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: The present disclosure relates to a hand-held power tool (1) comprising a rotatable work tool (2) with a center (16) and a circumference (17) and having a direction of rotation (19). The power tool (1) further comprises a blade guard arrangement (8) that is arranged to shield a variable part of the rotatable work tool (2) and comprises a blade guard (12) and a swiveling cover part (11, 11?, 11?) attached to the blade guard (12). In a first position, the swiveling cover part (11, 11?, 11?) is positioned such that a first arc (A) of a circle is covered, following the blade guard (12), and running an angular distance along the circumference (17) after the blade guard (12), in the direction of rotation (19). The cover part (11) is moveable between the first position and a second position where a cutting operation of the rotatable work tool (2) along the first arc (A) of a circle is allowed. The cover part (11, 11?, 11?) is biased towards the first position.

Abstract: The present disclosure relates to a hand-held power tool (1) comprising a rotatable work tool (2) with a center (16) and a circumference (17) and having a direction of rotation (19). The power tool (1) further comprises a blade guard arrangement (8) that is arranged to shield a variable part of the rotatable work tool (2) and comprises a blade guard (12) and a swiveling cover part (11, 11?, 11?) attached to the blade guard (12). In a first position, the swiveling cover part (11, 11?, 11?) is positioned such that a first arc (A) of a circle is covered, following the blade guard (12), and running an angular distance along the circumference (17) after the blade guard (12), in the direction of rotation (19). The cover part (11) is moveable between the first position and a second position where a cutting operation of the rotatable work tool (2) along the first arc (A) of a circle is allowed. The cover part (11, 11?, 11?) is biased towards the first position.

Abstract: A portable water tank assembly for a dust emitting construction machine, such as a machine for cutting concrete, stone, ceramic materials and the like may include a water container (1) and an electric pump (2) powered by a battery for pumping water from the container (1) through an outlet to the construction machine. To provide a portable water tank assembly which provides a long service life without changing battery, is easy to handle and carry and that is robust and reliable, the pump is a low pressure pump (2), of 0.1-1.5 bar, preferably of 0.3-1.2 bar, that is preferably submersible and placed inside the water container. The assembly has at least 5 liter capacity.

Abstract: A portable water tank assembly for a dust emitting construction machine, such as a machine for cutting concrete, stone, ceramic materials and the like, said assembly comprising a water container and an electric pump powered by a battery for pumping water from the container through an outlet to the construction machine. To provide a portable water tank assembly which provides a long service life without changing battery, is easy to handle and carry and that is robust and reliable, the pump is a low pressure pump, of 0,1-1,5 bar, preferably of 0,3-1,2 bar, that is preferably submersible and placed inside the water container; and said assembly has at least 5 liter capacity. Preferably the hood member has a first compartment for a battery for delivering power to the pump and a battery located in the compartment, and it may have a second compartment for a battery charger and a third compartment for a spare battery.

Abstract: A portable water tank assembly for a dust emitting construction machine, such as a machine for cutting concrete, stone, ceramic materials and the like, said assembly comprising a water container (1) and an electric pump (2) powered by a battery for pumping water from the container (1) through an outlet to the construction machine. To provide a portable water tank assembly which provides a long service life without changing battery, is easy to handle and carry and that is robust and reliable, the pump is a low pressure pump (2), of 0.1-1.5 bar, preferably of 0.3-1.2 bar, that is preferably submersible and placed inside the water container (1); and said assembly has at least 5 liter capacity. Preferably the hood member (3) has a first compartment (5) for a battery for delivering power to the pump (2) and a battery (6) located in the compartment (5), and it may have a second compartment (11) for a battery charger (12) and a third compartment (13) for a spare battery.

Abstract: This invention relates to a flexible intake system for a crankcase scavenged two-stroke internal combustion engine (10) having an additional air supply to its transfer ducts. The intake system comprises a flexible intake duct (22) connecting a fuel supply unit (21) e.g. a carburetor with an engine cylinder (11) and at least one flexible air duct (40) connecting a valve housing (42) for additional air with the engine cylinder. The end portion of the flexible intake duct (22) and at least one air duct (40) is secured to the cylinder by means of a baffle (23) made of a stiffer material than the ducts (22, 40) themselves.

Abstract: A portable water tank assembly for a dust emitting construction machine, such as a machine for cutting concrete, stone, ceramic materials and the like, said assembly comprising a water container (1) and an electric pump (2) powered by a battery for pumping water from the container (1) through an outlet to the construction machine. To provide a portable water tank assembly which provides a long service life without changing battery, is easy to handle and carry and that is robust and reliable, the pump is a low pressure pump (2), of 0.1-1.5 bar, preferably of 0.3-1.2 bar, that is preferably submersible and placed inside the water container (1); and said assembly has at least 5 liter capacity. Preferably the hood member (3) has a first compartment (5) for a battery for delivering power to the pump (2) and a battery (6) located in the compartment (5), and it may have a second compartment (11) for a battery charger (12) and a third compartment (13) for a spare battery.

Abstract: This invention relates to a flexible intake system for a crankcase scavenged two-stroke internal combustion engine (10) having an additional air supply to its transfer ducts. The intake system comprises a flexible intake duct (22) connecting a fuel supply unit (21) e.g. a carburettor with an engine cylinder (11) and at least one flexible air duct (40) connecting a valve housing (42) for additional air with the engine cylinder. The end portion of the flexible intake duct (22) and at least one air duct (40) is secured to the cylinder by means of a baffle (23) made of a stiffer material than the ducts (22, 40) themselves.

Abstract: A portable, hand-held, combustion engine powered working machine comprises a tool unit (1) including a rotatable working tool (3), and a machine unit (2) including an internal combustion engine (11), an assembly (16) for supplying air and fuel to the engine, and an air cleaning system, which comprises a filter assembly (10) including at least two filters (84, 85), referred to as pre-filter (84) and main filter (85), for cleaning the air that shall be supplied to the engine.

Abstract: A portable working machine comprising a tool unit (1) with a disc guard and a circular tool (3), and a machine unit (2) with a filter system (10), an internal combustion engine (11) with an engine cylinder (13) with bore (12) having a centre line (30), a crankshaft (14) and a crankcase (15), a fuel tank (17), a muffler (18) with an entrance port (46) provided in the rear side of the muffler and facing an exhaust port (47) of the cylinder, handles (19, 20) controls (21, 22) and supports (23, 24) on the underside of the machine unit for allowing upright positioning of the machine on a flat ground.

Abstract: A portable, hand-held, combustion engine powered working machine comprises a tool unit (1) including a rotatable working tool (3), and a machine unit (2) including an internal combustion engine (11), an assembly (16) for supplying air and fuel to the engine, and an air cleaning system, which comprises a filter assembly (10) including at least two filters (84, 85), referred to as pre-filter (84) and main filter (85), for cleaning the air that shall be supplied to the engine.

Abstract: A portable working machine comprising a tool unit (1) with a disc guard and a circular, disc-shaped tool (3), which can be rotated about an axis of rotation (4), which is horizontal in the normal upraised position of the machine, and a machine unit (2), which includes at least a filter system (10), which is at least partly accommodated in a top part of the machine unit, an internal combustion engine (11) with an engine cylinder (13) with bore (12) having a centre line (30), a crankshaft (14) and a crankcase (15), as assembly (16) comprising members for supplying air and fuel to the engine, a fuel tank (17), a muffler (18) with an entrance port (46) provided in the rear side (42) of the muffler and facing an exhaust port (47) of the cylinder (13), i.e.