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7628219 |
Handle with detecting unit
A handle for an electric hand tool, which in use, is detachably connected to the hand tool as an auxiliary handle ( 2 ), includes at least one detection device ( 6 ), which communicates with at...
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7600577 |
Device for sensing the direction of rotation of a hand tool comprising an electric motor
A device for sensing a direction of rotation of a hand tool having an electric motor, has a rotatably supported brush plate provided in the electric motor and located in different positions...
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7556103 |
Tightening tool and tightening tool management system
A fastening tool with a clutch for shutting off transmission of torque, capable of self-diagnosing fastening torque of a screw or the like at low cost without using expensive elements such as a...
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7540334 |
Power tools
An electrically powered hand tool is disclosed. The tool includes a motor, a power source, a work element and a controller. Various alternative features, embodiments and operative configurations...
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7487844 |
Drill with solid state speed control
A power tool includes solid-state motor control. The tool includes a solid state variable speed control signal generator for generating a variable speed control signal, a microcontroller for...
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7487845 |
Safety mechanism for a rotary hammer
An improved method is provided for controlling a power tool having a rotary shaft. The method includes: disposing an inertial mass in a housing of the power tool, such that the inertial mass is...
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7481627 |
Air compressor tools that communicate with an air compressor
An air compressor utilizing an electronic control system. A pneumatically controlled regulator is provided for controlling output pressure for an air compressor. Digital gauges are provided on the...
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7464769 |
Electric screwdriver and a controller thereof
An object of the present invention is to provide an electric screwdriver device having a function for determining that a correct tightening operation has been carried out when the tightening...
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7424920 |
Method and device for impact loosening of thread joints
A method and device for detecting and responding to impact loosening of thread joints at rock drilling, in which vibrations from a drill string ( 1 ) are sensed at the same time as a rock drilling...
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7404449 |
Pile driving control apparatus and pile driving system
A pile driving control apparatus for a pile driving system includes a hydraulic control system that controls a throttle of a pile driving hammer, and thereby controls an impact velocity of the...
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7395871 |
Method for detecting a bit jam condition using a freely rotatable inertial mass
An improved method is provided for controlling a power tool having a rotary shaft. The method includes: disposing an inertial mass in a housing of the power tool, such that the inertial mass is...
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7369916 |
Drill press
A power tool control system connected with a drill press provides a system for determining operational settings for the drill press and/or structural factors of a workpiece to be operated upon by...
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7334648 |
Rotary impact power tool
A impact power tool includes a motor rotating a drive shaft, an output shaft holding a tool bit, and a hammer coupled to the drive shaft. The hammer is rotatable together with the drive shaft and...
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7331406 |
Apparatus for controlling a fastener driving tool, with user-adjustable torque limiting control
An improved hand-held fastener driving tool is provided with an adjustable torque limiting control. The tool is portable, and is electrically powered using either a battery pack or a power cord as...
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7318485 |
Method of Controlling the direction of rotation of a power tool
The invention discloses a power tool for screwing or drilling having a motor for driving a drive shaft, a controller for controlling the power tool, a motor switch for switching the motor on and...
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7306046 |
Portable power tool
A hand power tool has an electric motor, which is located in a housing and by way of which a tool insert located in a tool retainer is drivable in rotation, a guard device with which an...
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7267182 |
Rock drilling rig and rock breaking machine
The rock drilling rig comprises a first control unit ( 8 ) arranged on a carrier ( 1 ) and a second control unit ( 9 ) arranged to a rock drilling apparatus ( 4 ). The first control unit ( 8 ) and...
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7261586 |
Cord sleeve, and device provided therewith
An electric hand power tool has a housing, a drive motor, a power cord extending to an outside from the housing and supplying energy to the drive motor, wherein the power cord has an exit region...
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7234536 |
Power screwdriver
A power screwdriver is disclosed having a drive which is coupled via a clutch, disengaging as a function of torque, to a tool drive shaft for driving a tool. The screwdriver comprises an electronic...
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7231989 |
Drilling control arrangement
A method and a control system for controlling rock drilling. A control unit of a rock drilling apparatus is provided with one or more control modes, each determining the drilling variables to be...
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7216723 |
Pulse torque generator and power tool having the same
A pulse torque generator utilizing a magnetic coupling, and an electric power tool provided with the pulse torque generator. The pulse torque generator includes an input shaft extending in its...
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7210541 |
Transducerized rotary tool
Disclosed herein is a variable speed tool useful for use with securing or removing industrial fasteners. The tool also includes a means to torque the fastener to a certain precise torque. The tool...
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7204322 |
Power tool having pneumatic vibration dampening
It is an object of the present invention to provide a vibration reducing technique caused by air pressure fluctuations within a power tool. According to the present invention, a representative...
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7204320 |
Active rotational balancing system for orbital sanders
A system for active dynamic balancing of a rotating tool driven by a motor having a shaft supported by a first and second bearing on opposing sides of the motor includes an acceleration sensing...
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7182147 |
Tool apparatus, system and method of use
A system, and a method of using a system, for controlled tool operation. The method includes providing a tool used in a force application such as a such torque application. The tool communicates...
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7168502 |
Electric power tool with locking mechanism
An electric power tool has a motor-driven circular tool that can be clamped by means of a clamping device. A mechanical braking device ( 2 ) serves to brake the tool. A safety element ( 4 )...
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7156188 |
Pile driver with energy monitoring and control circuit
A pile driver comprises a hammer for impacting a pile, a velocity sensor for measuring the velocity at impact, and a control system for adjusting the hammer stroke in accordance with the readings...
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7121358 |
Power tools
An electrically powered hand tool is disclosed. The tool includes a motor, a power source, a work element and a controller. Various alternative features, embodiments and operative configurations...
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7114576 |
Method and arrangement of controlling of percussive drilling based on the stress level determined from the measured feed rate
The rock drill apparatus ( 1 ) comprises a rock drill machine ( 6 ) provided with a percussion device ( 4 ), a feed device ( 9 ) and a tool ( 7 ), the tool ( 7 ) end comprising a bit ( 8 ) for...
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7104342 |
Active rotational balancing system for orbital sanders
A system for active dynamic balancing of a rotating tool driven by a motor having a shaft supported by a first and second bearing on opposing sides of the motor includes an acceleration sensing...
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7093668 |
Power tools
An electrically powered hand tool is disclosed. The tool includes a motor, a power source, a work element and a controller. Various alternative features, embodiments and operative configurations...
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7090030 |
Tranducerized torque wrench
Disclosed herein is a variable speed tool useful for use with securing or removing industrial fasteners. The tool also includes a means to torque the fastener to a certain precise torque. The tool...
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7090031 |
Intelligent tightening spindle with integrated measurement transducer, servo amplifier, and data processing unit
An intelligent tightening spindle comprises a drive output; a housing adapted to detachably mount to a moving platform of a multi-tool processing station, with the housing substantially enclosing:...
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7086483 |
Electric tool
An electric tool having the capability of achieving a high working efficiency is provided. This tool comprises an output shaft rotated by reversible motor, a rotational-direction switch for...
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7055620 |
Hand-held machine tool
The invention is based on a hand power tool having an electric motor ( 12 ) located in a housing ( 10 ), via which an insertable tool ( 16 ) situated in a tool mount ( 14 ) is capable of being...
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7036703 |
Hand-held working tool
The present invention relates to a hand-held working tool, such as a setting device used for driving fastening elements such as nails, bolts, pins and the like into a surface, or an at least...
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7036605 |
Power tools
A detector is disclosed that detects impact sounds, e.g., a hammer striking an anvil or oil pulses from an oil unit. The detector may comprise a receiver that selectively converts sound within a...
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7013984 |
Powered tool
A tool for a powered machine, having vibration damping member. A method of providing a tool having a vibration damping member arrangement, applicable to different tools, is described. Estimated...
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7011165 |
Rotating electric hand tool implement with safety routine
An electric hand tool apparatus ( 1 ) for driving a drill-like tool, which carries out an at least partial rotational movement, has within a housing ( 2 ), an electric motor ( 4 ) without or free...
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6981557 |
Process for controlling an axially hammering and rotating electric hand-held machine tool
A control process for an at least partially axially hammering and rotating electric hand-held machine tool ( 1 ) in which an electromagnetic clutch ( 4 ) arranged in the flow of force between an...
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6978846 |
Power tool used for fastening screw or bolt
In a power impact tool for fastening a screw or a bolt, malfunction that driving of a motor is stopped before the screw or the bolt is fastened completely can be prevented. A fastening judger...
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6971454 |
Pulsed rotation screw removal and insertion device
A drill/driver (e.g. an electric drill) with a screwdriver bit attachment, and a method of controlling the drill/driver, are described. This method of control will greatly reduce the occurrence of...
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6971567 |
Electronic control of a cordless fastening tool
A fastening tool that drives a fastener into a work-piece. The tool includes a motor that is connected to a transmission. The transmission includes a flywheel. The tool also includes a driver...
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6965822 |
Work vehicle including startup control current calibration mechanism for proportional control systems
A method of calibrating the control current startup threshold in a proportionally controlled drive system for a work vehicle is disclosed. To determine a current threshold value for use in the...
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6945337 |
Power impact tool
In a power impact tool for fastening a fastening member, a torque for fastening the fastening member can be estimated without using a high-resolution sensor and a high-speed processor. The power...
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6945336 |
Rotational float for rotating equipment
A rotational float system ( 44 ) that is meant to be used with existing side load protection systems and that may be selectively operated to permit a digger derrick rotation motor ( 20 ) or other...
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6923268 |
Electric rotational tool driving switch system
An electric or power rotational tool including a driving switch of a push operating system that switches the electric motor ON when the rotational tool contacts a work object such as a screw, etc....
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6923269 |
Demolition hammer and/or hammer-drill with a percussion device suitable for releasing clamped objects by striking
The invention relates to a demolition hammer and/or hammer drill comprising a percussion generating device having a percussion piston moving axially back and forth. In a main percussion mode, the...
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6918449 |
Magnetic impact tool
There is provided a magnetic impact tool comprising a magnetic hammer driven by a motor, a magnetic anvil disposed so as to face the magnetic hammer, an output shaft that rotates together with the...
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6913087 |
System and method for communicating over power terminals in DC tools
A system and method for unidirectionally or bi-directionally communicating information and data to and from an electronic module housed within a cordless power tool, over power terminals of the...
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