Abstract: A vibration suppressing handle arm (600) for an early entry concrete saw, the handle comprising a joint separating the handle into a first elongated part (120) and a second elongated part (140), wherein the first and second elongated parts are arranged pivotable with respect to each other about the joint, wherein the first part (120) has an elongation direction configured to align with an elongation direction of the second part (140) to form an elongation direction of the handle when the handle is in an unfolded position, the handle further comprising a resilient element arranged to resist but not prevent pivoting by the first elongated part (120) and the second elongated part (140) about the joint.

Abstract: A floor saw (100) for sawing in a concrete surface segment (160), the floor saw comprising a circular cutting blade (110), at least two drive wheels (120) arranged to support the floor saw on the concrete surface segment (160), a sensor arrangement (140) configured to determine a current yaw motion of the floor saw, and a control unit (130) configured to receive a desired yaw motion setting, wherein the at least two drive wheels (120) are arranged to be driven at respective first and second wheel speeds, and wherein the control unit (130) is arranged to control a difference between the first and second wheel speeds to reduce a difference between the current yaw motion of the floor saw and the desired yaw motion setting.

Abstract: A concrete processing system (200) for determining an onset of a first time window (301) for a concrete processing operation in a first area (A), the system (200) comprising one or more concrete sensors (220), a data processing system (240) and a timing support tool (250), wherein the one or more concrete sensors (220) are configured to determine a temperature and/or a moisture level of a maturing concrete slab in the first area (A), and to transmit sensor data indicating the temperature and/or moisture level via respective first communication links (230) to the data processing system (240), the data processing system (240) comprising a database (243) and processing circuitry (242) configured to determine a concrete maturity level for the first area (A) based on the sensor data, to estimate the onset of the first time window based on the concrete maturity level and on data associated with the concrete processing operation stored in the database (243), and to transmit timing data indicating the onset of the fi

Abstract: A floor saw for sawing in a concrete surface segment (160), the floor saw comprising a circular cutting blade (110) arranged transversally offset from a centrum line (C), which centrum line (C) is aligned with a forward direction (F) of the floor saw, the floor saw further comprising at least two supporting wheels (120) arranged to support the floor saw on the concrete surface segment (160), out of which supporting wheels at least one is a drive wheel, a sensor arrangement (140) configured to determine a current yaw motion of the floor saw, and a control unit (130) configured to obtain a desired yaw motion setting, wherein the drive wheel is arranged on an opposite side of the centrum line (C) compared to the circular cutting blade (110) and arranged to generate a respective variable wheel force by a respective first electric machine controlled by the control unit (130), and wherein the control unit (130) is arranged to control the first electric machine to reduce a difference between the current yaw motion o

Abstract: A floor saw for sawing in a concrete surface segment (160), the floor saw comprising a circular cutting blade (110) arranged transversally offset from a centrum line (C), which centrum line (C) is aligned with a forward direction (F) of the floor saw, the floor saw further comprising at least two supporting wheels (120) arranged to support the floor saw on the concrete surface segment (160), out of which supporting wheels at least one is a drive wheel, a sensor arrangement (140) configured to determine a current yaw motion of the floor saw, and a control unit (130) configured to obtain a desired yaw motion setting, wherein the drive wheel is arranged on an opposite side of the centrum line (C) compared to the circular cutting blade (110) and arranged to generate a respective variable wheel force by a respective first electric machine controlled by the control unit (130), and wherein the control unit (130) is arranged to control the first electric machine to reduce a difference between the current yaw motion o

Abstract: The present disclosure relates to a dust container arrangement (15, 120, 210) adapted to be fluidly coupled to a fan arrangement (13) comprised in a power tool (1) via an at least partly flexible dust conduit (14). The dust container arrangement (15, 120, 210) comprises a frame (100, 126) which in turn comprises a holder part (102, 123) with a container inlet (101, 125). The dust container arrangement (15, 120, 210) further comprises a first container (107, 121) and a second container (108), which containers (107, 108; 121) are releasably attached to the holder part (102, 123) in a sealed manner. The first container (107, 121) is air-permeable such that air (A1) that is blown into the container inlet (101, 125) is permitted to escape through a wall (115 132) of the first container (107, 121), while the second container (108) is air-tight during operation and adapted to receive dust (113A, 113B, 113C) that is brought into the container inlet (101, 125).

Abstract: A vibration suppressing handle arm (600) for an early entry concrete saw, the handle comprising a joint separating the handle into a first elongated part (120) and a second elongated part (140), wherein the first and second elongated parts are arranged pivotable with respect to each other about the joint, wherein the first part (120) has an elongation direction configured to align with an elongation direction of the second part (140) to form an elongation direction of the handle when the handle is in an unfolded position, the handle further comprising a resilient element arranged to resist but not prevent pivoting by the first elongated part (120) and the second elongated part (140) about the joint.

Abstract: The present disclosure relates to a screw-retaining device (1) comprising a connecting element (2) which in turn comprises a first end part (3), a second end part (4) and an intermediate part (5) that connects the end parts (3, 4). The first end part (3) comprises an at least mainly circumferentially running part (6) that at least partly encompasses a retaining aperture (7) that is arranged to engage the threads (9) of a screw (100), and the second end part (4) is attached to an object (8). The screw-retaining device (1) further comprises a washer part (20) with a first and second washer portion (21, 22), having a corresponding first and second washer aperture (23, 24). The washer portions (20, 22) are connected and spaced apart by a gap (26), and the washer apertures (23, 24) admit passage of a screw stem (19).

Abstract: The present disclosure relates to a screw-retaining device (1) comprising a connecting element (2) which in turn comprises a first end part (3), a second end part (4) and an intermediate part (5) that connects the end parts (3, 4). The first end part (3) comprises an at least mainly circumferentially running part (6) that at least partly encompasses a retaining aperture (7) that is arranged to engage the threads (9) of a screw (100), and the second end part (4) is attached to an object (8). The screw-retaining device (1) further comprises a washer part (20) with a first and second washer portion (21, 22), having a corresponding first and second washer aperture (23, 24). The washer portions (20, 22) are connected and spaced apart by a gap (26), and the washer apertures (23, 24) admit passage of a screw stem (19).

Abstract: High power flat saw (10) having a large diameter saw blade (12), said flat saw (10) comprising a motor (11) and a blade shaft drive (1), wherein said blade shaft drive (1) comprises a first pulley (2) and a second pulley (3) and a belt (6), said second pulley (3) being directly connected to a blade shaft (9), said first pulley (2) having a smaller diameter than the diameter of said second pulley (3), and wherein said blade shaft drive (1) further comprises a variable belt tensioner (4) arranged to apply a variable force to the belt (6).

Abstract: The invention discloses a PCB (100, 400) with first and second main surfaces (110, 130), the PCB also having a first height, h, said two surfaces and height together defining the volume of the PCB. The PCB comprises layers (430, 434, 438) of a first supporting laminate material, layers (440, 431, 433, 435, 437, 439) of a first conducting material and layers (432, 436) of a first prepreg, said first materials and prepreg having respective dielectrical constants and dissipation factors. In the PCB, a sub-volume of the PCB defined by a sub-area (120) within the first main surface and a sub-height (h?) within said first height together comprise a sub-PCB (320) which comprises at least one layer (330, 334) of a second supporting laminate material, said second laminate material differing from the first laminate material with regard to at least one of the factors dielectrical constant and dissipation factor.

Abstract: A multi-layer printed board assembly (PBA) with improved heat dissipation characteristics. An electronic component is surface mounted on a main surface at least partially over a cooling component arranged integrally in the PBA. The cooling component transports heat from the electronic component through the PBA in a first direction (x) essentially perpendicular to the main surface of the PBA, and in a second direction (y) essentially parallel to the main surface of the PBA.

Abstract: A multi-layer printed board assembly (PBA) with improved heat dissipation characteristics. The PBA includes a cooling component, which extends essentially perpendicularly through the layers of the PBA. A first end of the cooling component contacts a cooling structure external to the PBA. An electronic component is surface mounted at least partially over a second end of the cooling component. The cooling component transports heat from the electronic component through the PBA to the external cooling structure.