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Method for regulating the traction in a line of a ladder climbing
assistance device and ladder climbing...
A method for regulating the traction in a line (13) of a ladder climbing assistance device, in which method any movement of the line (13) is sensed and in...
Firearm sound suppressor baffle
A baffle configured for use in a firearm sound suppressor is disposed along a longitudinal axis that defines a path of travel for a projectile moving from a...
Apparatus and method for generating a seismic source signal
A seismic source signal generator includes a mass, a primary accumulator and a secondary accumulator, the secondary accumulator having an internal volume...
Upper frame for excavator
An upper frame for an excavator is provided to smoothly transmit the load and shock which is transmitted through a mounting portion of a working device during...
Construction vehicle with controller for suppressing reduction of traction
force under low speed traveling...
A construction vehicle includes an engine, a hydraulic pump driven by the engine, a travel hydraulic motor driven by pressure oil discharged from the hydraulic...
Hydraulic accumulator and fire suppression system
A hydraulic pressure accumulator has an interior chamber containing a fire-suppressing gas such as nitrogen. The fire-suppressing gas in the accumulator is...
Hood system with multiple open positions
A hood system with a plurality of hood hinges is disclosed. The hood hinges associated with the hood system include a hole configured to receive a removable...
Cooling device for motorcycle engine
To enable the close arrangement of right and left cooling fans that are common to each other and rotate in the same direction. A radiator is disposed forward of...
Systems and methods for assembling a front end module to a vehicle
The present disclosure provides a Front End Module (FEM) assembly and associated assembly method with a rail system to enable efficient assembly, tighter...
Air guide plate
To prevent an engine from being thermally affected by the air that has passed a radiator. A engine and a radiator for cooling the engine are attached to the...
Power output apparatus and vehicle equipped with the same, and method for
controlling power output apparatus
When an exhaust gas switching valve is in a closed state, a target rotation speed Ne* and a target torque Te* are set in the same way as when the exhaust gas...
Method for controlling engine speed in a hybrid electric vehicle
A method for controlling operation of a hybrid powertrain is proposed, the hybrid powertrain comprising an internal combustion engine, an electric energy...
Motorized stroller apparatus
The motorized stroller apparatus features double wheels at all four corners for lesser rolling resistance over various surfaces. The front wheel sets are fully...
A heavy vehicle, such as a transport vehicle or a "civil engineering" vehicle, of a mass greater than 500 metric tons, fitted with tires of radial structure of...
Cutting element apparatuses, drill bits including same, methods of
cutting, and methods of rotating a cutting...
A rotary drill bit for drilling a subterranean formation may comprise a bit body, a cutting element coupled to the bit body, and a torque-generating assembly...
Drill bit assembly for fluid-operated percussion drill tools
The invention relates to a drill bit assembly for fluid-operated percussion drill tools comprising a percussion bit (1) having a head portion (3) formed with an...
Arrangement for processing dust
The invention relates to a method for processing dust when breaking rock, to a dust separator, and further to a rock-drilling rig. Rock material and air sucked...
Injection system and method comprising an impactor motive device
An excavation system for forming a wellbore through a subterranean formation, the system employing pressurized drilling fluid with impactors mixed therein. The...
Steering of bent housing mud motor downhole rotation device
A steerable drilling system includes a drill string carrying a bent housing, the bent housing containing or having associated therewith a drive motor arranged...
Tension/collar/reamer assemblies and methods
The present invention provides drilling assembles and methods that are especially useful for a bottom hole drilling assembly for drilling/reaming/or other...
Method and apparatus for collecting drill bit performance data
Drill bits and methods for sampling sensor data associated with the state of a drill bit are disclosed. A drill bit for drilling a subterranean formation...
Automatic control system for connecting a dual-member pipe
A system and method of making up and breaking out a dual-member drill string. The system comprises a spindle, a spindle carriage and a drive frame. The drive...
Valve tester suspension assembly
A valve tester suspension assembly for allowing one person to perform the tasks necessary to test underground valves includes an articulated arm attached to a...
Automatic gear shifting power tool
While a load torque applied to a tool shaft is lower than a predetermined value, a moving member is maintained at a first position, and a sun gear is rotated...
A hammer comprising: a body; a tool holder mounted on the body for holding a cutting tool; a handle pivotally mounted on the body about an axis; a vibration...
Multi-mode drill with mode collar
A drill includes a housing and a motor coupled to an output member by a transmission. The transmission can selectively couple the output member to an output...
Discontinuous tightening wrench comprising means for measuring dynamic
events caused by this tightening on the...
The invention relates to a discontinuous clamping wrench, of the type comprising a motor and a pulse clutch integrated in a casing, characterised in that it...
Electric hand-held power tool
An electric hand-held power tool has a housing, a double-shelled handle attached axially to the housing, a selector ring pivotably located in the housing, and...
Multistage crop roller
The multi-stage crop termination system includes a main frame assembly connected to first and second roller frames. A first roller is installed in the first...
Integrated controls for a fire suppression system
A fire suppression system having a plumbing assembly, an engine, a hose, an air-bleed valve, and a controller is provided. The controller includes a one-touch...
Circulating sub with mudsaver for dispensing and circulating fluid in a
A circulator sub tool and fluid saver with a system and method for dispensing and circulating fluid in a well bore having a threaded packer sub with a quick...
Controlling actuation of tools in a wellbore with a phase change material
A technique is provided for actuating devices deployed in a wellbore. The technique utilizes an actuator that cooperates with a downhole device, such as a well...
Electrical submersible pump with equally loaded thrust bearings and method
of pumping subterranean fluid
A rotary pump having thrust bearings includes a system for equalizing the loading on the thrust bearings. The thrust bearings are each supported on pistons that...
Reversible polymeric gelation for oilfield applications
A subterranean location accessed via a wellbore is treated with an oilfield fluid containing a viscosifying agent which is a polymer and a cross-linking agent...
Oil well perforators
An oil and gas well shaped charge perforator is provided comprising a housing, a high explosive, and a liner with a further insert liner where the high...
Methods for manipulation of the flow of fluids in subterranean formations
A method of treating a subterranean formation penetrated by a wellbore to mitigate the production of unwanted fluids from the wellbore is carried out by forming...
Apparatus and methods for allowing fluid flow inside at least one screen
and outside a pipe disposed in a well bore
Apparatus for allowing fluid flow inside at least one screen and outside a span of pipe disposed in a well bore includes at least one flow path for fluid...
Well treatment using a progressive cavity pump
Embodiments of the present invention include methods and apparatus for treating a formation with fluid using a downhole progressive cavity pump ("PCP"). In one...
Hydrocarbon recovery process
Method for increasing the recovery of crude oil from a reservoir containing at least one porous and permeable subterranean formation wherein the formation...
Well bore tool
A gas insertion tool for cleaning a well bore is connected to the down hole end of a fluid supply tubing inserted through a positioning string within a well...
One trip cemented expandable monobore liner system and method
An apparatus to protect the mounting area of casing and a locating profile and optionally a sliding sleeve valve and a flow path is provided from the outside of...
Sealed well cellar
A well cellar system includes a substantially planar base plate, the base defining an aperture sized to receive a conductor pipe. The planar base plate is an...
Apparatus and method for containing oil from a deep water oil well
An apparatus and method for containing oil from a deep water (greater than 1,000 meters) oil well is disclosed herein. The apparatus has an anchor section, a...
Electrical control for a downhole system
A method for controlling the electrical power delivered to a downhole system. The downhole system may include a power supply, a downhole tool, and a wire or...
Heat exchanger with heat exchange chambers utilizing respective medium
A heat exchange chamber includes an inlet, an outlet and a plurality of walls defining a chamber interior. The inlet receives a heat exchange medium flowing in...
Micro-structured cooler and use thereof
For providing a particularly efficient micro-structured cooler intended more specifically for cooling electronic components, it is proposed to proceed in the...
Heat dissipation device
A heat dissipation device includes a cooling fan (15) defining an air inlet and an air outlet (157) oriented perpendicular to the air inlet; a metal foam (11)...
Method for making castings by directed solidification from a selected
point of melt toward casting periphery
The invention is related to the foundry practice. According to this invention, the method for making castings by directed solidification from a selected point...
Method for guiding a cast material out of a casting chamber of a casting
system, and casting system for casting...
In a method for guiding a cast material out of a casting chamber of a casting system, the cast material is discharged from a casting chamber by means of a...
Method and apparatus for improved heat extraction from aluminum castings
for directional solidification
Method and apparatus for improving the quality and mechanical properties of an aluminum alloy engine cylinder block or other large or complex castings by...