Abstract: A bracket for attaching an arch wire to a tooth includes a dental plate with a back and a front, wherein the back is intended to be attached to a tooth by an adhesive connection, and also an arch wire holder for fastening the arch wire to the bracket, wherein the arch wire holder is fitted at the front of the dental plate. The bracket farther includes an arm, a first end of which is attached, or can be attached, to the dental plate and a second end carries the arch wire holder. The arm extends along the front of the dental plate. The arm is made of bendable wire material, such that the position of the arch wire holder in respect of the dental plate can be adjusted by bending the arm. The invention further relates to the use of a bracket according to the invention.

Abstract: A bracket for attaching an arch wire to a tooth includes a dental plate with a back and a front, wherein the back is intended to be attached to a tooth by an adhesive connection, and also an arch wire holder for fastening the arch wire to the bracket, wherein the arch wire holder is fitted at the front of the dental plate. The bracket farther includes an arm, a first end of which is attached, or can be attached, to the dental plate and a second end carries the arch wire holder. The arm extends along the front of the dental plate. The arm is made of bendable wire material, such that the position of the arch wire holder in respect of the dental plate can be adjusted by bending the arm. The invention further relates to the use of a bracket according to the invention.

Abstract: The present invention provides a method and circuit for accurately controlling heating of an electrode of a discharge lamp. According to the present invention a feedback voltage is generated. The feedback voltage is representative of an electrode voltage, in particular an electrode voltage when the discharge lamp is in a non-burning state, the electrode voltage then representing a heating voltage. The feedback voltage is compared to a predetermined reference voltage, which represents a desired heating voltage. The comparator generates and outputs an error signal representing a difference between the actual feedback voltage and the reference voltage. The error signal is supplied to a power supply circuit. The power supply circuit generates the alternating supply current corresponding to the error signal such that the electrode voltage is adjusted towards the desired heating voltage.

Abstract: A device (1) for determining the position of an internal combustion engine, includes an incremental-type sensor (2) having a rotary part (8) which is connected to the rotary body, and a fixed part (6) which is provided with first elements for detecting the rotation of an increment between the mobile part (8) and the fixed part (6), second elements for detecting the direction of rotation between the mobile part (8) and the fixed part (6), and analysis elements which are connected to the first elements and the second elements and are used to determine the angular position of the rotary body in relation to the reference position. The device also includes engine controlling elements (4) which are connected to the analysis elements (12) of the sensor (2), and the sensor (2) is permanently electrically (34) fed in the device.

Abstract: A device (1) for determining the position of an internal combustion engine, includes an incremental-type sensor (2) having a rotary part (8) which is connected to the rotary body, and a fixed part (6) which is provided with first elements for detecting the rotation of an increment between the mobile part (8) and the fixed part (6), second elements for detecting the direction of rotation between the mobile part (8) and the fixed part (6), and analysis elements which are connected to the first elements and the second elements and are used to determine the angular position of the rotary body in relation to the reference position. The device also includes engine controlling elements (4) which are connected to the analysis elements (12) of the sensor (2), and the sensor (2) is permanently electrically (34) fed in the device.

Abstract: In an up-converter supplied by the mains supply and operating in the critical mode, the on-time of the switching element (2) is modulated so that it is increased in the vicinity of the zero crossings of the mains supply voltage. As a result the THD is lowered.

Abstract: A wireless communication device includes a coupling apparatus, an antenna, an elongated printed circuit board, a battery, a speaker, and a microphone. The coupling apparatus is configured to acoustically couple the wireless communication device to a user's ear. The antenna is configured to transmit and receive communication signals. The elongated printed circuit board includes radio circuits and a ground plane for the antenna. The battery is configured to power the radio circuits. The speaker and the microphone are connected to the printed circuit board. The antenna includes a monopole antenna printed as a meandering trace on the printed circuit board. The ground plane forms a first part of the printed circuit board and the meandered trace forms a second part of the printed circuit board. The battery is mounted on the printed circuit board.

Abstract: In an up-converter a switching element is controlled both by an integrated control circuit and by a secondary winding on an inductor. High power factor and low total harmonic distortion are achieved while the design of the integrated control circuit is comparatively simple.

Abstract: An antenna device for a portable device has an antenna loop of conducting material to be connected to radio circuitry in the portable device. The antenna loop is positioned opposite a ground plane of a PCB. Also, the antenna device also comprises at least one battery, which is positioned in the extension of a first side of the PCB, and acts as an extension of the ground plane of the PCB.

Abstract: An antenna device for a portable device has an antenna loop of conducting material to be connected to radio circuitry in the portable device. The antenna loop is positioned opposite a ground plane of a PCB. Also, the antenna device also comprises at least one battery, which is positioned in the extension of a first side of the PCB, and acts as an extension of the ground plane of the PCB.

Abstract: The invention relates to a suture expansion device. The suture expansion device comprises a central stretching screw support; on either side of the stretching screw support, a right and a left fixing means support for fixing to the right and, respectively, the left section of the jaw; and two stretching screws which are parallel to one another extending between the fixing means supports and accommodated in screw passages made in the stretching screw support and threaded to match the relevant stretching screw. The stretching screws can be screwed outwards in mutually opposed directions out of the stretching screw support in order to push the right-hand and left-hand fixing means supports apart. For each fixing means support a guide system is provided that prevents rotation of the relevant fixing means support relative to the stretching screw support and guides movement of the fixing means support in the longitudinal direction of the stretching screw.

Abstract: A tensioning system for an orthodontic outer brace includes a resilient element and coupler for transmitting a tensile force exerted by the resilient element to the outer brace. The tensioning system involves an arc-shaped guide path, along which the resilient element is freely movable. The resilient element preferably has a spring constant which decreases or is zero on further extension after a specific spring force or extension is reached. The resilient element is preferably a helical spring.

Abstract: A hard palate supporting device for pushing apart or anchoring of upper teeth, such as molars and/or premolars, includes a hard palate supporting element and/or carrier therefor, a hinge by means of which the supporting element or carrier is rotatable relative to an axis of rotation extending in the transverse direction of the teeth, and a spring which on rotation of the supporting element or carrier in a direction away from the position resting against the hard palate exerts on the supporting element or carrier a force counter-acting such rotation. The supporting device can also include a stopper which limits rotation in the direction of the position resting against the hard palate, preferably to the contact position.

Abstract: The invention relates to a tensioning system for an orthodontic outer brace, comprising resilient means, and coupling means for transmitting a tensile force exerted by the resilient means to the outer brace. The resilient means comprise a resilient element. The tensioning system comprises an arc-shaped guide path, along which the resilient element is freely movable. Coupling means can be fixed on one side to the outer brace and are connected to one another on the other side via the resilient element, in such a way that the resilient element moves along the guide path when the patient turns his or her head. The guide path can comprise a tube or an arc-shaped strip of metal or can be formed in some other way. Preferably, the guide path is so flexible that the arc shape thereof can be adjusted to the curvature of the patient's neck. The resilient element preferably has a spring constant which decreases or is zero on further extension after a specific spring force or extension is reached.