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| Number | Title | Issue Date |
| 8178816 | Power supply for resistance welding units A device for resistance welding includes a welding clamp housing, a welding transformer, a welding clamp, a welding clamp drive for operating the welding clamp and a power supply using alternating supply voltage. The device may be built as small as possible and may ... | 05/15/2012 |
| 8170066 | Communication system and method for synchronization of the same With a method for synchronization in a communication system that includes a central participant and at least one further participant, at least one of the further participants being synchronized with the central participant, and, to this end, a telegram with synchron... | 05/01/2012 |
| 8126019 | Method for time synchronization in a cyclically operating communication system In a method for time synchronization of subscribers connected via a cyclically operating communication system, an item of time information is transmitted to the subscribers to be synchronized. It is provided to transmit an item of absolute time information simultane... | 02/28/2012 |
| 8112211 | Method and device for hydrostatically braking a vehicle A method and device for controlled braking of a vehicle using a hydrostatic drive is provided. Two pivotal hydraulic motors are connected to a respective axle of the drive, driven by a hydraulic pump and regulated by a respective regulating circuit. For each axle of... | 02/07/2012 |
| 8079436 | Vehicle with a drive engine for driving a traction drive and a working hydraulic system The invention relates to a vehicle having a drive engine/motor (2) for driving a locomotive drive (6) and for operating at least one hydraulic working circuit (4). The vehicle has a hydraulic accumulator (11) which is connected to a hydra... | 12/20/2011 |
| 8069876 | Sealing bush, hydraulic unit, and check valve There is disclosed a sealing bush as well as a hydraulic unit fitted with the sealing bush and a check valve. The sealing bush is made of plastic and has, on an end face, a preferably conical elevation that can be brought into sealing contact with a bearing shoulder... | 12/06/2011 |
| 8061902 | Corrosion-resistant bearing A floating bearing has a rotating, rotationally symmetric machine part (6), with an outer ring (10), which is non-rotatably supported in an intermediate bearing (1) that is located in the installation space of a housing (3, 8). An inner r... | 11/22/2011 |
| 8043183 | Drive and hydrostatic piston engine with brake energy recovery The invention relates to a hydrostatic piston engine (11) and a drive (1) for recovering brake energy. The drive comprises a driving shaft (4) and a first accumulator (12) for accumulating pressure energy. The first accumulator (12... | 10/25/2011 |
| 8028521 | Hydraulic catapult drive The invention relates to a catapult drive for an object to be accelerated, preferably the car of a fairground ride, wherein the object is accelerated by means of a driving element. The movement of the driving element is produced by a flexible drive and a hydraulic c... | 10/04/2011 |
| 8024924 | Drive having an energy recovery and retarder function The invention relates to a drive with an energy recovery and retarder function. The drive (1) comprises a hydrostatic piston engine (12) which is connected to an accumulator (16) for storing pressure energy and to a pressure limiting valve (1... | 09/27/2011 |
| 8020485 | Lifting gear valve arrangement Disclosed is a lifting gear valve arrangement for controlling a double-action lifting gear or an add-on unit with a continuously adjustable directional control valve and with an individual pressure compensator via which a pressure medium volume flow to and from a li... | 09/20/2011 |
| 8006490 | Hydraulic control device A hydraulic control device according to the invention is of load-sensing design and serves to actuate a first hydraulic load and a second hydraulic load. Also provided are a first control valve for actuating the first hydraulic load and a second control valve for ac... | 08/30/2011 |
| 7997202 | Web offset printing press and method for operating a web offset printing press A web offset printing press that prints and processes at least one material web and has printing units and/or printing unit assemblies, at least one folder, and transport elements operates by transporting the at least one material web by the transport elements throu... | 08/16/2011 |
| 7992492 | Web offset printing press and method for operating a web offset printing press A web offset printing press that prints and processes at least one material web and has printing units and/or printing unit assemblies, at least one folder, and transport elements operates by transporting the at least one material web by the transport elements throu... | 08/09/2011 |
| 7946114 | Hydraulic control system The invention relates to a hydraulic control system for providing at least one hydraulic consumer with a pressure medium. Said system comprises an LS pump system and a metering port for adjusting the pressure medium volume flow rate towards the consumer. The LS line... | 05/24/2011 |
| 7942482 | Brake system What is disclosed is a brake system for a mobile machine, e.g., for a wheel loader, comprising two hydraulic circuits to each of which at least one respective wheel brake cylinder is associated. Control of the wheel brake cylinders is effected through a brake valve ... | 05/17/2011 |
| 7926265 | Hydrostatic drive The invention relates to a hydrostatic drive. The hydrostatic drive (1) includes a hydraulic pump (3) and a hydraulic motor (7). The hydraulic pump (3) may be connected by way of a first working line (5) to a first working line con... | 04/19/2011 |
| 7924888 | Method for exchanging data between stations from different networks The invention relates to a method for exchanging data between stations or nodes (111, 121, 122, 123, 131, 132, 133, 141, 142, 143) from different realtime capable networks (120, 130, 140) and from non-realtime capable networks (110). To this end... | 04/12/2011 |
| 7881828 | Bus module for connecting electrically triggered fluidic valves A bus module for connecting electrically triggerable fluidic valves to a data bus. The bus module has an electrical circuit configuration, which evaluates address data and user data from data telegrams transmitted on the data bus and which triggers a fluidic valve d... | 02/01/2011 |
| 7874153 | Hydrostatic drive and method of braking a hydrostatic drive The invention relates to a hydrostatic drive (1) and to a method of braking a hydrostatic drive (1). In the hydrostatic drive (1), in a closed circuit a hydraulic pump (3) is connected by a first and a second working line (11, 12) ... | 01/25/2011 |
| 7870729 | Hydraulic control device The invention relates to a hydraulic control device for a priority, first hydraulic consumer and a subordinate, second hydraulic consumer, pressure medium being deliverable to the first or the second consumer via a first or a second metering diaphragm. A pressure sc... | 01/18/2011 |
| 7870727 | Method of controlling a hydrostatic drive A method of controlling a hydrostatic drive is provided. The hydrostatic drive has a hydraulic pump and a hydraulic engine. The hydrostatic drive further has a first and a second hydraulic reservoir for storing and recuperating energy. Pressure energy is stored in t... | 01/18/2011 |
| 7835404 | Method for synchronization in a redundant communication system With a method for synchronization in a redundant communication system that includes a central participant and at least one further participant, at least one of the further participants being synchronized with the central participant, and, to this end, at least two t... | 11/16/2010 |
| 7828540 | Drive unit Disclosed is a drive unit, in particular for an injection unit or an ejector of an injection molding machine, comprising a stroke spindle device with a spindle and a spindle nut, and a prestressing device for prestressing the spindle that is dischargeable in a displ... | 11/09/2010 |
| 7827843 | Device for controlling the drawing process in a transfer press A device for controlling the drawing process in a transfer press has two tool parts which act in opposition to one another and between which the workpiece to be deformed is held. One tool part is moved between two reversal points by a mechanical crank mechanism driv... | 11/09/2010 |
| 7819130 | Metering orifice arrangement for a hydraulic current divider and current adding device There is disclosed a variable metering orifice arrangement for a current divider and current adding device, the metering orifice arrangement including one or more working terminals by each of which a consumer can be supplied with pressure fluid. The metering orifice... | 10/26/2010 |
| 7811080 | Injection unit The invention is directed to an injection unit, in particular for an injection molding machine, comprising a screw which is guided in a plastication cylinder in a rotatable and axially movable manner and via which plastic material undergoes plastication and can be i... | 10/12/2010 |
| 7798382 | Regulating the web tension of a continuous material A method for regulating a web tension of a continuous materials which is moving using a transport device with a web-tension controller, includes determining controller characteristic parameters, and using for the determining of controller characteristic parameters a... | 09/21/2010 |
| 7786685 | Linear motor and method for operating a linear motor A linear motor includes a primary part arranged as a guideway stator and at least one secondary part that is movable with respect to the primary part, the at least one secondary part having device(s) for controlling the generation of a magnetic field, causing its mo... | 08/31/2010 |
| 7760753 | Method for data transmission A method for data transmission between participants communicating by means of a data bus, in which as high a transmission likelihood for additional data as possible is to be assured by providing that in the exchange of data telegrams between the participants within ... | 07/20/2010 |
| 7750720 | Circuit arrangement and a method for galvanically separate triggering of a semiconductor switch A circuit arrangement and a method for the DC-isolated driving of a semiconductor switch, wherein the circuit arrangement has a control circuit, a driver, a transformer for the DC-isolated transfer of a drive signal from the controller as switching signal into the d... | 07/06/2010 |
| 7735425 | Conveyor system with a conveyor carriage with axially aligned track rollers A conveyor system (10) includes a conveyor course (12), which has a curved portion and two tracks (22, 24) located one above the other, and a conveyor carriage (14); each of the tracks (22, 24) is assigned at least one horizontal t... | 06/15/2010 |
| 7732747 | Tool with contactless switch An electric tool has a handle, and an element for varying tool functions located in the handle and including a photoelectric cell incorporated onto the handle in such a way that if the photoelectric cell is completely or partly covered, a tool function is achieved o... | 06/08/2010 |
| 7704068 | Drive unit Disclosed is a drive unit, in particular for a closing unit, an injection unit, or an ejector of an injection molding machine. The drive unit comprises a double-acting force transmitting element provided with a small and a large piston unit which are disposed in a c... | 04/27/2010 |
| 7686607 | Actuator An actuator is disclosed, in particular for a locking unit of an injection compression machine, comprising a hydraulic force translator with two piston units moving relative to each other with different effective areas. The foregoing enclose a pressure chamber toget... | 03/30/2010 |
| 7680119 | Main station and substation in a network and a method for transmitting data in a network A network station for a data network for receiving external data and for transmitting device-internally prepared data has a repeater for transmitting an external data packet received at a data input to a data output, a first data preparation unit for transmitting an... | 03/16/2010 |
| 7677351 | Electrohydraulic steering system An electrohydraulic steering system includes a steering unit, triggerable via a user control element, for supplying a steering motor with pressure fluid. As a function of the actuation of the user control element or as a function of an external signal, the steering ... | 03/16/2010 |
| 7659687 | Intelligent drive The invention relates to an electric drive (19) provided with a drive regulator (5), an electromotor (9) and a control device (3, 4, 7, 8) which is used to detect and monitor the threshold value of axis-relevant, electrical/mechanical ope... | 02/09/2010 |
| 7639051 | Circuit arrangement for rectifying the output voltage of a sensor that is fed by an oscillator In the case of a measuring device having a sensor supplied from an oscillator for a non-electrical variable and having a circuit arrangement downstream of the sensor for rectifying the output voltage of the sensor, interference pulses, which are superimposed on the ... | 12/29/2009 |
| 7637103 | Hydraulic control arrangement Disclosed is a hydraulic control arrangement for damping wagging vibrations, wherein during operation a hydraulic cylinder of a lifting equipment can be connected to a hydraulic accumulator via a damping valve arrangement. The damping valve arrangement comprises a n... | 12/29/2009 |
