Abstract: The invention relates to a submerged observation unit (6) for a fish tank, wherein the observation unit (6) is suspended in a node cable (5) from a hoist winch (3) of a surface buoy (2). The node cable (5) is torsion-resistant, wherein the node cable (5) is at its upper end wound on the hoist winch (3) having a horizontal drum axis. The observation unit (6) is arranged to be motorized and to azimuthally rotate about a vertical axis. The surface buoy (2) is arranged to be motorized and to move along a main span (10) of a surface cable (1), wherein the main span (10) is arranged to be spanned across a float ring (9) of the fish tank.

Abstract: Device for destroying parasites on fish, such as salmon lice on salmon in fish farms, comprising a camera (4) communicating with a controlling unit (51) which in turn communicates with a light source (5) adapted to fire pulses of point shaped light which is harmful for the parasite in question. The controlling unit (51) controls a system for optical recognition within a defined coordinate system and is arranged to detect points and to update in real time coordinates that exhibits contrast differences typical for parasites on a fish surface and to trigger a light pulse from the light source (5) when the coordinates for at detected point coincides with the coordinates for the aiming point of the light source.

Abstract: Device for destroying parasites on fish, such as salmon lice on salmon in fish farms, comprising a camera (4) communicating with a controlling unit (51) which in turn communicates with a light source (5) adapted to fire pulses of point shaped light which is harmful for the parasite in question. The controlling unit (51) controls a system for optical recognition within a defined coordinate system and is arranged to detect points and to update in real time coordinates that exhibits contrast differences typical for parasites on a fish surface and to trigger a light pulse from the light source (5) when the coordinates for at detected point coincides with the coordinates for the aiming point of the light source.

Abstract: The present invention relates to a centrifuge apparatus (10) comprising: a support member (12) rotatable about a first axis (20); at least one holding means (22) mounted to said support member for rotation therewith about the first axis, wherein each holding means is adapted to rotate about a respective second axis (24) distal to said first axis and to receive a sample processing device (26) for rotation thereof also about the second axis; a first motor (28a) adapted to rotate said support member about said first axis; and a second motor (28b) coupled to said at least one holding means; wherein the two motors (28a, 28b) are placed off the support member on opposite sides of the support member. The invention also relates to use of such an apparatus, and to a centrifugation method.

Abstract: An internal conduit vehicle, also called a pipeline vehicle. The vehicle includes first and second wheel assemblies that are rotated in opposite directions to move the vehicle along the pipeline, or that are mutually independent to perform a more complex movement. Each wheel assembly includes a number of wheels at the free end of wheel arms, each wheel having a spin axis that is angled in respect of an axis of the chassis. Each wheel is shaped as a rotation symmetric body with a large end and a small end, and is unilaterally mounted to a wheel arm by the large end.