Abstract: A lice treatment system for marine organisms, such as fish, is described where the system is a closed system comprising: an inlet (1) for fish that shall be treated, a first separator (2) to separate the fish and water and which is arranged after the inlet (1), a pipeline (6) for the transport of the fish, in which, at least, one part of the pipeline (6) constitutes a liquid bath (5) for the fish and which is arranged to receive the treatment liquid, a second separator (7) to separate the fish and the treatment liquid, an outlet (8) for the discharge of the treated fish and which is arranged after the second separator (7), and a circulation pump (10) for the circulation of the treatment liquid in the closed system. The part of the pipeline that constitutes the liquid bath (5) is formed in a U-shape so that a liquid bath with respective liquid surfaces (4) is formed.

Abstract: The screening device comprises a tubular element with an axis of rotation and rotatable in relation to a shaft device. It further comprises a screening body with one end secured to said tubular element and a free opposite end, which on rotation of said tubular element is adapted to move between a first position, in which the screening body is completely rolled up on said tubular element, and a second position, in which the screening body extends over said aperture in order to screen it. A drive unit for driving said tubular element comprises a motor connected to said tubular element and said shaft device such as to provide said rotation of said tubular element in relation to said shaft device. A control unit controls operation of said motor and comprises a printed circuit board with an electronic motion sensor. Said printed circuit board is located in a fixed position in relation to said axis of rotation of said tubular element and/or in relation to said shaft device.

Abstract: A lice treatment system for marine organisms, such as fish, is described where the system is a closed system comprising: an inlet (1) for fish that shall be treated, a first separator (2) to separate the fish and water and which is arranged after the inlet (1), a pipeline (6) for the transport of the fish, in which, at least, one part of the pipeline (6) constitutes a liquid bath (5) for the fish which is arranged to receive the treatment liquid, a second separator (7) to separate the fish and the treatment liquid, an outlet (8) for the discharge of the treated fish and which is arranged after the second separator (7), and a circulation pump (10) for the circulation of the treatment liquid in the closed system. The part of the pipeline that constitutes the liquid bath (5) is formed in a U-shape so that a liquid bath with respective liquid surfaces (4) is formed.

Abstract: The screening device comprises a tubular element with an axis of rotation and rotatable in relation to a shaft device. It further comprises a screening body with one end secured to said tubular element and a free opposite end, which on rotation of said tubular element is adapted to move between a first position, in which the screening body is completely rolled up on said tubular element, and a second position, in which the screening body extends over said aperture in order to screen it. A drive unit for driving said tubular element comprises a motor connected to said tubular element and said shaft device such as to provide said rotation of said tubular element in relation to said shaft device. A control unit controls operation of said motor and comprises a printed circuit board with an electronic motion sensor. Said printed circuit board is located in a fixed position in relation to said axis of rotation of said tubular element and/or in relation to said shaft device.

Abstract: The screening arrangement is meant for screening of a window which is built into a roof surface and comprises a flexible screening body with a bottom bar in connection with the free end of the bar. A top casing for the screening arrangement is placed at the top frame or sash member of the window and comprises a reception means, such as a roller. The screening arrangement comprises at least on rotatable connection which permits a displacement of the screening body to a position in which it forms an angle with the roof surface and is positioned within the end wall of the top casing. The reception means is situated essentially in the plane of the screening, the top casing having such a form that it follows the form of the window at the top frame or sash member.

Abstract: An external screening mechanism for a pivotable skylight window comprises a web of a screening material which is wound on a spring-biased roller and is connected with a bottom bar which is guided in side guide rails and connected via a cord drive with an unrolling drive unit. The side guide rails for the bottom bar run along the parts of the frame side portions situated above the axis of rotation and the parts of the sash side portions situated below the axis of rotation, and an essentially rod-shaped support arrangement is attached to and extends across the screening web and is led in the side guide rails so that, in a position of use for the screening mechanism, it is positioned at or close to the axis of rotation in parallel therewith. The device may be provided with an arrangement for retightening and smoothing the web in the fully drawn position and during rewinding.