BR9206318A - Medidor de fluxo de massa de efeito coriolis - Google Patents

Medidor de fluxo de massa de efeito coriolis

Info

Publication number
BR9206318A
BR9206318A BR9206318A BR9206318A BR9206318A BR 9206318 A BR9206318 A BR 9206318A BR 9206318 A BR9206318 A BR 9206318A BR 9206318 A BR9206318 A BR 9206318A BR 9206318 A BR9206318 A BR 9206318A
Authority
BR
Brazil
Prior art keywords
mass flow
flow meter
coriolis effect
effect mass
coriolis
Prior art date
Application number
BR9206318A
Other languages
English (en)
Inventor
Paul Zoltan Kalotay
Original Assignee
Micro Motion Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Micro Motion Inc filed Critical Micro Motion Inc
Publication of BR9206318A publication Critical patent/BR9206318A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8422—Coriolis or gyroscopic mass flowmeters constructional details exciters
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8427—Coriolis or gyroscopic mass flowmeters constructional details detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
    • G01F1/8431—Coriolis or gyroscopic mass flowmeters constructional details electronic circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
    • G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
    • G01F1/78—Direct mass flowmeters
    • G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
    • G01F1/84—Coriolis or gyroscopic mass flowmeters
    • G01F1/845—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits
    • G01F1/8468—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits
    • G01F1/849—Coriolis or gyroscopic mass flowmeters arrangements of measuring means, e.g., of measuring conduits vibrating measuring conduits having straight measuring conduits
BR9206318A 1991-08-01 1992-07-30 Medidor de fluxo de massa de efeito coriolis BR9206318A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73934791A 1991-08-01 1991-08-01
PCT/US1992/006362 WO1993003336A1 (en) 1991-08-01 1992-07-30 Coriolis effect mass flow meter

Publications (1)

Publication Number Publication Date
BR9206318A true BR9206318A (pt) 1995-10-24

Family

ID=24971870

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9206318A BR9206318A (pt) 1991-08-01 1992-07-30 Medidor de fluxo de massa de efeito coriolis

Country Status (10)

Country Link
US (1) US5321991A (pt)
EP (1) EP0597021B1 (pt)
JP (1) JPH0820295B2 (pt)
AU (1) AU2433592A (pt)
BR (1) BR9206318A (pt)
CA (1) CA2113800C (pt)
DE (1) DE69210244T2 (pt)
HK (1) HK1003233A1 (pt)
HU (1) HU216462B (pt)
WO (1) WO1993003336A1 (pt)

Families Citing this family (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2133570T3 (es) * 1993-07-21 1999-09-16 Flowtec Ag Sensor del caudal segun el principio de coriolis.
DE4327052C3 (de) * 1993-08-12 1998-10-22 Krohne Ag Massendurchflußmeßgerät
DE59404467D1 (de) * 1993-11-08 1997-12-04 Burckhardt Ag Maschf Verfahren und Vorrichtung zum schnellen Betanken eines Druckbehälters mit einem gasförmigen Medium
DE4417332C2 (de) * 1994-05-18 2000-01-13 Krohne Ag Basel Massendurchflußmeßgerät
DE4423168C2 (de) * 1994-07-04 1998-09-24 Krohne Ag Massendurchflußmeßgerät
US5497666A (en) * 1994-07-20 1996-03-12 Micro Motion, Inc. Increased sensitivity coriolis effect flowmeter using nodal-proximate sensors
EP0698783A1 (de) * 1994-08-16 1996-02-28 Endress + Hauser Flowtec AG Auswerte-Elektronik eines Coriolis-Massedurchflussaufnehmers
JPH08247816A (ja) * 1995-03-09 1996-09-27 Fuji Electric Co Ltd 質量流量計
ES2149943T3 (es) * 1995-07-21 2000-11-16 Flowtec Ag Medidor de caudal masico segun el principio de coriolis con al menos un tubo de medicion.
US5831178A (en) * 1995-08-29 1998-11-03 Fuji Electric Co., Ltd. Vibration type measuring instrument
DE19652002C2 (de) * 1995-12-15 2003-03-27 Flowtec Ag Schwingungs-Meßgerät
EP0803713B1 (de) 1996-04-27 1999-12-01 Endress + Hauser Flowtec AG Coriolis-Massedurchflussaufnehmer
US5854430A (en) * 1996-05-07 1998-12-29 Endress + Hauser Flowtec Ag Coriolis mass flow sensor
DE19719587A1 (de) * 1997-05-09 1998-11-19 Bailey Fischer & Porter Gmbh Verfahren und Einrichtung zur Erkennung und Kompensation von Nullpunkteinflüssen auf Coriolis-Massedurchflußmesser
US8447534B2 (en) 1997-11-26 2013-05-21 Invensys Systems, Inc. Digital flowmeter
US20030216874A1 (en) 2002-03-29 2003-11-20 Henry Manus P. Drive techniques for a digital flowmeter
US8467986B2 (en) * 1997-11-26 2013-06-18 Invensys Systems, Inc. Drive techniques for a digital flowmeter
US6311136B1 (en) * 1997-11-26 2001-10-30 Invensys Systems, Inc. Digital flowmeter
US7784360B2 (en) 1999-11-22 2010-08-31 Invensys Systems, Inc. Correcting for two-phase flow in a digital flowmeter
US5979246A (en) * 1998-02-09 1999-11-09 Micro Motion, Inc. Spring rate balancing of the flow tube and a balance bar in a straight tube Coriolis flowmeter
US6178828B1 (en) * 1998-02-11 2001-01-30 Wade M. Mattar Free standing Coriolis driver
WO1999051946A1 (de) * 1998-04-03 1999-10-14 Endress + Hauser Flowtec Ag Verfahren zum massedurchfluss-messen und entsprechende aufnehmer
EP1090274B1 (en) 1998-06-26 2017-03-15 Weatherford Technology Holdings, LLC Fluid parameter measurement in pipes using acoustic pressures
US6164140A (en) * 1998-10-09 2000-12-26 Kalinoski; Richard W. Solid state transducer for Coriolis flowmeter
US6748813B1 (en) 1998-12-08 2004-06-15 Emerson Electric Company Coriolis mass flow controller
US6513392B1 (en) 1998-12-08 2003-02-04 Emerson Electric Co. Coriolis mass flow controller
US6463813B1 (en) * 1999-06-25 2002-10-15 Weatherford/Lamb, Inc. Displacement based pressure sensor measuring unsteady pressure in a pipe
US6318186B1 (en) * 1999-06-28 2001-11-20 Micro Motion, Inc. Type identification and parameter selection for drive control in a coriolis flowmeter
US6505131B1 (en) * 1999-06-28 2003-01-07 Micro Motion, Inc. Multi-rate digital signal processor for signals from pick-offs on a vibrating conduit
US6536291B1 (en) 1999-07-02 2003-03-25 Weatherford/Lamb, Inc. Optical flow rate measurement using unsteady pressures
US6691584B2 (en) 1999-07-02 2004-02-17 Weatherford/Lamb, Inc. Flow rate measurement using unsteady pressures
US6412354B1 (en) 1999-12-16 2002-07-02 Halliburton Energy Services, Inc. Vibrational forced mode fluid property monitor and method
US6601458B1 (en) 2000-03-07 2003-08-05 Weatherford/Lamb, Inc. Distributed sound speed measurements for multiphase flow measurement
US6813962B2 (en) * 2000-03-07 2004-11-09 Weatherford/Lamb, Inc. Distributed sound speed measurements for multiphase flow measurement
DE10017963C2 (de) * 2000-04-12 2003-01-30 Krohne Ag Basel Massendurchflussmessgerät
JP2001343268A (ja) * 2000-06-05 2001-12-14 Kazumasa Onishi クランプ式コリオリ流量計
US6782150B2 (en) 2000-11-29 2004-08-24 Weatherford/Lamb, Inc. Apparatus for sensing fluid in a pipe
DE10137921A1 (de) * 2001-08-02 2003-02-13 Abb Research Ltd Verfahren und Vorrichtung zum Bestimmen des Massendurchflusses
US7059172B2 (en) * 2001-11-07 2006-06-13 Weatherford/Lamb, Inc. Phase flow measurement in pipes using a density meter
US6698297B2 (en) 2002-06-28 2004-03-02 Weatherford/Lamb, Inc. Venturi augmented flow meter
US6971259B2 (en) 2001-11-07 2005-12-06 Weatherford/Lamb, Inc. Fluid density measurement in pipes using acoustic pressures
DE10200768B4 (de) * 2001-12-06 2004-03-11 Krohne Ag Massendurchflussmessgerät und Verfahren zum Betrieb eines Massendurchflussmessgerätes
AU2003255235A1 (en) * 2002-08-08 2004-02-25 Cidra Corporation Apparatus and method for measuring multi-phase flows in pulp and paper industry applications
US6986276B2 (en) * 2003-03-07 2006-01-17 Weatherford/Lamb, Inc. Deployable mandrel for downhole measurements
US6837098B2 (en) 2003-03-19 2005-01-04 Weatherford/Lamb, Inc. Sand monitoring within wells using acoustic arrays
NL1023395C2 (nl) * 2003-05-12 2004-11-15 Tno Coriolis Massastroommeter.
DE10322763A1 (de) * 2003-05-19 2004-12-09 Helios + Zaschel Gmbh Verfahren und Vorrichtung zur Messung eines Massestroms
DE10322851A1 (de) * 2003-05-19 2004-12-16 Endress + Hauser Flowtec Ag, Reinach Coriolis-Durchflußmeßgerät
DE10335665B4 (de) * 2003-08-04 2005-10-27 Siemens Ag Massendurchflussmessgerät
US20080264182A1 (en) * 2003-08-22 2008-10-30 Jones Richard T Flow meter using sensitive differential pressure measurement
US6910388B2 (en) * 2003-08-22 2005-06-28 Weatherford/Lamb, Inc. Flow meter using an expanded tube section and sensitive differential pressure measurement
DE10351310B4 (de) * 2003-10-31 2009-08-13 Abb Ag Vorrichtung und Verfahren zum Betrieb eines Coriolis-Massendurchflussmessers
WO2005098359A1 (ja) * 2004-04-07 2005-10-20 Murata Manufacturing Co., Ltd. 角速度計測装置
DE102004026322B3 (de) * 2004-05-26 2005-09-15 Krohne Ag Coriolis-Massendurchflußmeßgerät
US7073396B2 (en) * 2004-05-26 2006-07-11 Krohne Ag Coriolis mass flowmeter
US7109471B2 (en) * 2004-06-04 2006-09-19 Weatherford/Lamb, Inc. Optical wavelength determination using multiple measurable features
US7480056B2 (en) * 2004-06-04 2009-01-20 Optoplan As Multi-pulse heterodyne sub-carrier interrogation of interferometric sensors
WO2006014153A1 (en) * 2004-07-01 2006-02-09 Micro Motion, Inc. Split balance weights for eliminating density effect on flow
EP1628118A2 (de) * 2004-07-29 2006-02-22 Krohne AG Coriolis-Massendurchflussmessgerät und Verfahren zur Herstellung eines Coriolis-Massendurchflussmessgeräts
US7318353B2 (en) * 2004-12-22 2008-01-15 Lancer Partnership Ltd. Method and apparatus for a product displacement sensing device
US7337084B2 (en) * 2005-06-21 2008-02-26 Invensys Systems, Inc. Switch-activated zero checking feature for a Coriolis flowmeter
US8021469B2 (en) * 2005-07-14 2011-09-20 Access Business Group International Llc Control methods for an air treatment system
US7503217B2 (en) * 2006-01-27 2009-03-17 Weatherford/Lamb, Inc. Sonar sand detection
DE102007024276A1 (de) * 2007-05-23 2008-11-27 Endress + Hauser Flowtec Ag Verfahren zur Messung und/oder Überwachung eines Strömungsparameters und entsprechende Vorrichtung
CA2701759C (en) 2007-10-08 2016-03-08 Micro Motion, Inc. A flow device and method for operating a flow device
SG171750A1 (en) * 2008-12-10 2011-07-28 Micro Motion Inc Method and apparatus for vibrating a flow tube of a vibrating flow meter
JP5542355B2 (ja) * 2009-03-24 2014-07-09 トキコテクノ株式会社 振動式測定装置
US9341059B2 (en) * 2009-04-15 2016-05-17 Schlumberger Technology Corporation Microfluidic oscillating tube densitometer for downhole applications
DE102009045557A1 (de) * 2009-10-12 2011-04-14 Robert Bosch Gmbh Befestigungsanordnung für eine Sensoranordnung und Sensoranordnung
DE102011013263B4 (de) * 2011-03-07 2018-02-15 Krohne Ag Coriolis-Massedurchflussmessgerät
JP5826929B2 (ja) * 2011-07-13 2015-12-02 マイクロ モーション インコーポレイテッド 共振周波数を求めるための振動式メーターおよび方法
MY149988A (en) * 2011-08-22 2013-11-15 Univ Malaya An inferential coriolis mass flowmeter
JP5737477B2 (ja) * 2012-07-05 2015-06-17 株式会社村田製作所 流量計、透析機、薬液注入装置
US9410422B2 (en) 2013-09-13 2016-08-09 Chevron U.S.A. Inc. Alternative gauging system for production well testing and related methods
EP3194903B8 (en) 2014-09-19 2021-10-20 Weatherford Technology Holdings, LLC Coriolis flow meter having flow tube with equalized pressure differential
CN110352333B (zh) * 2017-03-07 2022-03-22 高准公司 用于振动导管的驱动器、传感器和撑杆
US10429224B2 (en) * 2017-12-05 2019-10-01 General Electric Company Interface for a Coriolis flow sensing assembly
EP3598101B1 (en) * 2018-07-19 2023-09-27 Alia Instruments Holding B.V. Active density meter
CN109668599B (zh) * 2019-01-16 2024-03-26 江苏华海测控技术有限公司 一种科氏质量流量计
US11333538B2 (en) 2020-04-22 2022-05-17 Saudi Arabian Oil Company Systems and methods for fluid flow measurement with mass flow and electrical permittivity sensors
DE102020123999A1 (de) * 2020-09-15 2022-03-17 Endress+Hauser Flowtec Ag Vibronischer Messaufnehmer mit exzentrischer Anregung

Family Cites Families (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3329019A (en) * 1964-10-26 1967-07-04 Anatole J Sipin Mass flow metering means
SU401908A1 (ru) * 1970-12-11 1973-10-12 Резонансный плотномер
SU427269A1 (ru) * 1972-05-30 1974-05-05 Т. М. Алиев, Г. С. Бун тов , В. Скобло Проточный вибрационный измеритель вязкости жидкости
US4109524A (en) * 1975-06-30 1978-08-29 S & F Associates Method and apparatus for mass flow rate measurement
USRE31450E (en) * 1977-07-25 1983-11-29 Micro Motion, Inc. Method and structure for flow measurement
US4286470A (en) * 1979-10-19 1981-09-01 Lfe Corporation Clamp-on ultrasonic transducer
SU920383A1 (ru) * 1979-11-30 1982-04-15 Специальное Конструкторское Бюро Института Математики И Механики Ан Азсср Устройство дл измерени массового расхода сред
SU1008617A1 (ru) * 1980-02-13 1983-03-30 Специальное Конструкторское Бюро Института Математики И Механики Ан Азсср Способ измерени массового расхода среды
JPS57137818A (en) * 1981-02-19 1982-08-25 Tokyo Keiki Co Ltd Straight tube type mass flowmeter
JPS58153121A (ja) * 1982-03-08 1983-09-12 Yokogawa Hokushin Electric Corp 質量流量計
JPS58206926A (ja) * 1982-04-30 1983-12-02 Yokogawa Hokushin Electric Corp 質量流量計
US4491025A (en) * 1982-11-03 1985-01-01 Micro Motion, Inc. Parallel path Coriolis mass flow rate meter
DE3329544A1 (de) * 1983-08-16 1985-03-07 Karl Dipl.-Ing. 8060 Dachau Küppers Massedurchflussmesser
SU1283614A1 (ru) * 1985-02-08 1987-01-15 Специальное Конструкторское Бюро Математического Моделирования С Опытным Производством При Институте Математики И Механики Ан Азсср Измеритель плотности вибрационно-частотного типа
DE3505166A1 (de) * 1985-02-15 1986-08-21 Danfoss A/S, Nordborg Massendurchfluss-messgeraet nach dem coriolis-prinzip
US4622858A (en) * 1985-03-25 1986-11-18 The Babcock & Wilcox Company Apparatus and method for continuously measuring mass flow
US4691578A (en) * 1986-02-21 1987-09-08 Fischer & Porter Company Coriolis-type mass flowmeter
US4756197A (en) * 1986-02-21 1988-07-12 Fischer & Porter Co. Coriolis-type mass flowmeter
US4703660A (en) * 1986-04-01 1987-11-03 The Babcock & Wilcox Company Apparatus and method for continuously measuring mass flow
US4823614A (en) * 1986-04-28 1989-04-25 Dahlin Erik B Coriolis-type mass flowmeter
US4831885A (en) * 1986-04-28 1989-05-23 Dahlin Erik B Acoustic wave supressor for Coriolis flow meter
FR2599182B1 (fr) * 1986-05-21 1991-10-31 Telemecanique Electrique Procede et dispositif de commande d'un electro-aimant dont l'excitation, par un courant alternatif, provoque la mise en contact de deux pieces
GB2192714A (en) * 1986-07-16 1988-01-20 Schlumberger Electronics Coriolis mass flow meter
US4823613A (en) * 1986-10-03 1989-04-25 Micro Motion, Inc. Density insensitive coriolis mass flow rate meter
US4938075A (en) * 1987-02-12 1990-07-03 Lew Hyok S Convective inertia force flowmeter
GB8705758D0 (en) * 1987-03-11 1987-04-15 Schlumberger Electronics Uk Mass flow measurement
US4949583A (en) * 1987-11-20 1990-08-21 Flowtec Ag Method of mass flow measurement by the coriolis principle and mass flow meter operating by the coriolis principle
US5115683A (en) * 1988-09-27 1992-05-26 K-Flow Division Of Kane Steel Co., Inc. Coriolis mass flow meter adapted for low flow rates
GB8829825D0 (en) * 1988-12-21 1989-02-15 Schlumberger Ind Ltd A combined output and drive circuit for a mass flow transducer
US5009109A (en) * 1989-12-06 1991-04-23 Micro Motion, Inc. Flow tube drive circuit having a bursty output for use in a coriolis meter
DE4100006A1 (de) * 1991-01-02 1992-07-09 Joerg Dr Zaschel Universelles massestrommessgeraet fuer fluessigkeiten, gase und feststoffe

Also Published As

Publication number Publication date
CA2113800A1 (en) 1993-02-02
US5321991A (en) 1994-06-21
HU9400268D0 (en) 1994-05-30
EP0597021A1 (en) 1994-05-18
EP0597021B1 (en) 1996-04-24
HU216462B (hu) 1999-06-28
WO1993003336A1 (en) 1993-02-18
HUT67983A (en) 1995-05-29
JPH0820295B2 (ja) 1996-03-04
DE69210244T2 (de) 1996-10-31
AU2433592A (en) 1993-03-02
HK1003233A1 (en) 1998-10-16
CA2113800C (en) 1999-05-18
JPH06509649A (ja) 1994-10-27
DE69210244D1 (de) 1996-05-30

Similar Documents

Publication Publication Date Title
BR9206318A (pt) Medidor de fluxo de massa de efeito coriolis
DE59207827D1 (de) Massendurchflussmessgerät
DE69327772D1 (de) Coriolisdurchflussmesser
DE59307692D1 (de) Massendurchflussmessgerät
DK0660920T3 (da) Coriolis-massegennemstrømningsdetektor
DE69633208D1 (de) Coriolis-Massendurchflussmesser
DK0596178T3 (da) Coriolis-massestrømsmåler
DE69531363D1 (de) Coriolis-Massendurchflussmesser
DE69331030D1 (de) Massendurchflussmesser
DK0753720T3 (da) Massestrømningsmåler
DE69220560T2 (de) Ultraschallströmungsmessgerät
HK1001139A1 (en) Increased sensitivity coriolis effect flowmeter using nodal-proximate sensors
DE59510007D1 (de) Massendurchflussmessgerät
DE69229799T2 (de) Flüssigkeitsmassendurchflussmesser
DK0608793T3 (da) Magnetisk-iduktiv flowmåler
DE69505663T2 (de) Schraubenförmiger Coriolis-Massedurchflussaufnehmer
DE69533747D1 (de) Coriolisdurchflussmesser
DE69231960D1 (de) Durchflussmesser
DE69420783D1 (de) Magnetisch-induktiver Durchflussmesser
DE59700779D1 (de) Coriolis-Massedurchflussaufnehmer
EP0537766A3 (en) Device for measuring the mass flow rate following the coriolis principle
FR2727202B1 (fr) Debitmetre massique
DE3650535T2 (de) Coriolis-Massendurchflussmesser Coriolis-Massendurchflussmesser
DE59203530D1 (de) Coriolis-Massendurchflussmessgerät.
DK89190A (da) Flowmeter

Legal Events

Date Code Title Description
EE Request for examination
FF Decision: intention to grant
KD Notifcation of receipt (letter patent)
FG9A Patent or certificate of addition granted
B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 30/07/2012