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公开(公告)号：JPH11133002A
公开(公告)日：1999-05-21
申请号：JP24368298
申请日：1998-08-28
Applicant: FRESENIUS AG
Inventor： MEISBERGER ARTUR
IPC: G01N29/02 , A61M5/36 , G01N29/00 , G01N29/036 , G01N29/20
Abstract: PROBLEM TO BE SOLVED: To provide an ultrasonic wave transmitting device with a simple design which generates powerful output signals. SOLUTION: In an ultrasonic wave transmitting device 20 specially for an air-bubble detector with a transmitting stage and an ultrasonic crystal 5, the transmitting stage is provided with a multi-vibrator with a time reference circuit 1 with two stable output states and a timing elements 2 and 3 mutually connected in a feedback loop of the time reference circuit 1. The ultrasonic crystal 5 is mutually connected to the feedback loop of the time reference circuit 1, so that the multi-vibrator automatically oscillates at its natural frequency, at the time when its electric circuit oscillates at the resonance frequency or at the vicinity of the resonance frequency of an ultrasonic crystal and the other ultrasonic crystal is disconnected.
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公开(公告)号：ES2348766T3
公开(公告)日：2010-12-13
申请号：ES98116031
申请日：1998-08-25
Applicant: FRESENIUS AG
Inventor： MEISBERGER ARTUR
IPC: G01N29/02 , A61M5/36 , G01N29/00 , G01N29/036 , G01N29/12
Abstract: LA INVENCION TRATA DE UN EMISOR DE ULTRASONIDOS, EN PARTICULAR PARA UN DETECTOR DE BURBUJAS DE AIRE, CON UN NIVEL DE EMISION Y CON UN TRANSDUCTOR DE ULTRASONIDOS. PARA CREAR UN EMISOR DE ULTRASONIDOS, QUE SEA SENCILLO Y AL MISMO TIEMPO CON UNA FUERTE SEÑAL DE PARTIDA, SE PREVE EN EL NIVEL DE EMISION UN MULTIVIBRADOR CON UN CIRCUITO BASCULANTE QUE LLEVA DOS ESTADOS ESTABLES DE PARTIDA Y UN TEMPORIZADOR QUE ESTA UNIDO AL CIRCUITO BASCULANTE EN UNA RAMIFICACION DE RETROACCION. UN TRANSDUCTOR DE ULTRASONIDOS ESTA CONECTADO DE TAL MANERA CON LA RAMIFICACION DE RETROACCION DEL CIRCUITO BASCULANTE, QUE EL CIRCUITO ELECTRICO OSCILA SOBRE O EN LA CERCANIA DE UNA FRECUENCIA DE RESONANCIA DEL TRANSDUCTOR DE ULTRASONIDOS, MIENTRAS QUE CUANDO EL TRANSDUCTOR DE ULTRASONIDOS ESTA CERRADO EL MULTIVIBRADOR OSCILA POR SI MISMO EN SU PROPIA FRECUENCIA.
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公开(公告)号：DE19944617A1
公开(公告)日：2001-08-09
申请号：DE19944617
申请日：1999-09-17
Applicant: FRESENIUS AG
Inventor： MEISBERGER ARTUR
IPC: B04B9/02 , B04B5/00 , B04B11/02 , B08B9/08 , H02K7/14 , H02K49/10 , H02K51/00 , B04B5/04 , A61M1/36
Abstract: The drive has first (2) and second (11) magnetically co-operating, relatively rotating supports, each supporting a number of magnet poles (16,17). The north and south poles are alternately arranged in a circle and are spaced from each other. A third support (6) supports at least two pairs of flow guiding connection parts (18-21). The connection parts are arranged, so that in a rotation position of the support a first section of the first pair faces a gap between two adjacent magnet poles of the first support and a second section of the first pair faces a gap between two adjacent magnetic poles of the second support, while a first section of the second pair faces a pair of magnetic poles of the first support and a second section of the second pair faces a pair of magnetic poles of the second support. An Independent claim is included for a centrifuge to separate liquids.
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公开(公告)号：DE59606834D1
公开(公告)日：2001-06-07
申请号：DE59606834
申请日：1996-01-30
Applicant: FRESENIUS AG
Inventor： BIESEL DR , KREBER STEFAN , BRASS HENNING , WITTHAUS FRIEDRICH , MEISBERGER ARTUR
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公开(公告)号：GB2144805A
公开(公告)日：1985-03-13
申请号：GB8418843
申请日：1984-07-24
Applicant: FRESENIUS AG
Inventor： WEBER WOLFRAM , MATHIEU DR BERND , NEUMANN DR HANS-JURGEN , MEISBERGER ARTUR
Abstract: A pump for e.g. use in medical technology, has a rotor 1 with rollers 15, 16 to compress a pumping tube, or "hose" (32), Fig. 2, the rollers being movable radially and interconnected by e.g. pivoted rods 17, 18, such that inward displacement of one roller causes corresponding outward displacement of the other roller. Springs 10, 12 may be employed to bias the rollers outwardly. A bed (25) for the tube may have an outwardly-projecting non-circular configuration adjacent the tube ends. Pressure pulsations are thereby reduced. Two other embodiments of the rotor are described, Figs. 7 and 8.
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Patent Agency Ranking
公开(公告)号：DE19738146B4
公开(公告)日：2005-05-12
申请号：DE19738146
申请日：1997-09-01
Applicant: FRESENIUS AG
Inventor： MEISBERGER ARTUR
IPC: G01N29/02 , A61M5/36 , G01N29/00 , G01N29/036 , B06B1/06
Abstract: The transmitter has a transmission stage (20) and an ultrasonic oscillator (5). The transmission stage has a multivibrator consisting of a flip-flop with two stable output states and a timer element in its feedback path. The ultrasonic oscillator is connected to the feedback path so that the transmission stage oscillates at or near the resonant frequency of the oscillator, whilst the multivibrator oscillates at its own natural frequency if the ultrasonic oscillator is clamped. An Independent claim is also given for an air bubble detector containing the ultrasonic transmitter.
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公开(公告)号：ES2177143T3
公开(公告)日：2002-12-01
申请号：ES99101002
申请日：1999-01-18
Applicant: FRESENIUS AG
Inventor： MEISBERGER ARTUR , WEBER WOLFRAM , LAY CARLO , WITTHAUS FRIEDRICH , KREBER STEFAN , BRASS HENNING
Abstract: One and/or the other transmission has couplings (17-20) to transmit the torque through magnetic forces. The centrifuge has a working transmission to transfer the torque to a separation unit (3) and a second working transmission to transfer the torque to the rotating frame (1). The couplings have magnets (15,16) located on a circular line. The poles of adjacent magnets of a coupling are arranged in opposition. The coupling (17-20) is a body with the shape of a circular disk. Or one and/or the other transmission has two rotating couplings on a common axis, with a magnetic lock through magnets arranged on a circular line at the upper and lower sides of the coupling. Or the couplings rotate on parallel axes, with a magnetic lock action. The couplings (17,19) can rotate on axes at right angles to each other, with the magnets (15,23) on a circular line at their peripheral surfaces, or the magnets are at the peripheral surface of one coupling and on the upper or lower side of the other coupling on a circular line. The magnets have a circular cross section, or a rectangular cross section where their longitudinal sides are aligned on a radial direction. The gaps between the magnets are equal in both matching couplings. The separation unit (3) is bonded to one coupling (19), which has a magnetic lock with another coupling (17) which has an axis across the axis of the rotating frame. The second coupling has a magnetic lock with a third coupling (20) at the frame (21), concentric to the first coupling. A fourth coupling (14), opposite the second coupling, rotates on an axis at right angles to the rotating frame (1) axis, with a magnetic lock at the first (19) and third (20) couplings. The rotating frame is rotated by a hollow shaft, with a coaxial drive shaft linked to the first coupling. A second coupling is bonded to the separation unit, with a magnetic lock at the first coupling. Or a second coupling is in the rotating frame on an axis parallel to the frame rotary axis, with a magnetic lock at the first coupling for the separation unit, and with a larger diameter than the first coupling. The rotating frame forms the third coupling, for a magnetic grip with the second coupling. The second coupling in the rotating frame can rotate round the rotating frame axis, with a magnet grip at the first coupling, and a third coupling rotates on an axis parallel to the rotating frame axis with a gearing link to the second coupling, while the rotating frame forms a fourth coupling with a magnetic lock at the third coupling. The separation unit (3) is within the rotating frame (1). In an alternative form, the first and/or second transmission has at least one stator with a first and/or second coil. The system has a magnetic coupling so that the torque forces are transmitted by a magnetic grip. The rotating frame has an upper and lower carrier plate, with the separation unit at the upper plate and the stator between the plates and linked to one and/or the other coil. Permanent magnets give the coupling grip action. The first coil generates a rotating field to transmit the torque to the separation unit. The permanent magnets are equidistant round the periphery at the under side of the separation unit, with the poles in opposition at adjacent magnets. The second coil generates a rotating field for the magnetic coupling of the rotating frame, with permanent magnets equidistant at the lower plate of the frame, with opposing polarity at neighboring magnets. The lower carrier plate of the rotating frame is at a support body extending in the rotating frame, as a mounting for the stator.
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公开(公告)号：DE59901370D1
公开(公告)日：2002-06-13
申请号：DE59901370
申请日：1999-01-18
Applicant: FRESENIUS AG
Inventor： MEISBERGER ARTUR , WEBER WOLFRAM , LAY CARLO , WITTHAUS FRIEDRICH , KREBER STEFAN , BRASS HENNING
Abstract: One and/or the other transmission has couplings (17-20) to transmit the torque through magnetic forces. The centrifuge has a working transmission to transfer the torque to a separation unit (3) and a second working transmission to transfer the torque to the rotating frame (1). The couplings have magnets (15,16) located on a circular line. The poles of adjacent magnets of a coupling are arranged in opposition. The coupling (17-20) is a body with the shape of a circular disk. Or one and/or the other transmission has two rotating couplings on a common axis, with a magnetic lock through magnets arranged on a circular line at the upper and lower sides of the coupling. Or the couplings rotate on parallel axes, with a magnetic lock action. The couplings (17,19) can rotate on axes at right angles to each other, with the magnets (15,23) on a circular line at their peripheral surfaces, or the magnets are at the peripheral surface of one coupling and on the upper or lower side of the other coupling on a circular line. The magnets have a circular cross section, or a rectangular cross section where their longitudinal sides are aligned on a radial direction. The gaps between the magnets are equal in both matching couplings. The separation unit (3) is bonded to one coupling (19), which has a magnetic lock with another coupling (17) which has an axis across the axis of the rotating frame. The second coupling has a magnetic lock with a third coupling (20) at the frame (21), concentric to the first coupling. A fourth coupling (14), opposite the second coupling, rotates on an axis at right angles to the rotating frame (1) axis, with a magnetic lock at the first (19) and third (20) couplings. The rotating frame is rotated by a hollow shaft, with a coaxial drive shaft linked to the first coupling. A second coupling is bonded to the separation unit, with a magnetic lock at the first coupling. Or a second coupling is in the rotating frame on an axis parallel to the frame rotary axis, with a magnetic lock at the first coupling for the separation unit, and with a larger diameter than the first coupling. The rotating frame forms the third coupling, for a magnetic grip with the second coupling. The second coupling in the rotating frame can rotate round the rotating frame axis, with a magnet grip at the first coupling, and a third coupling rotates on an axis parallel to the rotating frame axis with a gearing link to the second coupling, while the rotating frame forms a fourth coupling with a magnetic lock at the third coupling. The separation unit (3) is within the rotating frame (1). In an alternative form, the first and/or second transmission has at least one stator with a first and/or second coil. The system has a magnetic coupling so that the torque forces are transmitted by a magnetic grip. The rotating frame has an upper and lower carrier plate, with the separation unit at the upper plate and the stator between the plates and linked to one and/or the other coil. Permanent magnets give the coupling grip action. The first coil generates a rotating field to transmit the torque to the separation unit. The permanent magnets are equidistant round the periphery at the under side of the separation unit, with the poles in opposition at adjacent magnets. The second coil generates a rotating field for the magnetic coupling of the rotating frame, with permanent magnets equidistant at the lower plate of the frame, with opposing polarity at neighboring magnets. The lower carrier plate of the rotating frame is at a support body extending in the rotating frame, as a mounting for the stator.
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公开(公告)号：ES2156227T3
公开(公告)日：2001-06-16
申请号：ES96101250
申请日：1996-01-30
Applicant: FRESENIUS AG
Inventor： BIESEL WOLFGANG DR , KREBER STEFAN , BRASS HENNING , WITTHAUS FRIEDRICH , MEISBERGER ARTUR
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公开(公告)号：AT200869T
公开(公告)日：2001-05-15
申请号：AT96101250
申请日：1996-01-30
Applicant: FRESENIUS AG
Inventor： BIESEL WOLFGANG DR , KREBER STEFAN , BRASS HENNING , WITTHAUS FRIEDRICH , MEISBERGER ARTUR
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