Abstract: This invention relates to a sea water cell which uses wave action to increase the flow of the water through the cathode. The cell has an anode and a cathode arranged in an open cell structure to allow the electrolyte, i.e. the sea water, to flow through the structure. The cell structure is provided with water flow deflector means causing water flow through the cell to be deflected from the vertical direction, when the cell is suspended from or attached to a buoyancy device. The water flow deflector is preferably arranged in the upper end of the cell.

Abstract: In a method and a device for tracking an object (2a), especially a subsea object, while utilizing a mother vessel (1) or an intermediate craft (101) equipped with sonars (3a) for the transmission and reflection of searching rays (3b, 3n) which on a display on the vessel (1) indicate one or more objects (2a) in the subsea search area, there is provided a searching unit (2) which is controlled from the vessel (1), and which comprises at least one transponder/responder (10, 13) or the like, for the transmission of signals corresponding to the searching rays (3b). The signal(s) is registered on the display on the mother vessel (1) and is used for guiding the searching unit (2) towards a selected object (2a) along the searching rays (3b, 3n) of the sonars.

Abstract: This invention relates to a portable heating and humidifying device which is effective in giving emergency therapy for accidental hypothermia. The device includes a charcoal fuel element heater (2;31) which is integrated-with a moisturized element (1;32), so that heated air from the heater (2;31) is humidified by being passed through the moisturized element (1;32). The moisturized element contains a body (11;38) of water absorbent material, such as fibre wadding or foamed polymer. The body (11;38) of water absorbent material is contained within a heat conducting first housing (10;41), so as to leave a first airspace (13;41) between substantial parts of the outer surface of the body (11;38) and the inner surface of the first housing (10;41). The first housing (10;42) is arranged within a heat insulating second housing (15;50) defining a second airspace (16;45) through which dry warm air is transported to the face of person breathing the humidified air.

Abstract: This invention relates to sea water cells or salt water galvanic cells or batteries which use oxygen dissolved in the sea water as the oxidant, and in particular to cathodes which are suitable for cells which are exposed to high hydrodynamic forces (from waves or strong currents). The cathode (3, 12) may consist of a helix, or spirally wound perforated or expanded metal plate or sheet. The cathode (20) may alternatively consist of a number of concentrical spaced apart layers of cylinders of a perforated or expanded metal sheet. The number of layers of the cathode is 2-50. preferably 3-20. The layers of the cathode are spaced apart with radially arranged bars, spacers, notches (4, 15, 16) or the like.

Abstract: The invention relates to a method for incoherent demodulation of orthogonally coded DSSS signals modulated with MSK or similar modulation types. The data signals are retrieved by splitting the received signal into two parts where the carrier is down converted to baseband by a signal (S12, S22) which is not adapted to the phase of the carrier, whereafter the down converted signals pass a correlator (13, 14), quadrature devices (15, 16) and adding devices (17, 18) and finally a discriminator (19) whic always chooses the highest correlation peak as output signals (S30).

Abstract: A method of making priming devices for a fuel element is disclosed. A high quality priming device is obtained by treating suitable pieces of cellulose with catalyzing agents such as manganates or permanganates and with oxidizing agents such as inorganic oxidizing salts. Such priming devices are very reliable and may be used in portable personnel heaters, e.g. to keep injured people warm after accidents.