Abstract: The invention relates to a method for power control of an electric motor, in particular a motor for driving the suction fan of a vacuum cleaner connected to an AC mains power supply. The power control is effected by varying the phase angle of the electric alternating quantity supplied to the motor by the use of semiconductor switches. AC power supplied to the motor is switched by using different delay times for the switching in each half-period of a full AC period to suppress odd harmonics, particularly the third harmonic of the mains power line frequency. Half-periods of a full period are mirrored in the next consecutive full period in order to suppress even harmonics, particularly the second harmonic of the mains power line frequency. A set of delay times t1 and t2 are defined and selected to be used in further avoiding critical delay time areas for harmonics and minimize the generation of vibrations.

Abstract: Transgenic pigs that express one or more non-porcine cytosine deaminases are described as well as methods of making and using such pigs.

Abstract: A clothes treating apparatus comprising a cabinet (1) having external walls (2) and internal walls (3), said internal walls (3) defining an interior region (4) for receiving clothes, said apparatus further comprising a door (6) connected to said cabinet (1), at least a supporting device (5) for supporting clothes within said interior region, a ventilator (7), water supply means (8) and an ultrasonic nebulizer (9) operatively associated to said water supply means (8). Said apparatus is characterized in that the air within the interior region (4) is recirculated by said ventilator (7) through an air duct (10) located between said internal walls (3) and said external walls (2) forming a closed loop with said internal region.

Abstract: The invention generally relates to a connector (1) for receiving a cable end (12), arranged for being attached to a circuit board. The connector is provided with a through hole (10) for receiving the cable end, at least one upper lip (5) and at least one lower lip (3) with a connector recess (11, 13) therebetween for fitting onto an edge of a slit (6) in the circuit board. The connector is further provided with at least one snap holding element (4), disposed adjacent to said connector recess (11, 13), so as to engage with a portion (7) of the circuit board, adja-cent to the edge of the slit 6 in the circuit board.

Abstract: A device for adjusting the beam direction of a beam radiated from a stationary array of antenna elements. The device includes a feed line structure configured as a star with at least four line segments extending from a central source connection terminal at the centre of the star, to the respective feed connection terminals. The dielectric body with two different body portions, having different effective dielectric values, is displaceable between two end positions in a central, region of the device.

Abstract: At a refrigerator or freezer cabinet (10) with a space for storing goods, an evaporator (38) extends along the rear wall (18) of the cabinet and confines in sidewards direction a chamber (52), which is also confined by the rear wall (18) and an intermediate wall (44) arranged in front of the rear wall. An opening (54) is arranged in the intermediate wall (44), through which opening an impeller (56) sucks in air from the space and blows the air out into the chamber (52), the cross sectional area of which decreasing in vertical direction so that the air is evenly distributed along the evaporator (38) before the air in sidewards direction passes through the evaporator out into the space along the rear wall, from where the air circulates further on through the space between shelves located therein back to the opening (54).

Abstract: The invention generally relates to a connector (1) for receiving a cable end (12), arranged for being attached to a circuit board. The connector is provided with a through hole (10) for receiving the cable end, at least one upper lip (5) and at least one lower lip (3) with a connector recess (11, 13) therebetween for fitting onto an edge of a slit (6) in the circuit board. The connector is further provided with at least one snap holding element (4), disposed adjacent to said connector recess (11, 13), so as to engage with a portion (7) of the circuit board, adja-cent to the edge of the slit 6 in the circuit board.

Abstract: At a refrigerator or freezer cabinet (10) with a space for storing goods, an evaporator (38) extends along the rear wall (18) of the cabinet and confines in sidewards direction a chamber (52), which is also confined by the rear wall (18) and an intermediate wall (44) arranged in front of the rear wall. An opening (54) is arranged in the intermediate wall (44), through which opening an impeller (56) sucks in air from the space and blows the air out into the chamber (52), the cross sectional area of which decreasing in vertical direction so that the air is evenly distributed along the evaporator (38) before the air in sidewards direction passes through the evaporator out into the space along the rear wall, from where the air circulates further on through the space between shelves located therein back to the opening (54).

Abstract: A device for adjusting the beam direction of a beam radiated from a stationary array of antenna elements. The device comprises a feed line structure configured as a star with at least four line segments extending from a central source connection terminal at the centre of the star, to the respective feed connection terminals (100). The dielectric body with two different body portions, having different effective dielectric values, is displaceable between two end positions in a central, region of the device.

Abstract: In an arrangement for a seat (2) in a vehicle, the seat is movable in a longitudinal direction along a plane (33) which slopes relative to the horizontal plane. The subframe of the seat (2) consists of devices (30, 31) fastened respectively to the vehicle and to the seat, which devices consist of two substantially similar triangular supporting frames. Resetting between a predetermined driving position and a likewise predetermined resting position is made possible by a control device (16) which is fastened to the device (30) which is itself fastened to the vehicle, which control device cooperates with a locking device fastened to the seat so that during a relocating movement between forward and rear positions of the seat the locking device (17) becomes free from at least one locking position between the vehicle seat and the device (30) fastened to the vehicle.

Abstract: A dual band antenna with dual antenna elements, each including a first and a second antenna element (5b, 6b), for transmitting and/or receiving radio frequency radiation in a first, relatively low frequency band and a second, relatively high frequency band, respectively, and an electrically conductive, substantially planar reflector device (1). Each first antenna element (5b) is located close to an associated one (6b) of the second antenna elements on a front side of the reflector device so as to define first and second radiation beams. The reflector device, on each lateral side thereof, is provided with an edge portion formed as a groove (11, 12), which is open towards the front side of the reflector device and which is dimensioned so as to widen the azimuth beam width of the second beam to an angular value being close to that of the first beam, whereby both beams will have substantially the same azimuth width.

Abstract: An antenna arrangement for receiving and/or transmitting electromagnetic signals in two spaced-apart frequency bands including a first frequency band having a first center frequency (f1) and a second frequency band having a second center frequency (f2). A first set of antenna elements (A1) are operative in the first frequency band (f1), and a second set of antenna elements (A2) are operative in the second frequency band (f2). A feeding network (C, 10, C1, C2) is arranged for feeding signals to the respective sets of antenna elements. The first set of antenna elements (A1) are arranged geometrically so that the first set has a first length (D1) in a first direction. The second set of antenna elements (A2) are arranged geometrically so that the second set has a second length (D2) in said first direction. In order to obtain lobes with the same beam width, said first and second lengths (D1, D2) are substantially inversely proportional to the first and second center frequencies (f1, f2).

Abstract: A method of producing an antenna element assembly is disclosed. The antenna element assembly (4) includes a rigid dielectric support member (1) carrying at least one radiating patch (2), the antenna element assembly being intended to be mounted onto an antenna device for transmitting and/or receiving microwave radiation. According to the invention, parasitic elements (3a, 3b) as well as the radiating patches (2) are formed onto the rigid support member by applying a conductive liquid in a screen printing process.

Abstract: An antenna device for receiving and/or transmitting dual polarized electromagnetic waves, comprising at least one antenna element (7). There are disposed parasitic elements (8, 9) of an electrically conductive material in a region, which surrounds the antenna element and includes the space between and including two parallel planes (2, 1) being defined by a ground plane layer (2) and the antenna element (7), respectively. Each parasitic element (8, 9) comprises at least one elongated, longitudinal portion, extending along an associated lateral side of the antenna element.

Abstract: An antenna for receiving and/or transmitting electromagnetic waves, comprising an array of antenna elements including at least one longitudinal row of antenna elements (7) located at a distance (d) from each other, each such row of antenna elements being adapted to receive and/or transmit a dual polarized beam including two separate, mutually isolated channels. Along each longitudinal row of antenna elements, in the vicinity of the gap between a respective pair of adjacent antenna elements, preferably at the side of the centre line (C) of the row, there are disposed parasitic elements (8a, 8b) serving to influence the mutual coupling between said adjacent antenna elements in such a way as to improve the isolation between the separate channels.

Abstract: An elongated antenna, especially an omnidirectional antenna, has a vertical, elongated rod-like structure with two metal profile elements (10, 20) provided with dipole elements (2) as integral parts thereof. The rod-like structure (1) is surrounded by a tube (3). The antenna elements (2) are coupled in parallel to a single transmission coaxial cable (8). The antenna has a high gain and low losses.

Abstract: Antenna devices, including a pair and larger arrays of radiators, wherein each pair is to be connected to a first transmission line having a first characteristic impedance Z1. Each pair includes at least first and second radiating elements (1, 2) and first and second impedance transformers (3, 4) for the first and second radiating elements. One side of each transformer is connected to the respective element. The other sides are inter-connected by a second transmission line (8) to which their impedances are matched. The second transmission line has a resistive first impedance R1 equal to twice the first characteristic impedance Z1. The first transmission line is to be connected to the second transmission line at a selected one of many possible contact points (9). The selected contact point then determines a signal phase difference between said first and second radiating elements.