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| Number | Title | Issue Date |
| 7896178 | Industrial vehicle counterweight system Embodiments of the present invention generally relate to a pipelayer and a method for of loading a pipelayer or excavator for transportation. One embodiment includes a method for transporting a pipelayer or excavator from a first work site to a second worksite via a... | 03/01/2011 |
| 7658293 | Installation device for counterweight A counterweight installation device includes: a weight support unit provided on a rear end of a body frame of a construction machine; a weight mounting unit disposed on a counterweight; a pin member for mounting the counterweight adapted to move between a first posi... | 02/09/2010 |
| 7611021 | Crane vehicle The present invention relates to a crane vehicle having a base plate fastenable to its undercarriage to receive ballast and two hoisting means vertically fastened to the part of the superstructure projecting outwardly in the opposite direction to the boom, said hois... | 11/03/2009 |
| 7467722 | Counterweight for heavy equipment An adjustable counterweight for use on construction vehicles that includes a body having a first section, a central section adjacent to the first section and a second section adjacent to the central section, wherein the first section and the second section each defi... | 12/23/2008 |
| 7389888 | Mobile crane with ballasting The present disclosure relates to a mobile crane comprising an undercarriage and a superstructure arranged in a revolving manner thereon with a device for the reception of ballast. In accordance with the present disclosure, the device for the reception of ballast co... | 06/24/2008 |
| 7370767 | Mobile crane The embodied mobile cranes have a travelling base structure that allows for travel of the crane over a surface. The cranes have a revolving superstructure mounted on the base structure and a boom and a backmast. The boom and backmast are each hinged about an associa... | 05/13/2008 |
| 7290671 | Crane A crane performs a self-assembling/disassembling operation using a hoisting winch, a hoisting rope, and a hanging hook, and includes a sheave device for guiding the hoisting rope on an upper portion of a lower boom. The sheave device includes a first sheave on a rea... | 11/06/2007 |
| 7243474 | Methods and apparatus for forming and placing generally horizontal structures One embodiment of the present invention provides for a method of placing a concrete structure in a generally horizontal position. The method includes building the concrete structure in an essentially vertical position, the concrete structure being defined by a first... | 07/17/2007 |
| 7213716 | Crane The within invention concerns a crane with a superstructure that rotates on a vertical axle, a boom coupled to the superstructure in such manner as to luff on a horizontal axle, luffing equipment for luffing the boom, and an operating ballast that counteracts the mo... | 05/08/2007 |
| 7178682 | Traveling crane The invention pertains to a traveling crane consisting of a superstructure that can be turned about an upright axis and carries a crane jib with hoisting means, a truck with a tracklaying gear that carries the superstructure and a supporting device with several outr... | 02/20/2007 |
| 7168740 | Structure of mounting weight in forklift truck A structure of mounting a weight in a forklift truck which has a frame and the weight that is to be connected and fixed to the frame by a bolt and a nut includes a first hole, a second hole, a first fitting part and a second fitting part. The first hole is formed th... | 01/30/2007 |
| 7165691 | Counterweight attaching and detaching apparatus for crane In a counterweight attaching and detaching apparatus for a crane, the length of a suspension member is adjusted by an extendable member and links because the distance provided between the peak of a gantry and an upper surface of each of weights when the gantry is su... | 01/23/2007 |
| 7093729 | Ballasting device for a crane The device combines ballast blocks (3) that can be stacked onto a base frame of the crane, and a gripper (2) for handling these blocks, the gripper being designed to be connected, during use, to a handling means. This device comprises means of nonperma... | 08/22/2006 |
| 6631814 | Crane vehicle A crane vehicle is provided with a carrier and a rotating deck pivotable around a vertical axis thereon on which a boom swivellable around a horizontal axis is supported. Pallets are mounted at the projecting outer end of the rotating desk at both sides t... | 10/14/2003 |
| 6422408 | Method and device for mounting the masthead of tower cranes The invention relates to the mounting of the revolving part of a tower crane, at the top of the mast. A first assembly, formed by the counterjib (8), its tie rod (19) and a rear part (22) of the jib bearer (5), made in two separable parts, is pre-built on... | 07/23/2002 |
| 6250484 | Counterweight for monorail hoists A counterweight for a monorail hoist. The monorail hoist includes a single support beam and a suspended hoist assembly which is supported for movement along the support beam. The hoist assembly includes a support member which is transverse to the support ... | 06/26/2001 |
| 6131751 | Counter weight handling system and boom parking device A crane having an upper works rotatably mounted on a lower works and a boom pivotally mounted on the upper works, wherein the crane further comprises an apparatus and method for lifting, positioning, and assembling a counter weight to the upper works. The... | 10/17/2000 |
| 6089388 | Mobile crane A counter-jib on which ballast can be hung and a hydraulic ram which can swivel said counter-jib both being falcrumed on a supporting frame. The frame is bolted at at least two connecting points to the rotating deck in such a way that after the creation o... | 07/18/2000 |
| 6065620 | Movable sheave assembly for a crane A convertible crane with a movable sheave assembly which is operable in two distinct positions. In the first position, the sheave is adjacent the body of a crane to enable it to operate in relatively restricted space without interference from obstacles ad... | 05/23/2000 |
| 5941401 | Counterweight handling system for ring supported cranes A ring-supported lift crane is provided with a counterweight handling system to facilitate repositioning of the crane. The ring-supported crane includes a ring, a crane upper works and a crane lower works, a boom supported on rollers on the ring and a cou... | 08/24/1999 |
| 5833268 | Counterweight hoisting mechanism The invention provides a self-mounting counterweight device which is mounted to one end of the chassis frame of the vehicle. The counterweight is U-shaped having two vertical sides and an outward wall defining an internal enclosure. The counterweight incl... | 11/10/1998 |
| 5615784 | Crane counterweight installation and removal apparatus A counterweight installation and removal apparatus for a truck-mounted crane includes a counterweight having a bottom surface, a plurality of rollers attached to either the bottom surface of the counterweight or to a crane carrier deck, and at least one i... | 04/01/1997 |
| 5598935 | Frame structure for lift crane machinery A lift crane having enhanced lifting capability includes a self-installing counterweight system which utilizes actuators forming part of a counterweight assembly for raising the counterweight to an operative position with respect to the rear of the crane.... | 02/04/1997 |
| 5524777 | Lifting apparatus for a transfer device A lifting apparatus mountable on a rotatable platform for transferring counterweights. The lifting apparatus includes a lifting element having an upper, stationary cage, and a lower cage rotatable relative to the upper cage, each being composed of a tube ... | 06/11/1996 |
| 5484069 | Process for self-disassembling a crawler crane A method and apparatus for self-assembling and self-disassembling a large capacity crawler crane. The method uses the load hoist line of a crane to remove the equalizer from the boom. The method also uses a hydraulic cylinder to support, raise and lower t... | 01/16/1996 |
| 5265741 | Boom extension for gantry cranes An apparatus and method for providing a boom extension for retractable booms of gantry cranes which does not require lowering the boom during attachment of the extension, or increasing the lift capacity of the boom hoist machinery, nor does the boom exten... | 11/30/1993 |
| 5222613 | Pivotally-mounted reeved counterweight system A pivotally-mounted reeved counterweight system for a counterbalance-type crane which includes a wheeled counterweight carriage supporting a counterweight. A yoke provides the coupling means pivotally connecting the carriage and the rearward end of the pl... | 06/29/1993 |
| 5199583 | Crane truck The invention relates to a crane truck with a drivable undercarriage and a superstructure supported on the undercarriage to be rotatable by means of a slewing rim, the superstructure having a counterweight, which is movable by an elevating mechanism consi... | 04/06/1993 |
| 5141195 | Counterweight removal device A counterweight handling device for construction equipment such as cranes in which a counterweight can be elevated to a predetermined height by using particulate hydraulic components then supported on a mounting frame. The counterweight may be supported b... | 08/25/1992 |
| 5005714 | Crane, in particular a large mobile crane A crane, particularly a large mobile crane, including an undercarriage (1); a revolving joint (3) on the undercarriage (1); and a superstructure on the revolving joint (3). The superstructure includes a central part (5) rotatably mounted on the revolving ... | 04/09/1991 |
| 4995518 | Detachable floating counterweight A portable crane having an outwardly-extending counterweight arm and detachable counterweight for detachment therefrom, for transport of said crane separate from transport of the counterweight. The counterweight has a base which may be extended and retrac... | 02/26/1991 |
| 4953722 | Crane and lift enhancing beam attachment with moveable counterweight A crane and an attachment comprising a counterweight support beam including a plurality of connected segments movable relative to each other, and having a fore end adapted to be connected to the crane upper works, and an aft end rearward from the rear por... | 09/04/1990 |
| 4782962 | Back packable portable unit A portable, backpackable crane lift involving a retractable boom, boom cable, winch and winch cable mounted to a wheeled frame with extendable axles all which fold into a compact unit. A shoulder harness apparatus which attaches to the folded unit for car... | 11/08/1988 |
| 4711358 | Counterbalancing type crane A counterbalancing type crane including a crane body provided with a travelling unit and a swing unit, a tiltable boom for hanging a load through a hoisting line, a tiltable mast, a boom guy line disposed between an upper portion of the mast and an upper ... | 12/08/1987 |
| 4601402 | Steerable concentric ring segment supported lift crane Front and rear pairs of crawler assemblies are provided for supporting concentric ring segments disposed forwardly under the boom and rearwardly under the counterweight so the crane can travel under load and swing through at least a partial horizontal arc... | 07/22/1986 |
| 4590718 | Portable, adjustable structure and method of erecting same A portable, adjustable structure for supporting an equipment unit at a distance above a support surface has a lower tower structural member placed on the support surface. Pivot support structural members are affixed to the lower tower structural member in... | 05/27/1986 |
| 4579234 | Self-erecting mobile crane A self-erecting traveling crane having a machinery platform rotatably mounted with respect to a carbody utilizes a concentric support ring, a boom foot carrier pivotably mounted to the platform and rolling on the support ring, and a counterweight carrier ... | 04/01/1986 |
| 4540097 | Crane with outboard counterweight carrier Disclosed is a crane wherein a trailer-like counterweight carrier has a horizontal motion transmitting connection with a platform which is swivelably mounted on a crane base and which supports the boom and the mast of the crane. Guy connections between th... | 09/10/1985 |
| 4508232 | Counterbalanced crane structure A windlock for selectively preventing relative pivotal movement between a mobile platform and a horizontal interconnecting stinger at the base of an elevated crane. The stinger is normally interconnected to one load platform for relative pivotal movement ... | 04/02/1985 |
| 4402413 | Counterweight arrangement A counterweight arrangement for mobile vehicles including a pair of transversely spaced support members having notches formed therein. The counterweight has a pair of transversely spaced rod members secured thereto which are selectively received in the no... | 09/06/1983 |
