| Patent Number |
Title Of Patent |
Date Issued |
| 6701823 |
Method and device for controlling a lift cylinder, especially of working machines |
March 9, 2004 |
| By means of a method and a device for controlling a lift cylinder (2) of working machines, wherein the hydraulic oil from the pressure cylinder space (12) is forced via a control element (3) into the suction cylinder space (11) during lowering by an external force, it is possible in |
| 6685277 |
Method for braking a revolvable superstructure of a working machine and a pivoted brake unit |
February 3, 2004 |
| A method and apparatus for braking a revolvable superstructure of a working machine by counter-steering. A working machine has a superstructure which is driven by a motor via a transmission. A control lever operates a control valve which sends signals to a pivoting pump. The control leve |
| 6309171 |
Mobile loading machine with front-end loading equipment |
October 30, 2001 |
| In the case of a mobile loading machine with front-end loading equipment, in particular a construction machine, having a lifting frame (1) which is rotatably mounted by the rear end on a front frame part (13) of the loading machine (L) in a lifting-frame pivot point (14) and which can be |
| 6290048 |
Wheel hub with integral planetary gear mechanism and multidisk brake |
September 18, 2001 |
| A wheel hub with integral planetary gear mechanism and multidisk brake, in which the outer plates of the brake are actively connected directly to the wheel hub and the inner plates are connected to the axle body via a brake carrier, is to be of simple design and easy to install and to be |
| 5568841 |
Rear frame for center pivot steered construction machinery |
October 29, 1996 |
| A rear frame for center pivot steered construction machinery which, for receiving adjacent machine parts or subassemblies, is formed of components extending in the longitudinal direction of the frame and constitute bearing components which can be connected with each other by further |
| 5375347 |
Bucket wheel with supporting body |
December 27, 1994 |
| A bucket wheel has a conical supporting body constructed as an inner shell rotatably mounted on the bucket wheel axis and a device which co-operates with the supporting body to accommodate the buckets on the outer rim of the bucket wheel. The supporting body is prolonged radially by a |
| 5159992 |
Infinitely variable hydrostatic transmission drive |
November 3, 1992 |
| An infinitely variable hydrostatic transmission drive for self-propelled machines having a plurality of transmission motors which are fed from a common displaceable transmission-drive pump, at least one variable displacement motor having a swashplate which can be swung back into a zero |
| 5113570 |
Method and apparatus for shaping belt straps to enable them to be pulled through support roller |
May 19, 1992 |
| A process and a device enable tubular straps to be pulled or guided through support roller stations. The strap is rolled until the diameter (D) of the roll is less than the operating diameter (D') and is held in this position by a clamping means which moves with it, such as a mesh sleeve |
| 5100212 |
Arrangement of a tensioning wheel of multi-part construction for a tracked vehicle |
March 31, 1992 |
| A system of a tensioning wheel of multi-part construction for a tracked vehicle and a mounting for the wheel includes (a) a support body on the lateral vehicle superstructure, (b) an idler-wheel carrier which partially surrounds the support body and is displaceable in the longitudinal |
| 5095640 |
Method of producing bucket wheel bodies and bucket wheel body produced by the method |
March 17, 1992 |
| A bucket wheel body includes a supporting body having a frustoconical region, a radially outer circumferential region, and a radially inner circumferential region. The frustoconical region forms a carrier body; the radially outer region forms a rounded annular carrier for supporting |
| 5082187 |
Vibrating screen crusher |
January 21, 1992 |
| In a device for crushing materials, in particular soft stone, a plurality of grates with breaking elements are arranged below a bunker containing the feedstock. At least one of said grates is translationally mobile in the horizontal direction with respect to the other, which facilitates |
| 5080221 |
Roller belt |
January 14, 1992 |
| A conveyor having a roller belt closed in the circumferential direction having overlapping belt edges and an outer circumference and a plurality of belt support rollers guiding the roller belt along a conveying path, each support roller having a running face in contact with the outer |
| 5016945 |
Arrangement for connecting and moving the plates of a caterpillar track of earth-moving machines |
May 21, 1991 |
| An arrangement for connecting and moving the plates of a caterpillar track of earth-moving machines in which adjacent chain plates bridge over on a common axis by, in each case, two inner or outer straps having bore holes. A solid chain pin which is moveable in circumferential direction |
| 4960306 |
Open-cut mining cutter |
October 2, 1990 |
| The present invention provides a crawler unit having a superstructure and a substructure and an excavating device for recovering bulk material. The excavating device has bearing regions and drive regions and also has vertically arranged shearing drums for cutting free the bearing and dri |
| 4955986 |
Method for the heat treatment of finely granular material |
September 11, 1990 |
| A method for the heat treatment of finely granular material, particularly for the manufacture of cement, employs a preferably multi-stage cyclone preheater (2), a rotary tubular kiln (1), a cooler (6) and a kiln off-gas line (5) which is formed between rotary tubular kiln (1) and cyclone |
| 4934505 |
Conveyor belt boom for large-scale conveying equipment |
June 19, 1990 |
| A conveyor boom which is mounted to the superstructure of a large-scale conveyor so as to be raised and lowered in a vertical plane, such as a belt boom for a stacker, a discharge belt boom for a bucket wheel excavator or the like in which sets of carrier rollers are mounted on both |
| 4929178 |
Method for the heat treatment of finely granular material |
May 29, 1990 |
| A method for the heat treatment of finely granular material, particularly for the production of cement, employs a multi-stage cyclone preheater, a rotary tubular kiln, a cooler, and a single kiln off-gas line which is formed between the rotary tubular kiln and the cyclone preheater and i |
| 4926571 |
Connection for connecting compressed-air lines |
May 22, 1990 |
| A connection for connecting compressed-air lines arranged on the body of a floating dredge leading to measuring devices, control devices or the like, with measuring air lines mounted on a suction pipe of the floating dredge used for suction pipe position measuring units for the operation |
| 4852660 |
Grader blade having a pressurized float position |
August 1, 1989 |
| A grader has a grader blade which can be pressed against the ground or lifted off it by means of piston-cylinder drives. To be able to vary the downard pressure of the grader blade in its float position, either the piston chamber or the piston ring chamber of each drive can be charged |
| 4813480 |
Apparatus for cooling dust or finely granular bulk material |
March 21, 1989 |
| An apparatus for the cooling of dust or finely granular bulk material, having a vertical cylindrical cooling jacket, the externally cooled cylindrical surface of which is fed with the material to be cooled from the inside by means of an annular conveyor worm which conducts the materi |
| 4799595 |
Apparatus for the classifying of powdered bulk materials |
January 24, 1989 |
| The invention relates to an apparatus for classifying powdered bulk materials, particularly ground clinker, limestone or cement raw material, by air sifting. The material to be classified is fed to the cover plate of a cylindrical rotor and charged into a sifting space having the shape o |
| 4789182 |
Device for pivoting a rigid axle driven by a universal shaft to the frame of an automotive vehic |
December 6, 1988 |
| A device for pivoting a rigid axle driven by a universal shaft to the frame of an automotive vehicle by means of linkage elements one end of each of which has a frame-side support on an imaginary transverse axis which is common to all supports and perpendicular to the longitudinal axis o |
| 4776449 |
Stacker with connecting conveyor |
October 11, 1988 |
| A stacker with a connecting conveyor for connecting the stacker with a conveying unit includes a roller rocker which is movably attached to the connecting conveyor and can be placed on the conveying unit or on a traveling vehicle. The roller rocker is placed on the conveying unit or |
| 4775044 |
Parallel drive for escalators or moving sidewalks |
October 4, 1988 |
| A parallel drive for escalators or moving sidewalks is located within the region of reversal and inside the rotating step or pallet belt, the drive including with electric motor, gearing, step or pallet drive apparatus and handrail drive apparatus. The apparati are driven by the drive sh |
| 4763845 |
Mobile crusher system |
August 16, 1988 |
| A mobile crusher installation having a supporting framework which receives at least one crusher and can be lifted and relocated, corresponding to the advance or the removal of material, by a transport mechanism, preferably walking legs or extendable track-laying or wheel carriages, and h |
| 4763473 |
Arrangement for operating a diesel hydraulic drive |
August 16, 1988 |
| An arrangement for operating a diesel-hydraulic drive on a construction machine in limit-load control with a microprocessor controller in which the installed hydraulic power is greater than the rated output of the diesel engine. Upon thermal and/or diesel-engine overload the hydraulic |
| 4748754 |
Shovel for an excavator |
June 7, 1988 |
| The shovel for an excavator has teeth arranged at a distance apart from one another on its digging edge. The areas of the edge of the shovel between the teeth are equipped with caps that are relatively resistant to wear and are put on in such a manner that they can be replaced, and have |
| 4729517 |
Rebound crusher |
March 8, 1988 |
| The invention concerns a rebound crusher having at least one rotor provided with hammers which is mounted rotatably in a crusher housing and cooperates with at least one rebound mechanism which is arranged swingable against spring force within the crusher housing and the distance of whic |
| 4720052 |
Device for the fastening of hammers in rebound-mill rotors |
January 19, 1988 |
| A device for the fastening of hammers in axially extending cutouts of rebound-mill rotors having a form-locked attachment between each hammer and one side of the corresponding cutout and a force-locked attachment on the other side by means of at least one wedge-shaped clamping ledge whic |
| 4712744 |
Apparatus for charging at least one top-loading crusher |
December 15, 1987 |
| The invention concerns an apparatus for charging at least one top-loading crusher (1) with material which is fed batchwise by a plurality of transport vehicles (2) and is introduced into the crusher (1) by a bucket (5) which is loaded in each case by at least one transport vehicle (2) in |
| 4683959 |
Blade guide system for grading vehicle with displaceable grading blade |
August 4, 1987 |
| The grading vehicle has a grading blade which is guided displaceably on the frame of the vehicle transverse to the longitudinal direction of the vehicle. In order to obtain automatic readjustment of the guidance of the blade upon the occurrence of wear and play in the guidance, the blade |
| 4645059 |
Roller-path system |
February 24, 1987 |
| Roller-path system for the transportation of persons and goods, having an endless tread-plate band reversed around a horizontal axis as well as either a freely supported or a roller supported traction chain and self-supporting tread plates, each plate having two pull and two drag sup |
| 4645030 |
Multi-function directional handle |
February 24, 1987 |
| A multi-function directional handle with control elements mounted for turning in both directions is arranged as a single structural unit, in which unit an axially supported control spoke with hand-grippable, individually movable control levers at its ends is provided adjustably fixed |
| 4635783 |
Person-conveying device |
January 13, 1987 |
| Person-conveying device of quiet operating design having a step-belt or pallet belt which is guided in guide rails by transport chains with step-chain or pallet-chain rollers as well as chain-guide rollers, the points of contact of the step-chain or pallet-chain rollers with the trav |
| 4630878 |
Apparatus for the remote-controlled connecting or separating of two coupling parts |
December 23, 1986 |
| Method and apparatus for the remote-controlled connecting or separating of two coupling parts each of which is provided with mechanical form-lock elements and with control-line connectors, one of which parts is provided on the working tool and the other on the dipper stick or the like of |
| 4600246 |
Tread plate with grousers having curved regions |
July 15, 1986 |
| Tread plates having two grousers for chain-driven vehicles, in which the grouser development in the region of the bolted connection to the carrier chain has radii of curvature and the distance within a linearly developed region between two grousers is approximately equal to the distance |
| 4565276 |
Autowalk |
January 21, 1986 |
| An autowalk with individual step segments with a lower return travel coarse therefor, in which an elastic bridge closing the gap between step plates is provided between every two adjacent step segments. |
| 4486049 |
Heavy breaking giant excavating equipment |
December 4, 1984 |
| Heavy breaking giant excavator having a mining system with the following components: a boom having a feed chute and conveyor equipment at one end thereof; and sifting, crushing, and transfer equipment at the other end thereof, and a dipper boom arrangement is disposed on the end of the |
| 4476971 |
Safety device for conveyance systems for people |
October 16, 1984 |
| A safety device for passenger transporter systems for the prevention of the wedging in of foreign bodies, with a switching element, the latter serving to stop the transporter system, the switching element to be actuated from within the stationary part of the intake by means of horizontal |
| 4465425 |
Device for the paraxial kinetic control of a lifting machine boom |
August 14, 1984 |
| A device for the paraxial kinetic control of a boom that can be swivelled perpendicular to the rotatable platform of a mobile lifting machine wherein there is provided at least one coupling rocker which is pivotally mounted on the boom and provides a pivotal connection for a plurality of |
| 4407399 |
Two-speed transmission with hydraulic actuation of the shifting operations under load |
October 4, 1983 |
| A two-speed transmission with hydraulic actuation of the shifting operations under load for hydrostatically operated work machines, particularly caterpillar-track excavators, having a planetary gearing provided with double planet gears, and having packs of discs which are arranged co |
| 4405281 |
Hydraulic excavator with boom for large ranges of action and lifting heights |
September 20, 1983 |
| A hydraulic excavator, with a boom lower part, a boom upper part and a stick, for conversion to operation using a gripper with large ranges of action and lifting heights. A connecting piece which rigidly connects the boom upper part and the boom lower part is fastened to the boom upper |
| 4396083 |
Disconnectable hydraulic steering assistor |
August 2, 1983 |
| A hydraulic steering assistor, which can be switched off, for a vehicle with a hydraulic pump, an electric motor and a relay, which vehicle is driven by an electromotor, runs on wheels and is actuated by means of a drive control. By means of a switch disposed in the drive control, the |
| 4394886 |
Steering gear with steering-arm lever |
July 26, 1983 |
| A steering gear with pitmans arm, steering tie rod and steering gear connecting rod for a vehicle with optionally hydraulically boosted, mechanical steering or purely hydraulic steering, and a hydraulic pump, driven by the drive engine, being connected via conduits and a flow regulat |
| 4360078 |
Device for placing escalators in and out of operation |
November 23, 1982 |
| A device for placing escalators in and out of operation and having a system comprising safety switches, actuating elements and signal bodies. An outwardly swingable flap is provided having a rear side facing an interior of the escalator. Actuating elements for starting and stopping the |
| 4342254 |
Circuit for hydrostatically operable devices |
August 3, 1982 |
| A circuit for hydrostatically operable devices, especially hydraulic dredges, with at least two working circuits each of which comprises a plurality of hydraulic cylinders and/or hydraulic motors as well as a hydraulic pump while, depending on the requirement, the delivery of the per |
| 4304058 |
Coupling of an excavator shovel |
December 8, 1981 |
| Articulation of an excavator shovel at a pivot point arranged at the free end of the stick. A cap is mounted on the free end of the stick, the cap facing the rear wall of the shovel. The surface of the cap defines a radius with a center point at the pivot point of the shovel. A scraper |
| 4286681 |
Bottom plates for walking mechanisms, connected by means of connection pieces |
September 1, 1981 |
| Bottom plates for walking mechanisms for the movement of heavy loads, which bottom plates are connected by means of connection pieces. The bottom plates are elastically connected with connection pieces, the latter being formed as open profiles. |
| 4265031 |
Rotary drum mounted by means of running rings |
May 5, 1981 |
| A rotary drum for the heat treatment of bulk goods, with the drum being mounted by means of thrust rings. Wedges are arranged on the outer periphery of the shell of the rotary drum, the wedges being disposed opposite to one another at a spacing corresponding approximately to the widt |
| 4252147 |
Rotary connection for passage of hydraulic oil |
February 24, 1981 |
| Rotary connection having a housing which is provided with annular ducts and with feed bores for pressurized oil and non-pressurized oil and having a piston-shaped inner part arranged in the housing, the inner part being formed with bores and with grooves on its periphery, for the passage |
