Abstract: A loader can include a lift arm structure coupled to a frame. The lift arm structure can move between a fully-lowered position and a fully-raised position and can include a lift arm and a connecting link. A first end of the connecting link can be pivotally coupled to the frame at a first pivot point and the lift arm can be pivotally coupled to a second end of the connecting link a second pivot point. The lift arm structure can further include a lift actuator configured to pivot the lift arm about the second pivot point and an extension actuator configured to pivot the connecting link about the first pivot point. The extension and lift actuators can be controlled to move the lift arm along a variety of travel paths between any two points within a lift envelope of the lift arm structure.

Abstract: A power machine can include a frame, a power source, one or more workgroup actuators, and one or more tractive assemblies secured to the multi-piece frame. The frame can include a base frame and a bridge frame. The bridge frame can support the one or more actuators and the one or more tractive assemblies relative to the base frame. The tractive assemblies can include one or more drive actuators that is supported by the bridge frame. The base frame can support the power source relative to the bridge frame.

Abstract: Disclosed are front entry cabs, and power machines with front entry cabs, having a door that is moveable between opened and closed positions. In the opened position, the door is positioned within an operator compartment of the cab above the operator seat and below a top of the cab. A linkage system defines the travel path of the door between closed and opened positions. The linkage system is configured to minimize interference with operator visibility.

Abstract: A lift arm assembly for a power machine can include a lift arm, an implement carrier, a lift cylinder that raises or lowers the lift arm, a leveling link, a tilt cylinder that causes the implement carrier to pivot relative to the lift arm, and an isolated hydraulic circuit. The isolated hydraulic circuit can include a follower cylinder that is mechanically synchronized with the lift cylinder, a leveling cylinder that can be pivotally secured to the leveling link and to the lift arm, a first conduit that can provide hydraulic flow between base ends of the follower and leveling cylinders, and a second conduit that can provide hydraulic flow between rod ends of the follower and leveling cylinders. Movement of the follower and leveling cylinders can be hydraulically synchronized by flow through the first and second conduits.

Abstract: A hydraulic assembly for an extendable lift arm assembly can include an extension cylinder, a leveling cylinder, a main control valve, a flow combiner/divider, and one or more flow-blocking arrangements. The main control valve can be configured to control commanded movement of the extension and leveling cylinders of the lift arm assembly. The flow combiner/divider can be configured to hydraulically link the extension cylinder with the leveling cylinder for synchronized operation of the extension cylinder and the leveling cylinder. The one or more flow-blocking arrangements can be configured to restrict flow from rod or base ends of the leveling or extension cylinders during commanded extension or retraction of the leveling and extension cylinders, or in the absence of commanded movement of the leveling and extension cylinders, to maintain synchronized orientation of the leveling and extension cylinders.

Abstract: A hydraulic assembly for an extendable lift arm assembly can include an extension cylinder, a leveling cylinder, a main control valve, a flow combiner/divider, and one or more flow-blocking arrangements. The main control valve can be configured to control commanded movement of the extension and leveling cylinders of the lift arm assembly. The flow combiner/divider can be configured to hydraulically link the extension cylinder with the leveling cylinder for synchronized operation of the extension cylinder and the leveling cylinder. The one or more flow-blocking arrangements can be configured to restrict flow from rod or base ends of the leveling or extension cylinders during commanded extension or retraction of the leveling and extension cylinders, or in the absence of commanded movement of the leveling and extension cylinders, to maintain synchronized orientation of the leveling and extension cylinders.

Abstract: Disclosed embodiments include power machines, such as front-end loaders and utility vehicles, with a lift arm and a bucket leveling system utilizing four-bar linkages which mechanically level an attached implement as the lift arm is raised and lowered.

Abstract: Disclosed are front entry cabs, and power machines with front entry cabs, having a door that is moveable between opened and closed positions. In the opened position, the door is positioned within an operator compartment of the cab above the operator seat and below a top of the cab. A linkage system defines the travel path of the door between closed and opened positions. The linkage system is configured to minimize interference with operator visibility.

Abstract: Disclosed are front entry cabs, and power machines with front entry cabs, having a door that is moveable between opened and closed positions. In the opened position, the door is positioned within an operator compartment of the cab above the operator seat and below a top of the cab. A linkage system defines the travel path of the door between closed and opened positions. The linkage system is configured to minimize interference with operator visibility.

Abstract: A hydraulic assembly for an extendable lift arm assembly can include an extension cylinder, a leveling cylinder, a main control valve, a flow combiner/divider, and one or more flow-blocking arrangements. The main control valve can be configured to control commanded movement of the extension and leveling cylinders of the lift arm assembly. The flow combiner/divider can be configured to hydraulically link the extension cylinder with the leveling cylinder for synchronized operation of the extension cylinder and the leveling cylinder. The one or more flow-blocking arrangements can be configured to restrict flow from rod or base ends of the leveling or extension cylinders during commanded extension or retraction of the leveling and extension cylinders, or in the absence of commanded movement of the leveling and extension cylinders, to maintain synchronized orientation of the leveling and extension cylinders.

Abstract: A reactor, which includes a reactor body and two reactor ends sealing the ends of the reactor body, a plurality of reactor tubes extending inside the reactor body at least partially between the reactor ends, and at least one heat pipe disposed inside at least one of the reactor tubes.

Abstract: Disclosed embodiments include power machines, such as front-end loaders and utility vehicles, with a lift arm and a bucket leveling system utilizing four-bar linkages which mechanically level an attached implement as the lift arm is raised and lowered.

Abstract: Power machines such as excavators having a house that rotates about a vertical axis on an undercarriage are disclosed. In certain conditions, a control system on the excavator can limit rotational movement of the house and/or pivoting of a swing function on a lift arm to contain work performed by an implement to a predefined range or work area.

Abstract: Disclosed are front entry cabs, and power machines with front entry cabs, having a door that is moveable between opened and closed positions. In the opened position, the door is positioned within an operator compartment of the cab above the operator seat and below a top of the cab. A linkage system defines the travel path of the door between closed and opened positions. The linkage system is configured to minimize interference with operator visibility.

Abstract: Power machines such as excavators having a house that rotates about a vertical axis on an undercarriage are disclosed. In certain conditions, a control system on the excavator can limit rotational movement of the house and/or pivoting of a swing function on a lift arm to contain work performed by an implement to a predefined range or work area.

Abstract: A reactor, which includes a reactor body and two reactor ends sealing the ends of the reactor body, a plurality of reactor tubes extending inside the reactor body at least partially between the reactor ends, and at least one heat pipe disposed inside at least one of the reactor tubes.

Abstract: A second synthetic dataset is generated having internal consistencies with a previously generated first synthetic dataset. The synthetic data of the second dataset can be generated based on a set of rules loaded into a computer data generator for defining entities and interrelationships among events associated with the entities consistent with at least some of the rules previously used for generating the first synthetic dataset. Entities and historical information about the entities within a first observation spanning a first time period can be derived from the first synthetic dataset stored in a computer-readable memory. A second observation window can be established spanning a second time period that is different from the first time period.

Abstract: A system for the production of synthesis gas and, for the production thereof, where the system is preferably a net carbon dioxide absorber. The invention covers both the methodology for the development of the process and the system for the implementation of the process, inclusive of the required utility systems.

Abstract: A data generation system provides for generating domain-specific, context-sensitive data collections as synthetic data for testing the performance of data processing systems. Within the data generation system, a composition module defines a data generation template containing a plurality of fields each capable of holding one or more values according to specifications defined for predetermined data types. An evaluation module sorts the fields in an order of dependency so that fields whose values affect the values in other of the fields are ordered before the fields whose values are affected by values in other fields. A data generation module populates the fields with values and retrieves a subset of the values populating the plurality of fields for generating each of a plurality of data sets, which are written into memory and made accessible for use in testing data processing systems.

Abstract: Embodiments disclosed herein may relate to at least partially addressing latency, such as network communication latency, as may occur between a client and server, for example.