| J.C. BAMFORD EXCAVATORS LIMITED Patent applications |
| Patent application number | Title | Published |
|---|
| 20160122973 | Working Machine - A working machine comprising: a base assembly including a ground engaging structure; an undercarriage connected to the ground engaging structure; a superstructure connected to the undercarriage; a working arm mounted to the superstructure; a connector connecting the undercarriage to the superstructure; and a drive arrangement located in the base assembly for moving the ground engaging structure to propel, in use, the working machine. | 05-05-2016 |
| 20160121721 | WORKING MACHINE - A working machine comprising: a ground engaging structure with a first and second axle, each mounting two wheels; a body supported on the ground engaging structure, a working arm mounted to the body; and a drive arrangement for moving the ground engaging structure to propel the working machine, the drive arrangement including a prime mover and transmission. The transmission comprises a hydraulic pump driven by the prime mover, a first high speed hydraulic motor to drive the first axle to permit the working machine to be drive at relatively high speeds in a first two-wheel drive operating mode, and a second low speed motor a first high speed hydraulic motor to be supplied with hydraulic fluid from the hydraulic pump to drive the second axle at relatively low speeds and configured to be driven in conjunction with the first motor in a second four-wheel drive operating mode. | 05-05-2016 |
| 20160002890 | COMPUTER-IMPLEMENTED METHOD FOR PROVIDING A WARNING - A computer-implemented method for providing a warning including the steps: obtaining data relating to the location of a hazardous object and obtaining data relating to the location of a material handling machine. The computer to compare the location of the material handling machine to the location of the hazardous object and estimates a probability of a hazardous event occurring. If the estimate exceeds a threshold valve, a warning is issued by the computer. | 01-07-2016 |
| 20160002878 | MATERIAL HANDLING MACHINE - A method of operating a material handling machine having a material handling implement moveable relative to a chassis of the machine, the method including the steps of positioning the material handling implement in a first position of a first region, moving the material handling implement to a second region, providing a control system to automatically return the material handling implement to the first region by positioning it at a second position of the first region different to the first position of the first region, and returning the material handling implement to the second region. | 01-07-2016 |
| 20150368875 | WORKING MACHINE JOYSTICK ASSEMBLY - A working machine joystick assembly includes a joystick arranged to control one or more functions of a working machine, and a mechanical linkage assembly configured to operatively connect the joystick to spool valves to control the one or more functions. The joystick includes at least two axes of movement, one axis being a twist axis, each axis of movement being configured to mechanically actuate a separate spool valve through the mechanical linkage assembly. | 12-24-2015 |
| 20150361637 | MATERIAL HANDLING MACHINE - A material handling machine includes an arm moveable relative to a chassis of the machine, a first hydraulic actuator operable to lift and lower the arm relative to the chassis, a ground engaging implement mounted on the arm and moveable relative to the arm, a second hydraulic actuator operable to move the ground engaging implement relative to the arm, the second hydraulic actuator having a pressured chamber, pressure within the pressure chamber being indicative of a force of engagement between the ground engaging implement and the ground, and a control system. The control system defines a target pressure for the pressure chamber, the control system being arranged such that when a pressure within the pressured chamber exceeds the target pressure the control system operates the first hydraulic actuator to lift the arm to reduce the force of engagement between the ground engaging implement and the ground. | 12-17-2015 |
| 20150292182 | VEHICLE - A vehicle having a plurality of operator controls, an operator seat moveable between a first and second position, securing means for releasably securing the seat in the first position, and a single operator actuated means operable to both
| 10-15-2015 |
| 20150198213 | BI-DIRECTIONAL HYDRAULIC FLOW CONTROL VALVE - A flow control valve for a hydropneumatic suspension comprises a circular valve body including a flow restriction and a plurality of flow relief passages closed at one side by respective leaf springs. Further flow relief is provided by a reciprocal central sleeve which contains the flow restrictor and is movable to unseat one or both leaf springs. | 07-16-2015 |
| 20150197920 | METHOD OF OPERATING A MATERIAL HANDLING MACHINE - A method of operating a material handling machine, the machine including an engine, ground engaging means, and a control means selectively operable by an operator to move the ground engaging means, the method including the steps of:
| 07-16-2015 |
| 20150176254 | DISARM DEVICE - A disarm device for use with a hitch arrangement on a working arm of a working machine, the device comprising a measurement device for measuring a property associated with the arm which can be used to determine whether or not a working implement carried by a working arm is sufficiently supported by a surface on to which it is to be released. | 06-25-2015 |
| 20150176249 | VEHICLE - A vehicle including an engine, the engine being selectably operably couplable to ground engaging motive means, the vehicle including a foot throttle for selectively controlling power delivery from the engine, a hand throttle for selectively controlling power delivery from the engine and an operator seat being moveable between a front facing position and a rear facing position,
| 06-25-2015 |
| 20150174958 | SUPPORT CASING FOR A DIFFERENTIAL GEAR OF AN AXLE AND TRACK ROD ASSEMBLY - A driving and steering axle of an off-highway vehicle includes an attached track rod assembly incorporating an actuator housed in spaced apart annular mountings of an axle drive head casing. One mounting includes a slot to permit through passage of one end of the assembly with a pre-attached track rod end. | 06-25-2015 |
| 20150071752 | Welded Component and Method of Fabrication - A box-section arm of an excavator or the like has a pivot axis at one side. Two flat plates | 03-12-2015 |
| 20150027109 | HYDRAULIC SYSTEM INCLUDING A KINETIC ENERGY STORAGE DEVICE - A hydraulic system including hydraulic fluid, a hydraulic machine for pressuring the hydraulic fluid, a hydraulic circuit for delivering the hydraulic fluid to a hydraulic actuator, the hydraulic machine being configured to receive the hydraulic fluid from the hydraulic actuator and a kinetic energy storage device for storing energy in a kinetic form, the kinetic energy storage device being operably coupled to the hydraulic machine, the system being configured such that the hydraulic machine is operable to transfer energy from the hydraulic fluid received from the hydraulic actuator to the kinetic energy storage device. | 01-29-2015 |
| 20140365081 | Machine and Method of Manufacturing a Machine - A machine includes
| 12-11-2014 |
| 20140058636 | MACHINE, CONTROLLER AND CONTROL METHOD - A controller for use with a machine comprising a machine body, and a load handling apparatus coupled to the machine body and moveable by a movement actuator with respect to the machine body, the controller being configured to receive a signal representative of the position of the load handling apparatus with respect to the machine body and a signal representative of a moment of tilt of the machine, wherein the controller is further configured to issue a signal for use by an element of the machine including the movement actuator, which in response to the signal issued by the controller, is configured to restrict or substantially prevent a movement of the load handling apparatus when a value of the signal representative of the moment of tilt reaches a threshold value, the threshold value being dependent on the signal representative of the position of the load handling apparatus with respect to the machine body. | 02-27-2014 |
| 20130280097 | HYDRAULIC SYSTEM - A method includes providing a hydraulic pump with an outlet, a main orifice having an inlet communicating with the pump outlet, and a main orifice outlet. Further provided are a flow orifice, an amplification orifice, and an amplification orifice outlet, means for generating an output signal representative of a fluid pressure, and a pump controller for controlling the hydraulic pump in response to the output signal. The flow orifice and the amplification orifices each define an area, with these areas defining a ratio, and with the main orifice and the ratio being variable. The method includes operating the system in a first mode so as to define a first mode ratio and operating the system in a second mode so as to define a second mode ratio, so that the ratio is controlled differently in the first mode and the second mode. | 10-24-2013 |
| 20130028695 | HYDRAULIC CIRCUIT AND WORKING MACHINE INCLUDING THE SAME - A working machine hydraulic circuit, including: a hydraulic motor; a pilot pressure system configured to supply hydraulic fluid at a pilot pressure to one or more components of the working machine; and a make-up pressure system in hydraulic fluid communication with the pilot pressure system and the hydraulic motor, and configured to supply hydraulic fluid to the hydraulic motor from the pilot pressure system if the hydraulic fluid pressure in a part of the hydraulic motor is below a threshold pressure such that, during deceleration of the hydraulic motor, the make-up pressure system is operable to supply fluid from the pilot pressure system to the hydraulic motor to reduce the risk of cavitation in the hydraulic motor. | 01-31-2013 |
| 20120245803 | Working Machine Hitch Arrangement - A working machine comprising: a working arm; a hitch arrangement attached to the working arm and configured to be removably secured to a working implement; one or more sensors configured to determine an orientation of a working implement secured to the hitch arrangement and to output a signal indicative of the orientation of a working implement secured to the hitch arrangement with respect to gravity; and a control module configured to receive the signal from the one or more sensors and to perform a safety function in response to receipt of the signal such that the safety function is performed if the orientation of a working implement secured to the hitch arrangement with respect to gravity is an unpermitted orientation. | 09-27-2012 |
| 20120039696 | Control System For A Load Handling Apparatus - A control system for a machine which includes a load handling apparatus, the load is moveable relative to a body of the machine by the load handling apparatus. The machine including a pivot about which a tipping moment is produced by the load. The load handling apparatus including an actuator and is capable of moving the load to a position at which the tipping moment is at a predetermined threshold value. The control system includes a sensor which senses the tipping moment and in use, provides an input to a controller. The controller is responsive to the input to influence operation of the actuator so that in the event that the sensor senses that the value of the tipping moment is approaching the threshold value, the speed of movement of the load is progressively reduced. | 02-16-2012 |
| 20110217151 | Working Machine - A working machine ( | 09-08-2011 |
| 20110215613 | Working Machine - A working machine ( | 09-08-2011 |
| 20110030505 | Hybrid Transmission - A transmission for a vehicle which includes a ground engaging structure driven from an output member of the transmission is disclosed, the transmission including a first input member connected to a prime mover, and a second input member drivable by the operation of a hydraulic drive motor, and the transmission being operable to transmit drive from the first input member to the output member in mechanical drive mode, and from the second input member to the output member in hydrostatic drive mode, the first input member providing a drive input from the prime mover to a mechanical drive train which includes a gear ratio selection apparatus, and for mechanical drive mode, the gear ratio selection apparatus providing for one of a plurality of alternative gear ratios to be selected by the engagement and/or disengagement of at least one power-shift clutch device, and the second input member being connected via a drive path to the output member, and there being a power-shift clutch device between the hydraulic drive motor and the second input member which is operative when the transmission is in hydrostatic drive mode, to transmit drive established by the operation of the hydraulic drive motor to the second input member. | 02-10-2011 |
| 20110011071 | Hydraulic System - A hydraulic system for an operator controlled machine, the system including at least one actuator for moving a machine component, a source of pressurized fluid for delivering pressurized fluid at a system pressure to a control valve which is operable under operator control, to control the flow of fluid from the source to the actuator at a load pressure, along a load pressure path, a flow control apparatus for controlling the flow of fluid from the source to the control valve, the flow control apparatus including an actuating part which is biased by a resilient device to a condition in which the flow control apparatus provides for a maximum flow of fluid to the control valve, actuating part movement by the resilient device being resisted by system pressure fluid and being supported by fluid at a control pressure, the control pressure being derived from the load pressure, and wherein the system includes a pressure control device to which the load pressure is communicated, the pressure control device being operated under operator control either to deliver the control pressure to the flow control device at load pressure or a modified pressure which is less than the load pressure. | 01-20-2011 |
| 20100322753 | Method Of Operating A Working Machine - A method of operating a working machine which includes a main structure and a working arm pivotally mounted at one end on the main structure. The working arm is raisable and lowerable relative to the main structure by a first actuator device, and is extendible relative to the main structure by a second actuator device. In use, the arm carries at another end a working implement which can carry a load. The machine further including a ground engaging drive structure by which the machine is drivable on the ground. The machine has a longitudinal load moment control system which automatically disables operation of the first and/or second actuator devices from increasing longitudinal instability in the event that a predetermined instability is sensed. When the machine senses a ground travelling speed above a threshold speed, the longitudinal load moment control system is disabled. | 12-23-2010 |
| 20100242913 | METHOD OF OPERATING A COMPRESSION IGNITION ENGINE - A method of operating a compression ignition engine, which includes at least one combustion chamber containing a piston, and a mechanically operated fuel injection pump apparatus. The method includes sensing the engine operating temperature with a first sensor, and providing input to a controller. The controller operates the fuel injection pump apparatus to deliver fuel to each of the combustion chambers according to a first timing regime when the engine operating temperature is above a threshold temperature, and according to a second, advanced timing, regime when the engine operating temperature is below the threshold temperature. The method further includes sensing the pressure in the combustion chambers with a second sensor. When the controller is operating the fuel injection pump apparatus according to the second timing regime and the combustion chamber pressure exceeds a desired pressure, the method includes changing operation from the second timing regime to the first timing regime. | 09-30-2010 |
| 20100049410 | Method of Operating an Apparatus - A method is described of operating an apparatus which has at least two alternative operational modes, and a plurality of controllable operating devices and a controller to which demand signals to operate the controllable operating devices are input by the operator from a main operating control structure, and from which command signals are issued to the controllable operating device, to change the operating states of the devices, and the apparatus further including a warning device, and an auxiliary control structure for the operator to input an auxiliary signal to the controller, the auxiliary control structure being operationally separate from the main operating control structure, at least one of the operating devices having an expected operating state appropriate for an operational mode, the method including determining the selected operational mode in which the apparatus is being operated or is about to be operated, and determining the operating state of the at least one operating device, comparing the determined operating state with the expected operating state and where the determined operating state is not the expected operating state, the controller providing an indication to the operator by the advisory device, and being responsive to the operator changing the operating state of the at least one operating device to the expected operating state using the auxiliary control structure. | 02-25-2010 |
| 20090065487 | Method of Providing a Machine Readable Marking - A method of providing a machine readable marking on a substrate being a part of an actuator is described, in which the marking includes at least first and second marks, and the method including repeatedly firing a laser device so that at each of a plurality of row positions of a first area of the substrate, substrate material is heated and displaced thus to provide a depression in the surface of the substrate at least partially surrounded by displaced material, the method including providing a plurality of rows of such depressions in the first area to form the first mark, repeatedly firing a laser device so that at each of a plurality of row positions of a second area of the substrate, substrate material is heated and displaced thus to provide a depression in the surface of the substrate at least partially surrounded by displaced material, the method including providing a plurality of rows of such depressions in the second area to form the second mark, and wherein each depression of the rows of depressions of the first and second marks has a depth determined from the general surface of the substrate less than 4 μm, and the height of the displaced material determined from the general surface of the substrate is not greater than 4 μm. | 03-12-2009 |
| 20090060769 | Pumping Apparatus - A pumping apparatus includes a pump housing, a pumping member which is rotatable in the housing to pump fluid, the pumping member being provided on a support which is in use, driven, the housing including in communication with an inlet, a lower pressure region, and in communication with an outlet, a higher pressure region, there being a passage for fluid from the higher pressure region to the lower pressure region through the support when the fluid pressure in the higher pressure region exceeds a threshold value. | 03-05-2009 |
| 20090020965 | Working Machine - A working machine includes a body and an axle which is mounted so as to be moveable relative to the body, the axle carrying at or towards each end, a ground engaging wheel by means of which the machine can travel over the ground, the machine including a speed sensor sensitive to the machine ground speed, and there being a hydraulic control system including at least one control actuator connected between the body and the axle for controlling movement of the axle relative to the body, and the hydraulic system further including at least one control valve which is operable to restrict fluid flow occurring as a result of the control actuator extending or retracting in response to axle movements relative to the body, depending upon the signal provided by the speed sensor, wherein the control valve is an electrically operated control valve, operated proportionally by a valve controller which responds to changes in machine speed, by adjusting the restriction to fluid flow so as to permit more fluid flow as the machine speed increases. | 01-22-2009 |
| 20080292442 | Working Machine - A working machine includes a body and a ground engaging structure, the body mounting a prime mover and a first working arm, the first working arm being pivoted for up and down movement about a first generally horizontal axis, and extending beyond a first end of the body and carrying in use, at its outermost end, a first working implement, and the body carrying towards a second end of the body opposite to the first end, a superstructure which is rotatable relative to the body about a first generally upright axis, the superstructure providing a mounting for a second working arm, which mounting permits the second working arm to be pivoted up and down about a second generally horizontal axis and to be rotated about a second generally upright axis, and second working arm in use, carrying at an outermost end, a second working implement, the superstructure mounting an operator's cab which provides an operator position including an operator seat and controls operable by an operator when occupying the seat, and wherein the operator's cab is rotatable about a third generally upright axis relative to the superstructure. | 11-27-2008 |
| 20080292436 | Method of Operating a Working Machine - A method of operating a working machine of the kind including a body, a ground engaging structure, the body carrying a superstructure which is rotatable relative to the body about a first generally upright axis, the superstructure providing a mounting for a working arm which permits the working arm to be pivoted up and down about a generally horizontal axis and to be rotated about a second generally upright axis, the working arm including a mounting structure for releasably carrying at an outermost end thereof, a working implement, the method including providing on the machine a working implement holding device, and rotating the superstructure relative to the body about the first generally upright axis, and manipulating the working arm about the generally horizontal axis and the second generally upright axis to bring the working implement carried by the working arm into holding engagement with the holding device whereby the holding device holds the working implement, releasing the working implement from the mounting structure, and manipulating the working arm to move the mounting structure away from the holding device. | 11-27-2008 |
| 20080289227 | Method of Operating a Working Machine - A method of operating a working machine which includes a body, a first working arm carrying in use, at its outermost end, a mounting structure (for releasably carrying a first working implement, and the body carrying towards a second end of the body opposite to the first end, a superstructure which is rotatable relative to the body about a first generally upright axis, the superstructure providing a mounting for a second working arm, and the second working arm in use, carrying at an outermost end, a mounting for a second working implement, the machine further including a third implement carried at the second end of the body, on a further mounting structure to provide a further mounting assembly capable of mounting the first working implement, and the method including manipulating the second working arm to move the mounting for the second working implement to the mounting structure carrying the first working implement, releasing the engagement between the mounting structure of the first working arm and the first working implement, transporting the first working implement whilst manipulating the second working arm to bring the first working implement to the further mounting assembly, and engaging the first working implement with the further mounting assembly so that the first working implement is carried by the further mounting assembly, and using the first working implement when carried by the further mounting assembly to perform working operations. | 11-27-2008 |
