| CATERPILLAR PAVING PRODUCTS INC. Patent applications |
| Patent application number | Title | Published |
|---|
| 20110302998 | METHOD AND SYSTEM FOR COMPACTION MEASUREMENT - A system for compaction measurement, including at least two compaction measurement systems for determining the compaction state of various portions of a material region at a worksite and a display system for displaying aggregated data from the compaction measurement systems. | 12-15-2011 |
| 20110158745 | VIBRATORY SYSTEM FOR A COMPACTOR - A vibratory system for a compactor is provided. The vibratory system has a first eccentric, a second eccentric, and a drive shaft. The second eccentric is rotatably and coaxially positioned with respect to the first eccentric. The drive shaft is rotatably coupled to the second eccentric and rotatably coupled to the first eccentric through a helical spline. | 06-30-2011 |
| 20110097148 | SURFACE COMPACTOR AND METHOD OF OPERATING A SURFACE COMPACTOR - A method of operating a surface compactor is provided. The method may include supporting a base of the surface compactor on a surface. The method may also include generating a fluctuating vertical force on the base with a vibratory mechanism, which may include moving one or more weights of the vibratory mechanism with a drive system of the vibratory mechanism. Additionally, the method may include sensing a parameter of the operation of the vibratory mechanism that fluctuates in reaction to moving the one or more weights to generate the fluctuating vertical force. The method may also include automatically adjusting the operation of the vibratory mechanism to adjust the fluctuating vertical force based at least in part on the sensed parameter. | 04-28-2011 |
| 20110054746 | CONTROL SYSTEM AND METHOD FOR OPERATING A HYDROSTATICALLY DRIVEN VEHICLE - A hydrostatically powered vehicle includes an engine operatively associated with a pump that supplies fluid to a propel motor. Based on various sensed and engine operating conditions, a controller determines a desired operating condition for the engine while maintaining the travel speed of the vehicle constant. | 03-03-2011 |
| 20110052319 | EXTENSION PLATE FOR A COMPACTOR AND METHOD - An extension plate for use in a compactor includes an elongate body extending between a first surface configured to be coupled to the compactor frame and a second surface configured to be coupled to a support of the compactor. The first surface includes a first opening aligning with an opening into an interior of the compactor. A second opening in at least one of the elongate body or the second surface communicates with the first opening to allow passage of a hose through the extension plate and through the opening in the frame into the interior space. | 03-03-2011 |
| 20100111605 | Vibratory Compactor Controller - An apparatus for actuating a vibratory mechanism in a vehicle comprising a sensor configured to produce an operational value signal indicative of an operational characteristic of the vehicle; a computing device operable to receive the operational value signal and determine actuation values based at least in part on the operational value signal and to produce a corresponding control signal for selectively actuating the vibratory mechanism; and an input device configured to modify the actuation values during operation of the vehicle. A method for controlling a vibratory mechanism in a vehicle comprising the steps of producing an operational value signal indicative of an operational characteristic of the vehicle; determining actuation values from the operational value signal; modifying actuation values during operation of the vehicle; and signaling the vibratory mechanism to actuate in response to actuation values. | 05-06-2010 |
| 20100086354 | EXTENSION PLATE FOR A COMPACTOR AND METHOD - An extension plate for use in a compactor includes an elongate body extending between a first surface configured to be coupled to the compactor frame and a second surface configured to be coupled to a support of the compactor. The first surface includes a first opening aligning with an opening into an interior of the compactor. A second opening in at least one of the elongate body or the second surface communicates with the first opening to allow passage of a hose through the extension plate and through the opening in the frame into the interior space. | 04-08-2010 |
| 20100086353 | COMPACTOR WITH SMOOTH HOSE ROUTING - A compactor with a hose routing includes a drum connected to a frame with a support. The frame defines an interior space of the compactor and includes a plate through which an opening extends to the interior space. A hose assembly extends from an end of the drum through the opening to the interior space without the use of bulkheads. | 04-08-2010 |
| 20090314571 | Method and arrangement of a plurality of propel pumps in a hydrostatically driven compactor - Fluid control propulsion system, machine including the system, and method of controlling the propulsion of a machine having a compacting drum and a wheel mounted on an axle, drum and axle motors operatively connected with the drum and the axle, respectively, and drum and axle pumps operatively connected to an engine and fluidly connected to the pumps. A fluid control orifice disposed in fluid communication between the pumps is selectively disengageable in response to at least one of operator instruction, sensed pressure differential between the drum and axle pumps, and sensed disparity in rotational speed between the drum and axle. | 12-24-2009 |
| 20090272591 | Force assist arrangement for a slidable coupling - A force assist arrangement for a slidable coupling, a slidable coupling including the force assist arrangement, and a machine including respectively slidable portions, the slidable coupling, and the force assist arrangement. The force assist arrangement includes at least first and second links pivotably coupled together at one end and to the respectively slidable portions at the other ends, and a force assist device pivotably coupled to the links along their respective lengths. | 11-05-2009 |
| 20090257825 | Heating Control System for A Screed - A control system for heating a screed assembly of a paving machine is provided. The control system includes a plurality of resistive heating elements positioned adjacent to a screed plate of the screed assembly. An electrical power supply is selectively connected with the resistive heating elements via switches operated by a controller. The controller is responsive to inputs from at least manual switches and temperature sensors. The controller is configured to automatically adjust the temperature of the screed plate by selectively energizing fewer than all of the resistive heating elements at a time. | 10-15-2009 |
| 20090154995 | Guard Assembly and Related Methods - This disclosure provides a guard assembly and its individual guards for protecting a conveyor system, such as the center conveyor frame. Related methods of installing or removing the individual guards and the guard assembly are also provided. | 06-18-2009 |
| 20090143952 | POWER MANAGEMENT SYSTEM FOR COMPACTION VEHICLES AND METHOD - A method for managing power in a hydrostatically driven vehicle includes calculating the power consumption of the vehicle based on the pressure of the compressed fluid in a hydraulic circuit, and the displacement of the pump. An electronic controller further calculates the power output of the engine based on at least one engine operating parameter, and operates to change the power output of the engine based on a difference between the power consumption and the power output. | 06-04-2009 |
| 20090140548 | SLIDING PANEL ARRANGEMENT FOR A VEHICLE - A sliding panel arrangement for a vehicle wherein a panel is adapted to be coupled to a vehicle body, at least two linear bearings or at least one longitudinal member being disposed on the panel, the other of the at least two linear bearings or at least one longitudinal member being adapted to be coupled to the vehicle body. The longitudinal member is sized and disposed to slide within the linear bearings, the panel sliding between closed and open positions over a vehicle compartment. | 06-04-2009 |
| 20090139792 | CONTROL SYSTEM AND METHOD FOR OPERATING A HYDROSTATICALLY DRIVEN VEHICLE - A hydrostatically powered vehicle includes an engine operatively associated with a pump that supplies fluid to a propel motor. Based on various sensed and engine operating conditions, a controller determines a desired operating condition for the engine while maintaining the travel speed of the vehicle constant. | 06-04-2009 |
| 20090133951 | METHOD FOR OPERATING A HYDROSTATICALLY DRIVEN VEHICLE - A hydrostatically driven vehicle has an engine operating a variable displacement propel pump, a displacement of which can vary based on an angle of a rotating swashplate, such that a fluid flow impelled by the pump transfers power to at least one propel motor rotating a wheel of the vehicle. An electronic controller of the vehicle senses an operating parameter of the system, for example, the angle of the rotating swashplate or the direction and speed of rotation of the propel motor with a sensor to yield an actual signal, and relays the actual signal to an electronic controller. The controller determines a desired angle for the rotating swashplate based on the control signal, and compares it to the actual signal from the sensor. Motion of the vehicle is stalled when the angle signal differs from the desired angle by a predetermined extent and for a predetermined period. | 05-28-2009 |
| 20090127889 | PACKAGING ARRANGEMENT FOR A FLUID TANK FOR A MACHINE - A packaging arrangement for a fluid tank for a machine, including an engine disposed within an engine compartment of a body having a hood selectively disposed over the engine compartment. The engine includes a cooling package having at least one air intake. At least one fluid tank at least partially surrounds the air intake, and a compliant surface is coupled to at least one of the fluid tank and the hood. The compliant surface substantially seals against both the fluid tank and the hood to substantially inhibit air from within the engine compartment from being drawn into the air intake. | 05-21-2009 |
| 20090127018 | COMPONENT COMBINATION FOR A HYDROSTATICALLY DRIVEN VEHICLE - A hydrostatically driven vehicle includes an engine operating at a first speed and operably connected to a variable displacement pump in fluid communication with a hydraulic circuit. The pump includes a rotating swashplate being adapted to operate at selective angles, which dictate pump displacement ranging from zero to a maximum displacement. The pump is capable of providing a pump flow rate at the first speed when the pump swashplate is set to the maximum displacement, wherein the pump flow rate is greater than the maximum flow rate that may be received by the hydraulic circuit. | 05-21-2009 |
