11808 results about "Tractor" patented technology

A downhole tractor is provided that includes a housing and a first wheel assembly coupled to the housing that is operable to translate away from the housing in a first direction. The first wheel assembly has a first electric motor, a first wheel, and a first reduction gear assembly coupled between the first electric motor and the first wheel. A second wheel assembly is coupled to the housing and is operable to translate away from the housing in a second direction that is opposite to the first direction. The second wheel assembly has a second electric motor, a second wheel, and a second reduction gear assembly coupled between the second electric motor and the second wheel. A fluid ram is coupled to the first and second wheel assemblies for selectively translating the first and second wheel assemblies toward and away from the housing. A first controller is provided for controlling the flow of current to the first and second electric motors. On-board and surface control systems may be incorporated to permit selective active of the wheels assemblies. In addition, couplings and connectors employing shape-memory materials may be included to secure the tractor to coiled tubing or a wireline.

A trailer based collision warning system includes one or more side object detection sensors, one or more backup assist sensors, a driver vehicle interface, and trailer-mounted display units operating essentially independent of the tractor with all detection and warning system equipment mounted on the trailer. The trailer based collision warning system is coupled to industry-standard tractor to trailer wiring to provide the trailer with power and signals such as left turn indication and right turn indication. The side and rear sensors detect the presence and location of objects and transfer this information to a driver vehicle interface device located on the trailer. The system can also be equipped with video cameras with a means of automatically activating the camera in the area where a hazard condition has been detected. The driver vehicle interface determines the nature of the information and / or warning needed by the driver and provides this information in the form of signals sent to displays that can to assist the driver in safely maneuvering the trailer. The collision warning system can also operate in a security mode.

A hydraulic fracturing system has a pump driven by an electrically powered motor. The pump pressurizes fluid which is piped into a wellbore to fracture a subterranean formation. The pump and motor are mounted on a trailer that is hitched to a tractor. A platform assembly is mounted onto the trailer, and which is selectively moveable between deployed and stowed configurations. The platform assembly includes a platform, a lateral rail assembly mounted to the platform, and gates on the forward and aft ends of the platform. The rail assembly and gates define a safety barrier to prevent operations personnel from falling off the platform. In the stowed configuration the platform assembly is anchored in place over wheels on the trailer. In the deployed configuration, the platform assembly provides work surface so that operations personnel can readily access the pump on the trailer.

Mechanical thrombectomy apparatuses that may be configured to prevent or reduce jamming (e.g., “anti-jamming” thrombectomy devices), grab clot, and / or macerate the thrombus, e.g., clot, being removed. These mechanical thrombectomy apparatuses may include a tractor comprising a flexible tube of material that inverts as it rolls over itself while being drawn into a catheter in a conveyor-like motion. In particular, described herein are mechanical thrombectomy apparatuses having tractors selectably extendable projections that may aid in grabbing and / or macerating a clot. Also described herein are seesawing tractors for mechanical thrombectomy apparatuses.

Mechanical thrombectomy apparatuses including an inverting, rolling conveyor region (“tractor”) at the distal end that are configured to grab and remove thrombus material. In particular, described herein are mechanical thrombectomy apparatuses that are adapted to prevent premature deployment of the tractor, e.g., by including a tractor hold (e.g., a housing, a lock, a clamp, etc.) or the like to secure the outer end of the tractor against and / or relative to the elongate inversion support.

Mechanical thrombectomy systems including an elongate catheter configured as an elongate inversion support, a flexible tractor configured to roll and invert over the distal end of the elongate inversion support, and a clot engaging member on the distal end of an elongate manipulator are described herein. These systems may capture a clot using the clot engaging member and draw the clot and clot engaging member and roll the flexible tractor into the catheter to remove the clot and clot engaging member from a vessel.

Mechanical thrombectomy apparatuses (devices, systems, etc.) and methods for positioning them within a vessel and using them to remove a thrombus, e.g., clot, from within a vessel. In particular, described herein are methods of advancing an inverting tractor thrombectomy apparatus having a tractor comprising a flexible tube of material that inverts over itself as it rolls over a distal end opening of an elongate inversion support by extending the tractor region and / or a puller coupled to the tractor distally beyond the end of the catheter. Also described herein are power-driven mechanical thrombectomy apparatuses.

A hydraulic fracturing system has a pump driven by an electrically powered motor. The pump pressurizes fluid which is piped into a wellbore to fracture a subterranean formation. The pump and motor are mounted on a trailer that is hitched to a tractor. A platform assembly is mounted onto the trailer, and which is selectively moveable between deployed and stowed configurations. The platform assembly includes a platform, a lateral rail assembly mounted to the platform, and gates on the forward and aft ends of the platform. The rail assembly and gates define a safety barrier to prevent operations personnel from falling off the platform. In the stowed configuration the platform assembly is anchored in place over wheels on the trailer. In the deployed configuration, the platform assembly provides work surface so that operations personnel can readily access the pump on the trailer.

A tractor system for moving an item through a wellbore has been invented with a central mandrel interconnected with the item, first setting means about the central mandrel for selectively and releasably anchoring the system in a wellbore, the central mandrel having a top, and a bottom, and a first power thread therein, the first setting means having a first follower pin for engaging the first power thread to power the first setting means to set the first setting means against an inner wall of the bore. In one aspect, the tractor system is for moving the item through the bore at a speed of at least 10 feet per minute. In one aspect, the tractor system has second setting means on the central mandrel for selectively and releasably anchoring the system in the bore, the second setting means spaced apart from the first setting means, and the central mandrel having a second power thread therein and a second retract thread therein, the second retract thread in communication with the second power thread, and the second setting means having a second follower pin for engaging the second power thread to power the second setting means to set the second setting means against the inner wall of the bore.

An automatic guidance system for an agricultural vehicle includes a tractor, a towed implement, an absolute tractor position sensor, a relative implement position sensor, and an electronic control system. The operator inputs the implement geometry and field information into the control system. The control system combines this data with the absolute vehicle position and relative implement position to accurately guide the towed implement through a field.

A global navigation satellite system (GNSS) and gyroscope control system for vehicle steering control comprising a GNSS receiver and antennas at a fixed spacing to determine a vehicle position, velocity and at least one of a heading angle, a pitch angle and a roll angle based on carrier phase position differences. The system also includes a control system configured to receive the vehicle position, heading, and at least one of roll and pitch, and configured to generate a steering command to a vehicle steering system. A vehicle control method includes the steps of computing a position and a heading for the vehicle using GNSS positioning and a rate gyro for determining vehicle attitude, which is used for generating a steering command. Relative orientations and attitudes between tractors and implements can be determined using optical sensors and cameras. Laser detectors and rangefinders can also be used.

A tractor and a trailer are connected together and a camera is installed on the trailer side of the connected vehicles. The camera captures images behind the trailer. A driving assistance system projects the captured images on bird's-eye view coordinates parallel with a road surface to convert the images into bird's-eye view images and obtains on the bird's-eye view coordinates an optical flow of a moving image composed of the captured images. The connection angle between the tractor and the trailer is estimated based on the optical flow and on movement information on the tractor, and further, a predicted movement trajectory of the trailer is obtained from both the connection angle and the movement information on the tractor. The predicted movement trajectory is overlaid on the bird's-eye view images and the resulting image is outputted to a display device.

A wind energy capturing device for moving vehicles including a wind turbine powered electrical power generator for installation on the roof of a moving vehicle such as a truck cab or tractor. The invention takes advantage of the powerful wind force generated by the vehicle moving on the road at moderate to high speed impinging against the wind deflector mounted on the truck cab or tractor. This otherwise “wasted” wind energy is captured and directed to the face area of the rotor blade, rotating the turbine, which, in turn, drives the generator to generate electricity. The electrical energy may be stored in a battery system and used to drive the motors of an electric vehicle or hybrid-electric vehicle.

An automated aircraft towing vehicle system for use with aircraft is provided. When coupled to an aircraft the towing tractor vehicle facilitates the movement of the aircraft without the requirement for use of the aircraft's jet engines. The towing vehicle system comprises a towing tractor vehicle having remotely controllable steering, braking, and acceleration. The remote system controller is located in the aircraft being towed such that the pilot of the aircraft being towed is capable of controlling the starting, stopping and steering of the towing tractor vehicle. The towing tractor vehicle further includes a remotely controllable de-coupling means. When the aircraft is towed to the desired location, the decoupling of the aircraft from the towing tractor vehicle is controllable by the remote system controller.

Methods and apparatus for automatically adjusting the angle of a rotatable side view mirror of an articulated tractor and trailer includes transducers attached to the tractor for transmitting signals toward the trailer and for receiving signals reflected by the trailer. The transducers have a substantially symmetrical arrangement about a centerline of a linear transducer bar attached to the tractor and each has an angular orientation substantially dissimilar to adjacent transducers on a same side of the centerline. A control circuit sequentially activates ones of the transducers such that only a single transducer transmits signals at any given time. Thereafter, the control circuit only processes reflected signals received by the emitting transducer. The control circuit calculates an angle between the tractor and trailer and causes the mirrors to rotate. Transducer calibration and mirror adjustment relative to a zero position set by a driver are also contemplated.

The compound helicopter is a hybrid combination of a helicopter and a fixed wing aircraft. A conventional helicopter is modified with a nose-mounted tractor propeller to provide thrust for forward flight. Wings are added to provide lift during forward flight. With the propeller providing thrust and the wings lift during forward flight, the helicopter rotor blades are unloaded during cruising flight to allow increased forward speed by avoiding limitations of conventional helicopters, including retreating rotor blade stall and maximum rotor blade tip speeds. A single powerplant drives both the main rotor and the nose-mounted propeller. The compound helicopter employs high aspect ratio wings with large flaps that may be extended to reduce vertical drag during vertical flight and hovering operations.

A method and system are disclosed for moving equipment into and through a conduit that is preferably an oil and / or gas production well, wherein use is made of an uphole equipment storage and handling unit via which equipment modules can be moved into a launch conduit and connected to a shuttle device which is able to locomote itself as a wireless tractor via the launch conduit into and from the underlying conduit.

The invention discloses a spin milling type multifunctional machine for deeply ploughing and crushing ridges, which is based on a tractor. A hydraulic mechanism and a linking spin milling drill bit device or a cultivation component is arranged on a rear frame of the tractor; the linking spin milling drill bit device is provided with one or more drill bit shafts; spiral hinges are arranged on the drill bit shafts and provided with apical teeth; the linking spin milling drill bit device is provided with a device for preventing a straw from being wound; the hydraulic mechanism drives a spin milling drill bit to move up and down; and a gearbox drives the spin milling drill bit by a connecting rod and a gear. According to the spin milling type multifunctional machine, the drill bit enters intosoil and then vertically cuts, spin mills and crushes the soil and ensures that the soil is automatically suspended to form the ridges; the soil crushing section of the crushed ridge is T-shaped; thelower part of the compacted soil on the ground is in a U-shaped groove, so that the whole layer of the soil is in a loosing state during cultivation; and in addition, the invention plays roles of covering and replacing the soil, increases an active layer, improves the capabilities of preserving moisture and fertility and the permeability of the soil, benefits the utilization of deep growing of the crop root system to water and fertilizer, relatively reduces pests and weeds and ensures that the crop is easy to obtain high and stable yield.

An adjustable cab extender assembly (200) adapted to couple to a vehicle (100) including a tractor (102) coupled to a trailer (104) is provided. The assembly includes a dynamic cab extender (206) adjustable in length and operable to be disposed in a gap (106) extending between the tractor and the trailer. The assembly includes a speed sensor (268) operable to sense a speed of the vehicle. The assembly also includes a control system (208) coupled in signal communication with the speed sensor and coupled to the dynamic cab extender. The control system is operable to automatically adjust a longitudinal length of the dynamic cab extender to selectively adjust a proximity of a trailing edge of the dynamic cab extender relative to a front end of the trailer when the sensed speed exceeds a selected speed. The control system may also place the dynamic cab extender in a stowed position.

A tractor / trailer combination wherein a trailer is connected to a tractor through the connection of a kingpin with a fifth wheel is provided with a trailer steering system. Using given dimensions of the tractor / trailer combination and a measured articulation angle between the tractor and trailer during a turn, the wheels of the rear axles of the trailer are turned so that they turn approximately about the instant center established for the tractor. In this way, the trailer turns around approximately the same point as does the tractor, thus significantly eliminating off tracking.

A substantially constant force actuator that is applicable to centralizers, anchors and tractors for use in wells and is applicable to lifting devices such as jacks and load supporting devices. One or more sets of linkage arms are angularly movable by the force of one or more force transmitting members from a minimum angle with the force transmitting members at maximum spacing to a maximum angle with the force transmitting members at minimum spacing to impart a substantially constant force to an object or surface, with the direction of the force being substantially perpendicular to the direction of relative linear movement of the force transmitting members. With the linkage arms at their minimum angles, movement control elements on at least one of the force transmitting members react with guide surfaces of the linkage arms to achieve angular linkage movement and to develop a substantially constant force during angular linkage movement.

A prosthetic foot with an adjustable ankle includes an upper portion coupled to a socket of an amputee. A lower portion is adjustably coupled to the upper portion, and is attached to a foot member with heel and toe sections. A movable coupling is disposed between the upper and lower portions, and includes a displacement member slidably coupled to a displacement track. The movable coupling allows the toe section to pivot downward and the heel section to simultaneously displace forward. The adjustable ankle can be adjusted with an actuator coupled to a tractor bolt coupled between the upper and lower portions. A sensor is associated with the upper portion or the lower portion to sense frequency of contact, force of contact, or orientation of the upper portion or the lower portion, and to output a corresponding output signal.

The invention relates to a method for determining a set steering angle β0 of steered wheels of a vehicle comprising a tractor and a trailer that is articulated with regard to the tractor. This method makes it possible to produce a set value that can be used for various purposes. This set value can thus be used for controlling an actuator acting upon the steering angle or for being communicated in order to inform the driver. According to the invention, during reversing maneuvers: based on a target point C via which the driver would like the path of the vehicle to pass, an angle set value ?c between the axes of the trailer and of the tractor is determined according to said target point C and to the dimensions of the vehicle, and; the set steering angle β of the steered wheels is determined according to a servo-system causing the measured angle ? between the axis of the trailer and the tractor to tend toward said angle set value ?c.

A serial hybrid drive system for off-road utility vehicles and / or riding tractors including one or more electric motors (8, 8a, 8b) for driving the vehicle. The motors are connected to the driven wheels (11), with or without individual gear boxes 9a, 9b) or transmissions, to turn the wheels. The vehicle includes an electric generator (4) connected to the vehicle engine (2) for supplying power to a fast charging battery pack (6), which in turn feeds power to the motors. One or more motors may also be provided for operating accessory implements of the vehicle. These motors and vehicle generator receive operational instructions from one or more controllers (14, 16, 18), which may be programmed to adjust personality settings for the drive system.

A system and method for integrating air and ground transportation of passengers and cargo. The system comprises a plurality of universal passenger containers. The system further comprises a plurality of universal cargo containers. An airplane is provided with a hollow fuselage adapted to be loaded with a plurality of passenger and / or cargo containers. A flatbed trailer can be provided to carry a passenger or a cargo container. A tractor vehicle can be provided to transport flatbed trailers between airplanes, locations within the airport, and points of origin and destination outside the airport complex. A system can be provided to load and unload passenger and cargo containers into and out of airplanes at the airport. A system is provided comprised of an airport complex including take-off and landing runways, taxiways, airplane staging areas, apparatus for detection of weapons in passenger and cargo containers, and air terminals with arrival and departure gates and baggage handling conveyors. A system is also provided comprised of remote air terminals at strategic locations a distance from the airport complex.

The invention discloses a full-mechanical rapid sleeper replacement machine which comprises a vibration rotary excavating and ballast removing device, a ballast collecting and discharging device, a vibration ballast pushing device, a four-nut synchronous assembly and disassembly device, a sleeper lifting and rotating device, a sleeper pushing and pulling device, a sleeper hoisting device, a rail car, a power generator, a hydraulic system box, a first camera assembly, a second camera assembly, a third camera assembly, a fourth camera assembly, a fifth camera assembly, a sixth camera assembly and a monitor. A plurality of casters and two longitudinal beams are arranged on the rail car, the vibration rotary excavating and ballast removing device, the ballast collecting and discharging device, the vibration ballast pushing device, the four-nut synchronous assembly and disassembly device, the sleeper lifting and rotating device, the sleeper pushing and pulling device, the sleeper hoisting device, the power generator and the hydraulic system box are arranged on the two longitudinal beams of the rail car, and the monitor is arranged in a cab of a tow tractor. The full-mechanical rapid sleeper replacement machine is suitable for rapid sleeper replacement on straight-line and curved rail rod segments, operating time in repairing skylight through limited line can be made full and reasonable use of, and full-mechanical sleeper replacement can be achieved.

The invention discloses a production technique of copper strips for solar modules, which belongs to the technical field of nonferrous metal processing and comprises the following steps: drawing-up of continuous-casting oxygen-free copper bar: using high-quality electrolytic copper as the raw material, melting at 1150+ / -10 DEG C, keeping the temperature, covering the copper liquid surface with charcoal and graphite scales to ensure the vacuum state during melting, degassing on line, deoxidizing, stirring, and drawing up the copper bar with a tractor set in an on-off vacuum way; continuous extrusion of copper strip blanks: using oxygen-free copper rods as the raw material, producing copper strip blanks by using a continuous extruder set, cooling the extruded copper strip blanks through a vacuum oxidation-resisting pipe and a water tank, drying and coiling; and rough-rolling the copper strip blanks, medium-rolling, interstage annealing, finish rolling, degreasing, washing, annealing the finished product, washing, grinding the surface to passivate, and longitudinally cutting to obtain the finished product. The product of the invention has the advantages of high purity, low oxygen content and high electrical conductivity.

An agricultural row unit for use with a towing frame hitched to a tractor includes an attachment frame adapted to be rigidly connected to the towing frame, a linkage pivotably coupled to the attachment frame, and a row unit frame having a leading end pivotably coupled to the linkage to permit vertical pivoting movement of the row unit frame relative to the attachment frame. A hydraulic cylinder coupled to the attachment frame and the linkage, for urging the row unit frame downwardly toward the soil, includes a movable ram extending into the cylinder, and a hydraulic-fluid cavity within the cylinder for receiving pressurized hydraulic fluid for advancing the ram in a direction that pivots the linkage and the row unit frame downwardly toward the soil. An accumulator positioned adjacent to the hydraulic cylinder has a fluid chamber containing a diaphragm, with the portion of the chamber on one side of the diaphragm being connected to the hydraulic-fluid cavity in the hydraulic cylinder, and the portion of the chamber on the other side of the diaphragm containing a pressurized gas.