Patents by Inventor Rene Friedrichs

Rene Friedrichs has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080156110
    Abstract: The disclosure relates to a method for fixing an attachment part on the measurement tube of a Coriolis mass flowmeter at at least two connection points. According to the disclosure, the measurement tube and the attachment part are soldered to one another in a single hard-soldering process at the same time at the at least two connection points.
    Type: Application
    Filed: December 7, 2007
    Publication date: July 3, 2008
    Applicant: ABB Patent GmbH
    Inventors: Lothar Deppe, Reinhard Steinberg, Frank Kassubek, Wolfgang Waldi, Jorg Gebhardt, Rene Friedrichs, Steffen Keller
  • Publication number: 20080141789
    Abstract: A method for compensation for influences, which interfere with the measurement accuracy, in measurement devices of the vibration type, comprising a measurement tube through which a fluid medium can flow and which is caused to oscillate mechanically, acting as an oscillation body, by an excitation unit, whose oscillation behavior, which changes as a function of the flowrate and/or the viscosity and/or the density of the fluid medium, is detected by at least one oscillation sensor in order to determine the flowrate, wherein the material strain in the measurement tube is detected by means of at least one sensor, from which an indicator value for the influence causing the material strain is calculated in order to correct the measurement signal, by signal processing, from the indicator value obtained in this way.
    Type: Application
    Filed: December 18, 2007
    Publication date: June 19, 2008
    Applicant: ABB Patent GmbH
    Inventors: Frank Kassubek, Lothar Deppe, Jorg Gebhardt, Rene Friedrichs, Steffen Keller
  • Publication number: 20080141787
    Abstract: A process is disclosed for operating a measurement device of the vibration type in which at least one exciter arrangement excites the system to vibration and from the vibration parameters, a measurement quantity of a measurement medium in a tube system is determined. A time-dependent force f(t)=F sin(?t)+g(t) with at least one sinusoidal component with an adjustable frequency ? can be used which acts on at least one vibration-capable part of the measurement device of the vibration type. A response signal of the vibration-capable part, (e.g., its time dependent velocity v(t)=V sin(?t+?)+h(t)) can be measured, and a phase shift ? between the response signal and the force f of a signal component which oscillates with a frequency ? is determined. The phase shift ? can be used as the input for a frequency controller so that the excitation frequency is automatically adjusted as a function of ?.
    Type: Application
    Filed: December 13, 2007
    Publication date: June 19, 2008
    Applicant: ABB PATENT GMBH
    Inventors: Rene Friedrichs, Lothar Deppe, Steffen Keller, Joerg Gebhardt, Frank Kassubek
  • Publication number: 20080127745
    Abstract: The disclosure relates to a vibration-type measuring device for measuring at least one process variable, in particular a mass flow rate, a density, a viscosity, a pressure or the like, in particular in a process line through which a medium can flow, which device comprises at least one measurement sensor which provides a measurement signal that can be influenced by the process variable, the measured value determined for the process variable by the measuring device being able to be determined from a functional relationship in conjunction with measurement parameters from the measurement signal, and the measurement parameters having a temperature-dependent cross-sensitivity with respect to the temperature distribution in the measuring device.
    Type: Application
    Filed: November 13, 2007
    Publication date: June 5, 2008
    Applicant: ABB PATENT GMBH
    Inventors: Frank KASSUBEK, Joerg Gebhardt, Rene Friedrichs, Guenter Petri, Lothar Deppe, Steffen Keller
  • Publication number: 20080124186
    Abstract: A device for fastening an attachment to a measuring tube of a Coriolis mass flowmeter, comprising a clamping part, which can be pushed onto the measuring tube and can be pressed against the measuring tube by clamping means, the clamping part being formed in the manner of a slotted conical hollow screw, which interacts with a corresponding cone nut as a clamping means in such a way that, when the cone nut is screwed onto the clamping part, the inwardly directed radial force created as a result presses the clamping part against the measuring tube.
    Type: Application
    Filed: November 15, 2007
    Publication date: May 29, 2008
    Applicant: ABB Patent GmbH
    Inventors: Dieter Binz, Lothar Deppe, Steffen Keller, Frank Kassubek, Kuno Hug, Reinhard Steinberg, Robert Huber, Wolfgang Waldi, Jorg Gebhardt, Rene Friedrichs
  • Publication number: 20080047362
    Abstract: Method and device to determine the Q factor for a flow meter, with an exciter unit which can be attached to a meter tube to generate a uniform oscillating movement and a sensor unit to measure the oscillating movement, which is influenced by the flow, of the meter tube, and the measured values of which are analyzed by an analysis unit, which is connected downstream, to determine the desired flow parameter and the Q factor, as specified by a stored computational algorithm.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 28, 2008
    Applicant: ABB Patent GmbH
    Inventors: Frank Kassubek, Gunter Petri, Jorg Gebhardt, Lothar Deppe, Rene Friedrichs, Steffen Keller
  • Publication number: 20080028589
    Abstract: A method is disclosed for producing a connection between a measuring tube and at least one flange, e.g., in the case of a Coriolis mass flowmeter. In order to ensure reliable connection of the components in this case, the measuring tube can be inserted at one end over a portion through a flange bore, such that it projects out of the bore on the other side, and that the projecting end be flared out over the sealing face of the flange.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 7, 2008
    Applicant: ABB PATENT GMBH
    Inventors: Reinhard Steinberg, Lothar Deppe, Wolfgang Waldi, Frank Kassubek, Steffen Keller, Jorg Gebhardt, Rene Friedrichs, Robert Huber
  • Publication number: 20080028593
    Abstract: The invention relates to a method for producing a cohesive connection between a tube and a built-in housing, in particular for fixing a measuring tube in the housing of a flowmeter, according to the preamble of patent claims 1 and 4. In order to ensure a reliable connection between the components in this case so that a reliable measurement using the Coriolis mass flowmeter is possible, the invention proposes that ring or tube sections are first of all applied to the measuring tube at least one of said connection locations and are connected to the measuring tube by means of a hard solder connection and, in the region of the ring or tube sections which have been soldered on, the latter are then welded to the housing or housing flanges.
    Type: Application
    Filed: August 3, 2007
    Publication date: February 7, 2008
    Applicant: ABB Patent GmbH
    Inventors: Rene Friedrichs, Frank Kassubek, Kuno Hug, Jorg Gebhardt, Wolfgang Waldi, Reinhard Steinberg, Lothar Deppe, Steffen Keller, Gunter Petri
  • Patent number: 7248974
    Abstract: A measuring instrument whose measuring principle is based on an oscillator, for example an eddy counter, and in which there is arranged a sensor for recording a measured signal (S(t)), which can be supplied to an evaluation unit (2), characterized in that, from the phase increments psi(tau,t), that is to say from the differences between the instantaneous values phi(t) of the phase signal derived from the measured signal S(t) in a phase extractor (18) and values phi(t-tau) time-delayed by a delayed time tau, a coupling indicator value (KI) is formed in such a way that the existence of phase coupling with a further oscillator can be detected on the latter by means of comparison with a coupling reference value (KR).
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: July 24, 2007
    Assignee: ABB Patent GmbH
    Inventors: Axel G. Rossberg, Kilian Bartholome, Jens Timmer, Rene Friedrichs, Frank Buhl, Jorg Herwig
  • Patent number: 7228749
    Abstract: A coriolis mass flow pick-up is disclosed, which can be inserted into a pipeline and has a fluid to be measured flowing through it during operation. The pick-up includes a single measuring pipe, which has an inlet end and an outlet end, an exciter arrangement, which causes the measuring pipe to carry out at least first bending oscillations, and at least two sensors for sensing movement of the measuring pipe. At least two elongate connection parts, which extend freely essentially parallel to the measuring pipe and whose central axes are displaced from the axis of the measuring pipe, are connected on the input side and the output side to the measuring pipe. The connection parts carry out second bending oscillations in the event of an oscillating measuring pipe, with the result that, by the second bending oscillations of the connection parts being superimposed by the oscillations of the measuring pipe, bending forces and torsional moments at the inlet and outlet ends of the measuring pipe are compensated.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: June 12, 2007
    Assignee: ABB Patent GmbH
    Inventors: Frank Kassubek, Jörg Gebhardt, René Friedrichs, Wolfgang Waldi, Steffen Keller, Kuno Hug
  • Patent number: 7216550
    Abstract: A device and a method for operating a Coriolis mass flowmeter with at least one measuring pipe, wherein at least two operative assemblies, which can respectively be operated as an exciter (actuator) and/or as a measuring signal pickup (sensor), are attached to the measuring pipe. The operative assemblies are formed as plunger-type armature sensors with a magnetic core. Each operative assembly is operated either as a sensor or as an actuator or simultaneously as an actuator and as a sensor. Each operative assembly is switched over between the operating mode as a sensor and as an actuator by a switch assigned to it.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: May 15, 2007
    Assignee: ABB Patent GmbH
    Inventors: Ralf Lesjak, Rene Friedrichs, Jorg Gebhardt, Steffen Keller, Frank Kassubek
  • Patent number: 7213470
    Abstract: Coriolis mass flowmeter with a measuring pipe (2) vibrating in coupled flexural and torsional modes, characterized in that an attachment (20) which is formed rotationally symmetrically with respect to an axis of rotational symmetry and can be made to undergo torsional oscillations of the same frequency, but opposite phase, in relation to the torsional oscillating modes of the measuring pipe (2) is mechanically connected to the measuring pipe (2) and the axis of rotational symmetry of the attachment runs parallel to the straight line (8) (central axis) defined by the center points (4a, 6a) of the cross-sectional areas (4, 6) of the inlet and outlet of the measured section or coincides with this line.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: May 8, 2007
    Assignee: ABB Patent GmbH
    Inventors: Jorg Gebhardt, Frank Kassubek, Rene Friedrichs, Wolfgang Waldi, Steffen Keller, Jorg Herwig, Lothar Deppe, Kuno Hug, Armin Gasch
  • Publication number: 20070044575
    Abstract: A coriolis mass flow pick-up is disclosed, which can be inserted into a pipeline and has a fluid to be measured flowing through it during operation. The pick-up includes a single measuring pipe, which has an inlet end and an outlet end, an exciter arrangement, which causes the measuring pipe to carry out at least first bending oscillations, and at least two sensors for sensing movement of the measuring pipe. At least two elongate connection parts, which extend freely essentially parallel to the measuring pipe and whose central axes are displaced from the axis of the measuring pipe, are connected on the input side and the output side to the measuring pipe. The connection parts carry out second bending oscillations in the event of an oscillating measuring pipe, with the result that, by the second bending oscillations of the connection parts being superimposed by the oscillations of the measuring pipe, bending forces and torsional moments at the inlet and outlet ends of the measuring pipe are compensated.
    Type: Application
    Filed: August 25, 2006
    Publication date: March 1, 2007
    Applicant: ABB Patent GmbH
    Inventors: Frank Kassubek, Jorg Gebhardt, Rene Friedrichs, Wolfgang Waldi, Steffen Keller, Kuno Hug
  • Patent number: 7171860
    Abstract: A description is given of a Coriolis mass flowmeter, with a measuring pipe oscillating in coupled flexural and torsional modes. Mechanically connected to the measuring pipe is an attachment which is formed rotationally symmetrically with respect to an axis of rotational symmetry and can be induced to undergo the torsional oscillations of the measuring pipe. The attachment is a multipart body comprising hollow profile rails and/or beams with a closed hollow cross section. The axis of rotational symmetry of the attachment runs parallel to the straight line (8) (central axis) defined by the centre points (4a, 6a) of the cross-sectional areas (4, 6) of the inlet and outlet of the measured section, or coincide with this line.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: February 6, 2007
    Assignee: ABB Patent GmbH
    Inventors: Jorg Gebhardt, Frank Kassubek, Rene Friedrichs, Wolfgang Waldi, Kuno Hug
  • Publication number: 20050139015
    Abstract: Coriolis mass flowmeter with a measuring pipe (2) vibrating in coupled flexural and torsional modes, characterized in that an attachment (20) which is formed. rotationally symmetrically with respect to an axis of rotational symmetry and can be made to undergo torsional oscillations of the same frequency, but opposite phase, in relation to the torsional oscillating modes of the measuring pipe (2) is mechanically connected to the measuring pipe (2) and the axis of rotational symmetry of the attachment runs parallel to the straight line (8) (central axis) defined by the centre points (4a, 6a) of the cross-sectional areas (4, 6) of the inlet and outlet of the measured section or coincides with this line.
    Type: Application
    Filed: October 26, 2004
    Publication date: June 30, 2005
    Applicant: ABB PATENT GMBH
    Inventors: Jorg Gebhardt, Frank Kassubek, Rene Friedrichs, Wolfgang Waldi, Steffen Keller, Jorg Herwig, Lothar Deppe, Kuno Hug, Armin Gasch
  • Publication number: 20050125167
    Abstract: The invention relates to a device and a method for operating a Coriolis mass flowmeter with at least one measuring pipe, and is characterized in that at least two operative assemblies, which can respectively be operated as an exciter (actuator) and/or as a measuring signal pickup (sensor), are attached to the measuring pipe. The operative assemblies are formed as plunger-type armature sensors with a magnetic core. Each operative,assembly is operated either as a sensor or as an actuator or simultaneously as an actuator and as a sensor. Each operative assembly is switched over between the operating mode as a sensor and as an actuator by a switch assigned to it.
    Type: Application
    Filed: October 26, 2004
    Publication date: June 9, 2005
    Applicant: ABB Patent GmbH
    Inventors: Ralf Lesjak, Rene Friedrichs, Jorg Gebhardt, Steffen Keller, Frank Kassubek
  • Publication number: 20050115335
    Abstract: A description is given of a Coriolis mass flowmeter, with a measuring pipe oscillating in coupled flexural and torsional modes. Mechanically connected to the measuring pipe is an attachment which is formed rotationally symmetrically with respect to an axis of rotational symmetry and can be induced to undergo the torsional oscillations of the measuring pipe. The attachment is a multipart body comprising hollow profile rails and/or beams with a closed hollow cross section. The axis of rotational symmetry of the attachment runs parallel to the straight line (8) (central axis) defined by the centre points (4a, 6a) of the cross-sectional areas (4, 6) of the inlet and outlet of the measured section, or coincide with this line.
    Type: Application
    Filed: October 26, 2004
    Publication date: June 2, 2005
    Applicant: ABB Patent GmbH
    Inventors: Jorg Gebhardt, Frank Kassubek, Rene Friedrichs, Wolfgang Waldi, Kuno Hug
  • Publication number: 20050114055
    Abstract: A measuring instrument whose measuring principle is based on an oscillator, for example an eddy counter, and in which there is arranged a sensor for recording a measured signal (S(t)), which can be supplied to an evaluation unit (2), characterized in that, from the phase increments psi(tau,t), that is to say from the differences between the instantaneous values phi(t) of the phase signal derived from the measured signal S(t) in a phase extractor (18) and values phi(t-tau) time-delayed by a delayed time tau, a coupling indicator value (KI) is formed in such a way that the existence of phase coupling with a further oscillator can be detected on the latter by means of comparison with a coupling reference value (KR).
    Type: Application
    Filed: September 17, 2004
    Publication date: May 26, 2005
    Applicants: ABB Patent GmbH, Universitat Freiburg
    Inventors: Axel Rossberg, Kilian Bartholome, Jens Timmer, Rene Friedrichs, Frank Buhl, Jorg Herwig