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| Number | Title | Issue Date |
| 7523834 | Harvester crane The invention relates to a harvester crane, which includes a set of booms, which are attached by means of a pedestal and rotating device to a chassis machine, in which the set of booms includes a main boom, which is pivoted at its lower end by a lower pivot to the p... | 04/28/2009 |
| 7357263 | Articulating jib An improved boom-mounted jib unit (10) is provided having an increased range of motion and work envelope, which allows a user to lift heavier loads an otherwise work with less jib interference, as compared with prior jib units. The jib unit (10) includ... | 04/15/2008 |
| 7258242 | Mobile crane boom having an autarchic hydraulic power unit mounted thereon The present invention relates to a mobile crane boom having a self-sufficient energy supply arranged on it for supplying hydraulic energy to at least one hydraulic load arranged on the mobile crane boom. The supply of the hydraulic load arranged on the mobile crane ... | 08/21/2007 |
| 7163112 | Material transloading equipment The invention concerns a material transloading equipment unit with an undercarriage and a turntable connected with this undercarriage by means of a track ring, on which an arm that can be pivoted by means of at least one hoisting cylinder is pivot-mounted. According... | 01/16/2007 |
| 7134562 | Trailer-mounted vibratory apparatus A trailer-mounted crane apparatus includes a trailer supported from a ground surface on at least two wheels. A hydraulically operated crane arm is mounted to the trailer and is extendable outwardly. A crane hydraulic power unit is mounted to the trailer and supplies... | 11/14/2006 |
| 7077617 | Vehicle equipped with lift device and lift device A vehicle is provided having a lift device comprising: a carrier; a swing arm with one end fixed to a shaft and another end coupled the carrier; and a drive for swinging the swing arm on top of the vehicle. The carrier is lowered from the top of the vehicle at an in... | 07/18/2006 |
| 6966448 | Trailer-mounted crane apparatus A trailer-mounted crane apparatus includes a trailer supported from a ground surface on at least two wheels. A hydraulically operated crane arm is mounted to the trailer and is extendable outwardly. A crane hydraulic power unit is mounted to the trailer and supplies... | 11/22/2005 |
| 6860396 | Loader A loader includes a base equipped with a turning device, for attaching the loader to a carrier machine, a telescopic main boom including a frame pivoted on the base, and a telescopic component arranged to move linearly in relation to it and pivoted on the base, a hi... | 03/01/2005 |
| 6550625 | Boom arrangement for work machine A boom arrangement for moving a work head, which boom arrangement comprises a pillar mounted on a bearing around the vertical axis in a rotating manner, with mounting and rotational members; a lifting boom; a transfer boom; a lifting cylinder arranged bet... | 04/22/2003 |
| 6491174 | Inverted pedestal crane An inverted pedestal crane has a base mountable to an underside of a horizontal support structure, such as for example a rig floor. A crane pedestal extends downwardly from the base, and a boom connects pivotally to the pedestal. The pedestal and the cran... | 12/10/2002 |
| 6488161 | Boom mechanism A boom mechanism that is cooperable with a lift vehicle or base structure includes a tower boom and an upper boom liftable in a dependent relationship by a single lifting mechanism. The tower boom and the upper boom are respectively pivotally secured to a... | 12/03/2002 |
| 6390312 | Lift structures and lifting arrangement therefor Load-bearing apparatus, such as a boom lift, including first and second arm portions, in which at least one element, such as a hydraulic cylinder, is provided for selectively imparting a predetermined dependent relationship as well as a predetermined inde... | 05/21/2002 |
| 6364142 | Hydraulic oil feed plunger cylinder A crane vehicle comprising a telescopic main boom which can be hydraulically configured by means of an assembly comprising a plunger cylinder and to which a derrick mast can be secured is provided with a plunger cylinder configured as a supply and dischar... | 04/02/2002 |
| 6193087 | Two arms system Unit cranes consist of three jointed arms (13-15), the middle arm (14) being in the form of a polygon comprising a number of units jointed together, the mobility of the units being arranged by influencing the units internally. The object of the invention ... | 02/27/2001 |
| 6129226 | Vehicle mounted mini hoist In connection with a pair of pivotally connected articulating booms there is a pair of double-acting hydraulic cylinders which control the vertical pulling of well pipe, such that a boom assembly in conjuction with an improved winch assembly willgenerate ... | 10/10/2000 |
| 6079577 | Loader A loader composed of: a turntable (2) for connecting said loader to a machine base; a mounting plate (2a) connected to the turntable; a main arm (3) having a first end connected to the turntable; a secondary arm (4) articulated to the main arm (3); a lift... | 06/27/2000 |
| 5993137 | Adjustable hoist for use with vehicle A hoist for raising and lowering objects may be attached to a vehicle. The hoist includes a support column and a boom attached thereto; the boom can be raised and lowered by a hydraulic double action cylinder or otherwise. Both the support column and cyli... | 11/30/1999 |
| 5944204 | Hydraulic boom compensation system for aerial devices An upper boom compensation system for an aerial device having an articulating boom assembly. The lower boom is raised and lowered by a special double cylinder having two pistons and a common piston rod. A hydraulic circuit is arranged to transfer fluid be... | 08/31/1999 |
| 5725112 | Crane A portable crane for use on a pickup or utility truck is disclosed. The crane has a mounting base rotatably mountable to a tray of the motor vehicle. The crane includes a post connectable to a base frame which is welded to the mounting base. A lifting arm... | 03/10/1998 |
| 5607071 | Crane, especially a track-bound mobile crane A crane, particularly a track-bound mobile crane, having a luffing jib located on a vehicle frame so as to be slewable upward and downward around a horizontal axis and rotatable around a vertical axis. In order to transport long and heavy loads in narrow ... | 03/04/1997 |
| 5557526 | Load monitoring system for booms A system for and method of monitoring the operation of a boom are disclosed. A first parameter is sensed, the first parameter being indicative of a load on a first boom component. It is determined from the sensed first parameter when a load supported by t... | 09/17/1996 |
| 5402898 | Crane having boom rest A truck mounted crane assembly includes a turntable lock, a boom rest which interacts with the piston and cylinder device, and a swing away hoist mount. The turntable lock includes a pin which is manually retractable upon rotation of a handle from a posit... | 04/04/1995 |
| 5359516 | Load monitoring system for booms A system for monitoring the operation of a boom is disclosed. The boom has at least one boom section, with each boom section being supported by an actuator assembly such that a load supported by a particular actuator assembly is representative of operatio... | 10/25/1994 |
| 5211245 | Vehicle mounted aerial lift An aerial lift for use with a vehicle for positioning the nozzle on the outer end of an upper boom coupled at its inner end to the outer end of a lower boom with selectively raising and lowering the lower boom in a plane from and above the horizontal and ... | 05/18/1993 |
| 5211526 | Mobile crane A modular, readily assembled crane for mounting on a vehicle trailer hitch drawbar and reconfigurable for stand alone, rollabout operation. A receptacle rotatably supports a vertical column, boom arm, and lifting device, which may be a hydraulic jack or a... | 05/18/1993 |
| 5106255 | Posture adjusting mechanism of cargo handling device for use in cargo trucks A posture adjusting mechanism according to the present invention is used for a cargo handling device for a cargo truck in which an arm member is mounted in such a manner that it can swivel about a vertical shaft provided on an upper end portion of a pole ... | 04/21/1992 |
| 5100278 | Railroad locomotive crane boom apparatus An improved locomotive crane boom generally indicated at 10 has of a first member 11, second member 12, and third member 13 each pivotally connected at various pivot points to one another and to locomotive crane 14. A series of pistons and cylinders, 19, ... | 03/31/1992 |
| 5087168 | Tilting device for backhoe A device is provided for tiltably connecting the boom section of a backhoe unit to the dipper section of the backhoe unit. The device includes a first member mountable to the dipper section so as to be rotatable about a first pivot axis transverse to the ... | 02/11/1992 |
| 5064334 | Wheel clamp An apparatus for lifting a large tractor wheel includes a frame defined by feet and a post, which carries a bracket for rotation around the longitudinal axis of the post; a boom pivotally connected at one end to the bracket for rotation around a horizonta... | 11/12/1991 |
| 4969562 | Apparatus for suppressing quaky movements of mobile type crane An apparatus for supressing vibration and quaky movements of a pivotally mounted boom on a mobile crane. The boom is supported for pivotal movement by a hydraulic cylinder which is subjected to abrupt forces when the crane is in motion. A hydraulic circui... | 11/13/1990 |
| 4969789 | Machine for handling modular building components An apparatus for handling and positioning building components of the type which are used in retaining walls or the like includes a vehicular support having an articulatable boom extending therefrom, and a gripper assembly at the end of the boom. The vehic... | 11/13/1990 |
| 4775287 | Adjustable boom An earth moving or grading machine having a first boom mounted on the base structure. A second boom is telescopically mounted to be received by the first boom and a third boom is mounted to the outermost end of the second boom. Articulated connecting mean... | 10/04/1988 |
| 4710090 | Hydraulic hoist particularly for mounting on pick-up truck beds or the like A hoist is provided for facilitating the loading and unloading of a vehicle. The hoist comprises a mounting for mounting to an underlying structure, an upright post connected to the mounting, a column rotatably seated on the post and having a boom pivotal... | 12/01/1987 |
| 4700852 | Recovery vehicle device The invention relates to a device for a recovery vehicle of the type comprising rear, lowerable supporting stifflegs (5) and a crane boom (1) which turns about a horizontal axis (11) and has a boom foot (2) and a folding boom (3) with an extension (4) the... | 10/20/1987 |
| 4700851 | Lightweight, self-powered, transportable crane assembly A lightweight, self-powered, transportable crane assembly is disclosed which includes a frame that can be selectively coupled to and uncoupled from the bed of a transport vehicle or carrier, such as a pick-up truck or trailer. The frame assembly also incl... | 10/20/1987 |
| 4693384 | Excavator boom derrick An articulated arm-type excavator machine has a boom which has a trolley track affixed onto its underside. A trolley member from which a pulley block can be suspended travels along this track, and is urged into an operator-selected position by a double-ac... | 09/15/1987 |
| 4674638 | Control for deflection reduction means A rough terrain vehicle comprises a vehicle chassis, wheel assemblies enabling vertical and angular deflection of the chassis relative to the terrain during vehicle movement, a telescopic crane boom pivotally mounted on the chassis and capable of limited ... | 06/23/1987 |
| 4658970 | Deflection reduction module for boom hoist cylinder of mobile crane A mobile crane comprises a vehicle chassis mounted on balloon tires, a crane boom pivotally mounted on the chassis, and a double-acting boom hoist cylinder connected between the chassis and the boom for raising and lowering the boom. As the mobile crane t... | 04/21/1987 |
| 4653656 | Double center luffing crane A load lifting crane for raising the load at a site and moving the load in a substantially horizontal direction to a remote site where the load is lowered. The crane includes a base support member which has a pivotally supported vertically extending mast ... | 03/31/1987 |
| 4646875 | Articulated boom structure This invention relates to an articulated boom structure (10) which comprises a pedestal (11) mounted for rotation on a main frame (12) mounted in turn on a vehicle (13), with a first boom (14) articulately mounted on the pedestal (11) and adapted to be ra... | 03/03/1987 |
