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Helmut Pfeiffer: Device for monitoring a predetermined level in a container. Endress &plus Hauser &plus Co, Bose McKinney & Evans, March 27, 2001: US06205855 (66 worldwide citation)

A device for monitoring a predetermined level in a container contains a sensor formed by a mechanical vibratory system comprising two vibratory rods, of which at least one vibratory rod is tubular and surrounds the other vibratory rod coaxially. Each of the two vibratory rods is secured to a common ...


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Sascha D&apos Angelico, Sergej Lopatin: Method and apparatus for establishing and/or monitoring the filling level of a medium in a container. Endress &plus Hauser &plus Co, Bose McKinney & Evans, May 21, 2002: US06389891 (56 worldwide citation)

The invention relates to a method and an apparatus for establishing and/or monitoring the filling level of a medium in a container and to the determination of the density of a medium in a container.


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Robert Kölblin, Wolfgang Eiche: Automatic can address allocation method. Endress &plus Hauser &plus Co, Bose McKinney & Evans, April 10, 2001: US06216172 (33 worldwide citation)

For automatic CAN address allocation each bus subscriber still to be allocated an address, generates a random value for a provisional address on system power up. On receiving a request to commence address allocation each bus subscriber writes a telegram claiming the provisional address into the CAN ...


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William Patrick McCarthy, Kenneth L Perdue, Donald D Cummings, Gerd Wartmann: Probe mapping diagnostic methods. Endress&plus Hauser &plus Co, Bose McKinney & Evans, May 6, 2003: US06559657 (23 worldwide citation)

A method and apparatus for processing a time domain reflectometry (TDR) signal having a plurality of reflection pulses to generate a valid output result corresponding to a process variable for a material in a vessel. The method includes the steps of determining a reference signal along a probe in th ...


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Ulfert Drewes, Elke Schmidt, Andreas Rossberg, Frank Hegner, Thomas Velten: Capacitive pressure sensor cells or differential pressure sensor cells and methods for manufacturing the same. Endress &plus Hauser &plus Co, Bose McKinney & Evans, July 31, 2001: US06267009 (18 worldwide citation)

These capacitive pressure sensor cells have joints between substrates and diaphragms being both pressure and/or tension-proof and high-vacuum-tight and long-term-stable. The sensor cell comprises a ceramic substrate (


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Winfried Maier, Hartmut Güthner, Roberto Cudini: Electronic device for use in regions subject to explosion hazards. Endress &plus Hauser &plus Co, Bose McKinney & Evans, April 2, 2002: US06366436 (18 worldwide citation)

A description is given of an electronic device for use in regions subject to explosion hazards, which is small and light, can be produced cost-effectively and offers a high degree of flexibility, having a housing (


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Roland Müller, Wolfram Lütke: Filling level gage. Endress &plus Hauser &plus Co, Jones Tullar & Cooper P C, August 19, 2003: US06606904 (15 worldwide citation)

A filling level gage operating with microwaves, for measuring a filling level of a filling material (


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