Celebrity Inventors
Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7328811 | Even reeving system A hoisting crane with an even reeving system having a substantially hollow vertical column, which has a foot, a top and a body disposed between the foot and the top. An annular bearing structure disposed around the substantially hollow vertical column. A jib connect... | 02/12/2008 |
| 7143532 | Marine backhoe dredge A marine backhoe dredge having a counterbalancing system that increases the hoisting capacity and hoisting speed of the backhoe. The device includes a backhoe mounted on a vessel and a counterbalancing system that includes an adjustable support structure, one or mor... | 12/05/2006 |
| 7028988 | Cable handling system A system or apparatus and method for retrieving cable from water during marine operations is provided that reduces damage to the cable from pulling forces during the retrieval. A pulling device distributes the forces and stresses all along the cable components. In o... | 04/18/2006 |
| 6932326 | Method for lifting and transporting a heavy load using a fly-jib The invention is a method for lifting and transporting a heavy load by using a heavy lift vessel with at least two heavy lift cranes adapted to operate simultaneously; mounting fly-jibs on the heavy lift crane to increase reach and height of the heavy lift crane; pi... | 08/23/2005 |
| 6607331 | Elevated crane support system and method for elevating a lifting apparatus A support structure for supporting a lift crane, and in particular to a lift crane jack-up structures, including rigs, platforms, barges, boats or the like, wherein the lift crane is positioned about a leg of the jack-up structure atop the jack-house. The... | 08/19/2003 |
| 5901864 | Movable crane apparatus A movable pedestal or kingpost type luffing crane that includes an upperworks, having a crane boom, rotatably mounted on a crane support. The crane support extends below the upperworks. The movable crane is constructed to be selectively maintained in or r... | 05/11/1999 |
| 5558037 | Semisubmersible vessel with forward-mounted crane A drilling tender (2) has a pair of laterally spaced buoyant hulls (4) with ballast chambers to permit the hulls to be moved between a submerged condition and a surface floating condition. Each hull (4) supports a row of columns (8). The columns (8) suppo... | 09/24/1996 |
| 5445094 | Working apparatus traveling through tank web frame of ship A working apparatus comprising openings formed as gondola access holes in tank web frame of a ship, a rail passed through the openings and secured to the tank web frame, a trolley adapted to travel along the rail, a hoist mounted on the trolley, and a gon... | 08/29/1995 |
| 4957207 | Extensible hoist for a natero vessel A relocating apparatus having a pivot connector for removably pivotally connecting the apparatus to a mast of a sailing vessel. The relocating apparatus also includes a telescoping sleeve assembly which supports a cable which can be connected to a load su... | 09/18/1990 |
| 4892202 | Deepwater extended hook travel attachment An apparatus for increasing the available hook raising and lowering distance is attached to a crane or other lifting structure having a boom and at least one lifting tackle utilizing at least one lifting line connected to a prime mover. The apparatus util... | 01/09/1990 |
| 4826023 | Crane for offshore platform and method of installing same A crane or derrick for use on an offshore platform comprising a base, a boom operatively connected to the base, and a sectioned kingpole secured to said base, the kingpole including a first kingpole section secured to the base and at least one additional ... | 05/02/1989 |
| 4673093 | Process for mooring a crane for heavy loads A process for mooring a crane having a crane jib which is hingedly connected to a slewing frame, luffing wires for luffing the crane jib in and out, and a guy mast hingedly connected with the top of the frame, the luffing wires passing about hoisting bloc... | 06/16/1987 |
| 4664269 | Crane for heavy loads, in particular offshore crane, and process for the mooring of a crane To permit an increase of the maximum permissible load of a crane for heavy loads, in particular an offshore crane, some of the luffing wires for luffing in and out the crane jib (4), are extended by guy wires (17); to avoid the disadvantage that the frame... | 05/12/1987 |
| 4652177 | Guide tower mounted crane for a jack-up platform A new and improved crane adapted to be rotatably mounted about the guide tower of a vertically movable leg of an offshore jack-up platform. In one form, the crane is mounted for rotation about the leg tower section on a bearing tube having a thrust bearin... | 03/24/1987 |
| 4635803 | Compact pedestal-mount crane A compact pedestal crane having a boom pivoted at a front edge of a main frame with a winch frame aligned with the boom and a plurality of winches mounted on the winch frame. An A-frame gantry is mounted on and extends above the winch frame and an engine ... | 01/13/1987 |
| 4606469 | Double link level luffing crane To enable the crane driver of a double link level luffing crane to adapt the height of his cab above the ground to the size of the ship to be loaded or unloaded, the drivers cab is mounted at the end of a separate cab link having a hinge connection with a... | 08/19/1986 |
| 4605132 | Lifting tool A lifting device for a marine vessel having a foot part that can be put on a flat support and an upper part adapted to pivot with respect to the foot part about a vertical axis and having at least one lifting arm and the lifting arm being extendible by a ... | 08/12/1986 |
| 4574964 | Breakaway bail A breakaway bail for a pedestal mount crane pivotally attached to the gantry by a pin extending through bushings secured to a pair of parallel plates with a spacer between the plates aligned with the bushings. A beam having an upright flange is secured be... | 03/11/1986 |
| 4565292 | Cargo handling apparatus with a cargo boom which can be swung in a swivel bearing between two kingposts In cargo handling apparatus with a cargo boom which can be swung between two kingposts, in which the cargo boom is provided at its upper end with an extension 1 which projects beyond the fittings of the main hoist, with a block fitting 2 for an auxiliary ... | 01/21/1986 |
| 4480757 | Collapsible frame support for pivotal boom on a portable crane A crane structure mounted on a transport vehicle, preferably a marine vessel, is disclosed. The crane structure includes a gantry structure mounted on a vertical tower structure and having boom portions protruding from the tower structure. Preferably, the... | 11/06/1984 |
| 4442943 | Floating crane stabilizer The crane assembly includes a generally annular float assembly having a boom operatively carried by the float assembly for movement in a generally vertical plane. A mechanism is provided for rotating the float assembly and the boom together. A spacing mem... | 04/17/1984 |
| 4417664 | Method and apparatus for mounting lift crane on offshore structures A method and apparatus for the mounting of lift cranes on jackup rigs, offshore platforms, and like offshore structures provides a first static bearing race portion which is mounted upon the jacking structure, for example, of a jackup rig surrounding the ... | 11/29/1983 |
| 4390315 | Fire fighting boom assembly for service vessel An extendable utility boom assembly for assisting fire-fighting operations performed from a semi-submersible service vessel upon an offshore platform is disclosed. The boom assembly is moved to operating position by means of a carriage assembly which is m... | 06/28/1983 |
| 4361104 | Twin hull semisubmersible derrick barge The derrick barge comprises a pair of laterally spaced elongated hulls having a plurality of upstanding columns spaced therealong supporting a working platform and a heavy duty derrick or crane in spaced relation above the hulls. The hulls bouyantly suppo... | 11/30/1982 |
| 4354608 | Motion compensator and control system for crane A motion compensation system for a crane hoist serves to assist the crane operator in safely lifting loads from the deck of a heaving work boat. The crane hook follows the motion of the load because a level of pre-tension is maintained on the line by use ... | 10/19/1982 |
| 4310277 | Apparatus for transferring cargo between relatively movable bodies An apparatus for transferring cargo between first and second bodies which are movable relative to each other where a hoist for raising and lowering cargo through a hoist line is mounted on one of the bodies includes a linkage for connecting the two bodies... | 01/12/1982 |
| 4285629 | Fire fighting boom assembly for service vessel An extendable utility boom assembly for assisting fire-fighting operations performed from a semi-submersible service vessel upon an offshore platform is disclosed. The boom assembly is moved to operating position by means of a carriage assembly which is m... | 08/25/1981 |
| 4271970 | Pedestal crane A pedestal crane of compact construction having a small turning radius is provided for use on board ships and/or off-shore drilling platforms. The crane has a dynamic load compensator so that it may absorb shock loads due to waves on the surrounding body ... | 06/09/1981 |
| 4221300 | Load-lifting crane The load-lifting crane has a jib mounted on its framework, the end of the jib having an extension connectable thereto, the ends of the jib and of the extension carrying blocks over which a run of the rope coming from the winch is adapted to be alternative... | 09/09/1980 |
| 4112863 | Barge-supported crane with hydraulically actuated ram corner lift means There is shown a barge-type ocean going vessel which on each corner has four hydraulically operated rams having foot portions on their downward ends. These rams are adapted to push downwardly to engage the bottom of the bay or harbor in which the barge is... | 09/12/1978 |
| 4011955 | Sea crane tiedown A sea crane having a rotatable upper works mounted on a cylindrical pedestal with the upper works having a tiedown to the pedestal including an annular collar on the pedestal and a ring-like structure suspended from the upper works beneath the collar and ... | 03/15/1977 |
| 3961713 | Single line davit A new and improved davit utilizing a single line which is mounted onto a rotating drum supported by opposing spaced frame members, which frame members are mounted onto a rotatable base, which rotatable base is rotated by a motordriven pinion in engagement... | 06/08/1976 |
