| Liebherr-Hydraulikbagger GmbH Patent applications |
| Patent application number | Title | Published |
|---|
| 20110253467 | Construction Machine or Transfer Apparatus - The present disclosure relates to an apparatus, in particular a construction machine configured as a mobile excavator or a transfer apparatus, having an undercarriage carrying a chassis and having a superstructure connected thereto, wherein the superstructure is made up in a modular manner of at least two modules which can be releasably coupled to one another, and wherein at least one drive module is provided which forms an operable unit of a machine drive and a machine cooling system and at least one further module includes one or more superstructure components. | 10-20-2011 |
| 20110204698 | DUMPER WITH HEATABLE BODY - A dumper with a dump body includes at least one heating system for heating and/or warming up the body, wherein the heat transfer medium of the heating circuit is a liquid carrier medium. | 08-25-2011 |
| 20110150617 | WORK MACHINE, IN PARTICULAR EXCAVATOR - The present invention relates to a work machine, in particular to an excavator, having a boom, an extension element and a piece of working equipment, wherein the extension element is attached to a pivotal connection axle of the boom via a first gimbal mounting and bears the piece of working equipment, wherein the piece of working equipment is attached to a pivotal connection axle of the extension element via a second gimbal mounting. | 06-23-2011 |
| 20110002765 | Excavator boom - This invention relates to a box section made of an upper and lower plate and side plates. The upper and lower plates and the side plates thus form a weldment. According to the invention, provision is made for the interior of the box section to be accessible from the outside through multiple cutouts that are arranged in the longitudinal direction of the excavator boom in the side plates and/or in the upper and/or lower plates. | 01-06-2011 |
| 20100258364 | Excavator - The present invention relates to an excavator having an undercarriage, a superstructure and an internal combustion engine for the drive of the excavator arranged in or at the superstructure, with at least one fuel tank for the supply of the internal combustion engine with fuel being arranged in or/and at the undercarriage of the excavator. | 10-14-2010 |
| 20100096211 | Traveling Working Machine - The present invention relates to a traveling working machine, in particular an excavator, with an undercarriage on which the traveling gear is arranged, and an uppercarriage rotatably arranged on the undercarriage about a vertical axis of rotation. In accordance with the invention, the load-bearing steel construction of the uppercarriage is composed of at least one first and one second element, which are connected with each other via bolts and/or screws. | 04-22-2010 |
| 20100018195 | Piece of Working Equipment - The present invention relates to a piece of working equipment, in particular to an excavator or to a machine for the transfer of material, having an element movable via at least one working hydraulic cylinder, wherein at least one energy recovery hydraulic cylinder is provided for the recovery of energy from the movement of the movable element. In accordance with the invention, the energy recovery hydraulic cylinder is filled with gas at the bottom side and has a hollow piston rod. | 01-28-2010 |
| 20100018083 | Tool for Screwing a Piston onto the Piston Rod of a Hydraulic Cylinder and Hydraulic Cylinder - The present invention relates to a tool for screwing a piston onto the piston rod of a hydraulic cylinder, in particular of a hydraulic cylinder with a piston diameter of more than 200 mm, comprising a first tool element with connecting elements for releasable connection with the piston and a second tool element with connecting elements for releasable connection with the piston rod, which is rotatable with respect to the first tool element, wherein the torque necessary for screwing together piston and piston rod can be applied onto the piston and the piston rod via the connecting elements by rotating the first tool element against the second tool element. | 01-28-2010 |
| 20090309412 | TRAVELING WORKING MACHINE - The present invention relates to a traveling working machine, in particular a hydraulic excavator, with a traveling gear and with a hydraulic service brake system for the traveling gear, which is supplied with brake pressure via at least one brake valve. In accordance with the invention, the brake valve can be actuated electrically, wherein it is connected with a control element via an electric control line, by means of which an operator can brake the traveling working machine. | 12-17-2009 |
| 20090308067 | Hydraulic Drive - The present invention relates to a hydraulic drive which comprises a hydraulic motor having a first hydraulic connector and a second hydraulic connector, wherein the pressure applied at the first hydraulic connector of the hydraulic motor and the pressure applied at the second hydraulic connector of the hydraulic motor are each separately adjustable. | 12-17-2009 |
| 20090127887 | DUMP BODY - The present disclosure relates to a dump body for a transport vehicle, in particular for the transportation of bulk material, which can be pivoted around a pivot axis between a support position and an upwardly pivoted ejection position by means of a drive device and which consists of a body preferably made of sheet metal and having a base, side walls, a front wall terminating the dump body at one end and a chute arranged at the oppositely disposed end and drawn upwardly with respect to the base, wherein the body is rounded in a parabolic manner, with it having a rounded body base, a rounded chute and a rounded transition between the body base and the chute. | 05-21-2009 |
