to travel up and down the length of the support column to lif... | 12/30/1997 |
| 5655850 | Floating dock and boat lift A floating boat lift having 2 side support frames and a front frame with a central region for docking a boat therein with flotation devices attached to the side support frames, flotation devices having sufficient flotation to floatingly suspend the boat l... | 08/12/1997 |
| 5628583 | Small water vehicle lift A water vehicle lift includes a winch which is operable to extend and retract an elongated flexible cable to lower and raise a platform on which a small water vehicle may rest. The winch is preferably mounted on a piling with the platform moving up and do... | 05/13/1997 |
| 5613462 | Lifting device A novel lifting device for small craft in which the mechanism includes an hydraulic pump and an hydraulic cylinder pivotally mounted on a first horizontal shaft of a support attached to a boat or stationary surface. A first arm is mounted on the first sha... | 03/25/1997 |
