Matches 1 - 25 out of 25


Match Document Document Title
US20130319964 Mobile Lift Crane with Variable Position Counterweight  
A mobile lift crane includes a carbody; a rotating bed; a boom; a moveable counterweight unit; at least one linear actuation device; and at least one arm pivotally connected at a first end to the...
US20100116766 MOBILE LIFT CRANE WITH LIFT ENHANCING ATTACHMENT  
A mobile lift crane includes a central crane unit, a boom unit and a counterweight unit. The central crane unit has a carbody, moveable ground engaging members and a rotating bed mounted to the...
US20130153525 Mobile Lift Crane with Variable Position Counterweight  
A mobile lift crane includes a carbody; a rotating bed; a boom; and a moveable counterweight unit. The crane is configured such that the counterweight unit is never supported by the ground other...
US20130020273 STEPLESS LUFFING MECHANISM FOR SUPER-LIFTING COUNTERWEIGHT OF CRAWLER CRANE AND OPERATING METHOD THEREOF  
A stepless luffing mechanism for the super-lifting counterweight of a crawler crane, and an operating method thereof. The luffing mechanism includes a main luffing mast, a lifting oil cylinder, a...
US20130112641 GRAVITY POWERED BALANCING SYSTEM  
A balance assist system includes a support structure, an assist device, a variable balancing system, and a balancing cable. The variable balancing system is configured for moving a mass in a...
US20080264886 Telescopic Camera Crane  
A telescopic crane for supporting a camera or the like comprising a telescopic support, with at least one arm (4) extending outward from one end (2), a counterweight means (6) extending from the...
US20110192815 MOBILE CRANE HAVING COUNTERWEIGHT  
Provided is a mobile crane capable of adjusting a counterweight height with no use of a costly hydraulic cylinder. The mobile crane comprises a lower propelling body, a upper slewing body, a boom...
US20110155681 Counterweight Suspension Device and Mobile Crane  
A counterweight suspension device includes: a pair of suspension cylinders that suspends a counterweight, and that are hung from a first and a second hanging points provided separately in a left...
US20100072156 Boom Hoist Transportation System and Crane Using Same  
A mobile lift crane includes a carbody having moveable ground engaging members; a rotating bed rotatably connected to the carbody such that the rotating bed can swing with respect to the ground...
US20110084044 Lightweight High-Performance Pipelayer  
A pipelayer providing higher lifting capacities without adding weight or size to an undercarriage or boom of the pipelayer is disclosed. The pipelayer is designed and sized to have a maximum...
US20130270209 VEHICLE CRANE WITH DECOUPLABLE COUNTERWEIGHT ASSEMBLY  
A vehicle crane includes a carbody, a turntable rotatably mounted on the carbody, a jib mounted on the turntable that can be tilted about a horizontal axis, and a counterweight assembly mounted on...
US20130140258 BALLAST WAGON FOR A DERRICK CRANE  
The present disclosure relates to a ballast wagon for a derrick crane. The ballast wagon has two wheeled portions which each have at least two wheelsets with a respective one wheel. The two...
US20100000954 PIPE-LAYING MACHINE  
A pipe-laying machine includes a self-propelled tracked vehicle, on one side of which is fitted a crane designed for lifting and laying pipes. The machine is also fitted with a counterweight...
US20090272708 Modular Counterweight Carriage for Cranes, in Particular for Large Crane  
A large mobile crane includes a revolving superstructure, a main boom hinged to the superstructure, and a derrick boom hinged to the superstructure. A modular counterweight system includes a...
US20110247992 MOBILE LIFT CRANE WITH VARIABLE POSITION COUNTERWEIGHT  
A mobile lift crane includes a carbody; a rotating bed; a boom; a moveable counterweight unit; at least one linear actuation device; and at least one arm pivotally connected at a first end to the...
US20140076836 Crane with Automatic Counterweight Balancing Device and Method of Arranging Counterweight Thereof  
The present invention provides a crane with an automatic counterweight balancing device and a method of arranging counterweight thereof. The crane includes a main body and a counterweight device...
US20120241402 FORMULATIONS FOR C-MET KINASE INHIBITORS  
A pipelayer providing higher lifting capacities without adding weight or size to an undercarriage or boom of the pipelayer is disclosed. The pipelayer is designed and sized to have a maximum...
US20090134106 LIFTING DEVICE  
A lifting device having a frame, a lifting member supported by the frame, and a hydraulic pump and motor supported to the frame. The hydraulic pump and motor are operatively connected to the...
US20140069883 SYSTEM FOR REARRANGING THE COUNTERWEIGHT OF A CRANE OPERATION  
A system (19; 19, 35) for reducing an amount of a counterweight for a crane comprises a crane (2) having a founding structure (3) being disposed on a base (20), a coupling unit (4), and a...
US20110049075 Crane  
The present disclosure relates to a crane with a travelling undercarriage, an uppercarriage rotatably mounted on the same with a luffing boom and derrick boom arranged on the same, and a ballast...
US20110031203 HYDRAULIC SHUTOFF CONTROL VALVE SYSTEM FOR A CAMERA CRANE  
A telescopically extendible camera crane arm includes a second section telescopically movable within a first section. A first actuator extends the second section and a second actuator retracts the...
US20160332850 METHOD OF OPERATING A CRANE, AND CRANE  
A crane may include a travelable undercarriage, a superstructure rotatably supported thereon with a luffable boom system arranged thereon and a derrick boom, with an auxiliary crane being used as...
US20160280517 Mobile Crane  
The invention concerns a mobile crane with a drivable undercarriage and a rotatable superstructure mounted thereon, where on the one side there is pivoted a swiveling jib, and on the other side a...
US20160221804 Ballast Apparatus and Crane, in particular Crawler-Mounted Crane  
The present invention relates to a ballast apparatus for attaching to the rear of a crane superstructure, in particular of a crawler-mounted crane, having a base plate and a plurality of stackable...
US20160052755 METHOD FOR OPERATING A CRANE AND CRANE  
The present disclosure relates to a method for operating a crane with a traversable undercarriage, an uppercarriage rotatably mounted on the same with luffing main boom and derrick boom arranged...

Matches 1 - 25 out of 25