Abstract: The present disclosure relates to a portable socket holder for sockets or bits connectable to a power tool. The portable socket holder comprising socket compartments for different types of sockets or bits. The portable socket holder further comprising visually indication means arranged to visually indicate a socket compartment. Further the portable socket holder comprising a processor and a memory containing instructions executable by the processor, wherein the portable socket holder is operative to visually indicate by means of the visually indication means a socket compartment. The portable socket holder further comprising tightening joint element compartments for different types of tightening joint elements. The portable socket holder further comprising visually indication means arranged to visually indicate a tightening joint compartment.

Abstract: The present disclosure relates to a power screw driver comprising a housing. The housing encloses a motor and a bit drive spindle at a front end for driving a bit. The power screw driver is at the front end connectable to a vacuum adapter having screw pick-up functionality by which a screw to be mounted is brought into engagement with the bit. The power screw driver further comprises an in the housing integrated vacuum sensor arranged to sense the sub-atmospheric pressure in the vacuum adapter.

Abstract: A method is used for tightening screw joints by a power tool which includes a manually operated trigger for controlling power supply to the power tool, and a power shut-off mechanism for automatic discontinuation of the power tool operation as a predetermined tightening level is reached. The method includes continuously indicating a position of the trigger, indicating a status of the power shut-off mechanism, and disabling the power tool in an inoperative state for a predetermined time if the trigger is indicated as inactivated without the shut-off mechanism being indicated as activated.

Abstract: An aggregate bin heater assembly having a bin for receiving aggregate therein and a plurality of fluid inlets supported at vertically spaced apart elevations relative to the bin for distributing a heating fluid into the aggregate within the bin, further includes a control system for controlling distribution of the heating fluid. A pressure sensor associated with at least an uppermost one of the fluid inlets so as to be arranged to sense pressure within the bin at the respective elevation. A controller determines a low pressure condition if the pressure sensed by the pressure sensor is lower than a prescribed normal pressure. A valve associated with the uppermost one of the fluid inlets shuts off the flow of heating fluid to the uppermost one of the fluid inlets responsive to determination of the low pressure condition by the controller.

Abstract: A method is used for tightening screw joints by a power tool which includes a manually operated trigger for controlling power supply to the power tool, and a power shut-off mechanism for automatic discontinuation of the power tool operation as a predetermined tightening level is reached. The method includes continuously indicating a position of the trigger, indicating a status of the power shut-off mechanism, and disabling the power tool in an inoperative state for a predetermined time if the trigger is indicated as inactivated without the shut-off mechanism being indicated as activated.

Abstract: A system for determining a position of a power tool, movable within a local area, includes a sender unit attached to the power tool, at least one receiver located within the local area, and a processing unit connected to the at least one receiver, wherein the sender unit is arranged to send localization signals reflecting identity data to be picked up by the at least one receiver. Identity data is transferred to the sender unit from a memory on the power tool when the sender unit is installed on the power tool, whereby no reprogramming of the system is required in case of replacement of the sender unit.

Abstract: An aggregate bin heater assembly having a bin for receiving aggregate therein and a plurality of fluid inlets supported at vertically spaced apart elevations relative to the bin for distributing a heating fluid into the aggregate within the bin, further includes a control system for controlling distribution of the heating fluid. A pressure sensor associated with at least an uppermost one of the fluid inlets so as to be arranged to sense pressure within the bin at the respective elevation. A controller determines a low pressure condition if the pressure sensed by the pressure sensor is lower than a prescribed normal pressure. A valve associated with the uppermost one of the fluid inlets shuts off the flow of heating fluid to the uppermost one of the fluid inlets responsive to determination of the low pressure condition by the controller.

Abstract: A method and a device are provided for locking the operation of a power wrench to the location of an unacceptably tightened screw joint or object with a sensor for at least one tightening parameter. A position sensing system is provided for indicating continuously the position of the power wrench during tightening operations, and a control unit includes a unit for comparing obtained tightening parameter values with predetermined limit values and to provide an OK or a NOK signal in response to those limit values being passed or not for each screw joint. A locking device is provided to lock the power wrench operation to the very position of the screw joint or the object for which a NOK signal has been issued until the unacceptably tightened screw joint has been attended to and the NOK signal is removed.

Abstract: A location system for determining the position of a movable object (12) like a power wrench in a three dimensional space and comprising a number of stationary signal communication modules (15, 16 and 17) and a movable signal communication module (18) carried by the movable object (12), wherein the stationary signal communication modules (15, 16 and 17) are connected to an evaluation and calculation unit (24) which is arranged to determine the position of the movable object (12) in response to the signals delivered by the stationary signal communication modules (15, 16 and 17) and based on signals communicated between the movable signal communication module (18) and the stationary signal communication modules (15, 16 and 17). At least one (16) of the stationary signal communicating modules (15, 16 and 17) is displaceable between two or more positions (A,B) to enable signal communication contact with the movable signal communicating module (18) in normally screened off positions.

Abstract: A portable electric power tool including a housing (10) with a connection terminal (20) for connection of a voltage supply source (22), an electric motor (14), an onboard operation control unit (16) and a radio communication device(17) for communicating tool operation and operation result data between the operation control (16) unit and a stationary data processing unit (18), and a back-up voltage accumulating device (25) arranged to keep up continuously a voltage supply to the control unit (16) and a radio communication device (17) at disconnection of the voltage supply source (22).

Abstract: A power tool includes an electric motor including a rotor and a stator, a torque sensor for measuring the torque value during tightening of rotatable fastening elements, and an operation control unit, integrated in or in communication with the power tool. The power tool has a device for preventing rotation of the rotor. A method for tightening rotatable fastening elements by use of the power tool is also disclosed.

Abstract: A method and a device are provided for locking the operation of a power wrench to the location of an unacceptably tightened screw joint or object with a sensor for at least one tightening parameter. A position sensing system is provided for indicating continuously the position of the power wrench during tightening operations, and a control unit includes a unit for comparing obtained tightening parameter values with predetermined limit values and to provide an OK or a NOK signal in response to those limit values being passed or not for each screw joint. A locking device is provided to lock the power wrench operation to the very position of the screw joint or the object for which a NOK signal has been issued until the unacceptably tightened screw joint has been attended to and the NOK signal is removed.

Abstract: A power tool includes an electric motor including a rotor and a stator, a torque sensor for measuring the torque value during tightening of rotatable fastening elements, and an operation control unit, integrated in or in communication with the power tool. The power tool has a device for preventing rotation of the rotor. A method for tightening rotatable fastening elements by use of the power tool is also disclosed.

Abstract: A battery energized portable power tool has a pistol type housing with a connector for attachment of a replaceable battery unit, and an upgrading module insertable between the housing and the battery unit and being provided with accessories for adding extra operational features to the tool for meeting specific demands for different tool applications, for instance a transceiver for wireless signal communication with a stationary control unit.

Abstract: A power tool system includes a portable power tool (10), a stationary control unit (11), and a cable assembly (12), which includes a multi-core cable 15 and connection pieces (13, 14), for communicating power and/or signals between the power tool (10) and the control unit (11). The cable assembly (12) is provided with an electronic memory module in the form a data chip (16) for storing data relating to the identity and operation characteristics of the cable assembly (12) as well as data concerning the compatibility of the power tool (10), the control unit (11) and the cable assembly (12). The data chip is arranged to register and accumulate the number power tool operations performed via the cable assembly (12) and to indicate when a predetermined limit for power tool operations as regards mechanical wear of the cable assembly (12) is reached.

Abstract: A portable tool is connected to a remotely located operation controlling and/or monitoring control it via a multi-core cable. The multi-core cable is connected to the tool by a standard type multi-connector plug and jack connection to supply electric power and/or electric signals between the tool and the control unit. At least one signal producing element is provided on an upgrading module. The upgrading module is insertable between the tool and the multi-core cable via mating multi-connector plug and jack connections, and forms a readily exchangeable adapter. The upgrading module is individually designed to meet the demands of a particular operator, thereby adapting a standard type portable tool to a certain application without involving any re-building of the tool.

Abstract: A portable tool including maneuver and/or signal producing means (22-25) connected to a remotely located operation controlling and/or monitoring control unit via multi-core cable (16) which is connected to the tool by means of a standard type multi-connector plug and jack connection (17) so as to supply electric power and/or electric signals between the tool and the control unit, the maneuver and/or signal producing means are located to an upgrading module (20) which via mating multi-connector plug and jack connections (21) is insertable between the tool and the cable (16) and forms a readily exchangeable adapter, wherein the upgrading module (20) is individually designed to meet the demands of a particular operator, thereby adapting a standard type portable tool to a certain application without involving any re-building of the tool.

Abstract: A power tool system comprises a portable power tool (10), an operation control device (11) including an integrated memory (16) for storing power tool operation data, and an auxiliary memory module (18) normally containing the same power tool operation data as the integrated memory (16) easily connectable and disconnectable in relation to the control the operation control device (11), wherein the auxiliary memory module (18) serves as a removable back-up memory intended to carry operation data from one operation control device to another, notwithstanding the control device being integrated part of a battery powered tool or a separate unit at a main powered tool.

Abstract: A power tool system comprises a portable power tool (10), an operation control device (11) including an integrated memory (16) for storing power tool operation data, and an auxiliary memory module (18) normally containing the same power tool operation data as the integrated memory (16) easily connectable and disconnectable in relation to the control the operation control device (11), wherein the auxiliary memory module (18) serves as a removable back-up memory intended to carry operation data from one operation control device to another, notwithstanding the control device being integrated part of a battery powered tool or a separate unit at a mains powered tool.