DE2963474D1 - Self aligning spiral groove face seal - Google Patents

Self aligning spiral groove face seal

Info

Publication number
DE2963474D1
DE2963474D1 DE7979101834T DE2963474T DE2963474D1 DE 2963474 D1 DE2963474 D1 DE 2963474D1 DE 7979101834 T DE7979101834 T DE 7979101834T DE 2963474 T DE2963474 T DE 2963474T DE 2963474 D1 DE2963474 D1 DE 2963474D1
Authority
DE
Germany
Prior art keywords
diameter
sealing
ring
face
spiral groove
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
DE7979101834T
Other languages
English (en)
Inventor
Josef Sedy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
John Crane Inc
Original Assignee
Crane Packing Co
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 Crane Packing Co filed Critical Crane Packing Co
Application granted granted Critical
Publication of DE2963474D1 publication Critical patent/DE2963474D1/de
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3404—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal
    • F16J15/3408—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface
    • F16J15/3412—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member and characterised by parts or details relating to lubrication, cooling or venting of the seal at least one ring having an uneven slipping surface with cavities

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Sealing (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Sealing Devices (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
  • Gasket Seals (AREA)
  • Rotary Pumps (AREA)
DE7979101834T 1979-01-15 1979-06-08 Self aligning spiral groove face seal Expired DE2963474D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/003,251 US4212475A (en) 1979-01-15 1979-01-15 Self aligning spiral groove face seal

Publications (1)

Publication Number Publication Date
DE2963474D1 true DE2963474D1 (en) 1982-09-30

Family

ID=21704927

Family Applications (1)

Application Number Title Priority Date Filing Date
DE7979101834T Expired DE2963474D1 (en) 1979-01-15 1979-06-08 Self aligning spiral groove face seal

Country Status (8)

Country Link
US (1) US4212475A (de)
EP (1) EP0013678B1 (de)
JP (1) JPS55100471A (de)
AT (1) ATE1433T1 (de)
AU (1) AU524129B2 (de)
CA (1) CA1124759A (de)
DE (1) DE2963474D1 (de)
MX (1) MX152140A (de)

Families Citing this family (132)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2474605A1 (fr) * 1980-01-24 1981-07-31 Jeumont Schneider Dispositif de securite pour pompe
US4327921A (en) * 1980-12-08 1982-05-04 Caterpillar Tractor Co. Pressure balanced - constant engagement force seal
CH660216A5 (de) * 1981-04-07 1987-03-31 Escher Wyss Ag Ringfoermige dichtung und deren verwendung in einer aussenkranz-rohrturbine.
US4426092A (en) 1981-10-23 1984-01-17 Borg-Warner Corporation Mechanical seal assembly
IL65289A0 (en) * 1982-03-19 1982-05-31 Lipschitz Abraham Hydrodynamic non-contacting seal for rotary machines
US4482194A (en) * 1983-09-12 1984-11-13 Disposable Waste Systems, Inc. Fluid pressure assisted rotary shaft seal with labyrinth bushing and replacement seal sleeve cartridge
US4787831A (en) * 1983-09-20 1988-11-29 Air Products And Chemicals, Inc. Dual seal system for roots blower
US4643437A (en) * 1985-10-21 1987-02-17 Borg-Warner Industrial Products, Inc. Mechanical seal with automatic gap convergence control
US4691276A (en) * 1985-10-21 1987-09-01 Borg-Warner Industrial Products, Inc. Adaptive control system for mechanical seal assembly
US4722534A (en) * 1985-12-18 1988-02-02 Borg-Warner Industrial Products, Inc. Face seal with automatic face convergence means
FR2596312B1 (fr) * 1986-03-26 1991-11-29 Snecma Joint d'etancheite tournant plat et son procede d'usinage
GB8625391D0 (en) * 1986-10-23 1986-11-26 Crane Packing Ltd Mechanical face seals
DE3745037C2 (de) * 1986-10-28 1997-01-30 Pacific Wietz Gmbh & Co Kg Gasgesperrte, kontaktlose Dichtungsanordnung für eine Welle mit Dichtungsgehäuse
CH677266A5 (de) * 1986-10-28 1991-04-30 Pacific Wietz Gmbh & Co Kg
US5368314A (en) * 1986-10-28 1994-11-29 Pacific Wietz Gmbh & Co. Kg Contactless pressurizing-gas shaft seal
DE3940258A1 (de) * 1989-10-12 1991-05-29 Pacific Wietz Gmbh & Co Kg Gasgesperrte, kontaktlose dichtungsanordnung fuer eine welle
US4836561A (en) * 1987-02-17 1989-06-06 University Of New Mexico Wavy-tilt-dam seal ring
US4792146A (en) * 1987-02-17 1988-12-20 University Of New Mexico Radially compliant - zero net thermal radial taper mechanical face seal
US4768790A (en) * 1987-05-22 1988-09-06 John Crane-Houdaille, Inc. Mechanical face seal having centering means
US4889348A (en) * 1987-06-10 1989-12-26 John Crane-Houdaille, Inc. Spiral groove seal system for high vapor-pressure liquids
AU626266B2 (en) * 1987-06-10 1992-07-30 John Crane Inc. Spiral-groove seal system for high vapor-pressure liquids
US4838559A (en) * 1987-06-17 1989-06-13 Westinghouse Electric Corp. Reactor coolant pump hydrostatic sealing assembly with improved hydraulic balance
DE3722110A1 (de) * 1987-07-03 1989-01-12 Burgmann Dichtungswerk Feodor Die anordnung einer gasgeschmierten gleitringdichtung und dichtungsanordnung fuer eine welle
US4848774A (en) * 1987-08-31 1989-07-18 Westinghouse Electric Corp. Reactor coolant pump hydrostatic sealing assembly with externally pressurized hydraulic balance chamber
USRE34319E (en) * 1988-07-21 1993-07-20 John Crane Inc. Dynamic seal arrangement for impeller pump
US4884945A (en) * 1988-07-21 1989-12-05 John Crane, Inc. Dynamic seal arrangement for impeller pump
DE3834214A1 (de) * 1988-10-07 1990-04-12 Burgmann Dichtungswerk Feodor Dichtung
DE3901362A1 (de) * 1989-01-18 1990-07-19 Burgmann Dichtungswerk Feodor Gleitringdichtung zur abdichtung eines gasfoermigen mediums
US5143384A (en) * 1989-04-14 1992-09-01 Eg&G Sealol, Inc. Bi-directional, non-contact face seal
GB2231105B (en) * 1989-04-24 1993-04-14 Sealol Drained face seal
CH680606A5 (de) * 1989-07-12 1992-09-30 Escher Wyss Ag
CH680607A5 (de) * 1989-07-12 1992-09-30 Escher Wyss Ag
US4997191A (en) * 1989-10-17 1991-03-05 Gits Bros. Mfg. Co. Adjustable shaft seal and method of adjustment
US5217233A (en) * 1989-10-30 1993-06-08 John Crane Inc. Spiral groove seal system for sealing a high pressure gas
US5039113A (en) * 1990-01-17 1991-08-13 Eg&G Sealol, Inc. Spiral groove gas lubricated seal
US5249812A (en) * 1990-03-12 1993-10-05 John Crane Inc. Barrier seal systems
US5137284A (en) * 1990-03-16 1992-08-11 Stein Seal Company Stationary seal ring assembly for use in dry gas face seal assemblies
US5253876A (en) * 1990-03-28 1993-10-19 Eg&G Sealol, Inc. System and method for actively cooling dry-running gas seals
US5066026A (en) * 1990-06-11 1991-11-19 Kaydon Corporation Gas face seal
JPH0756345B2 (ja) * 1990-07-09 1995-06-14 株式会社荏原製作所 非接触端面シール
US5071141A (en) * 1990-07-17 1991-12-10 John Crane Inc. Spiral groove seal arrangement for high vapor-pressure liquids
US5492341A (en) * 1990-07-17 1996-02-20 John Crane Inc. Non-contacting, gap-type seal having a ring with a patterned seal face
US5090712A (en) * 1990-07-17 1992-02-25 John Crane Inc. Non-contacting, gap-type seal having a ring with a patterned microdam seal face
US5224714A (en) * 1990-07-18 1993-07-06 Ebara Corporation Noncontacting face seal
US5356158A (en) * 1990-10-11 1994-10-18 Rotoflex, Inc. Resilient rotary seal with projecting edge
GB9103217D0 (en) * 1991-02-15 1991-04-03 Crane John Uk Ltd Mechanical face seals
US5174584A (en) * 1991-07-15 1992-12-29 General Electric Company Fluid bearing face seal for gas turbine engines
US5226677A (en) * 1991-08-09 1993-07-13 The Johnson Corporation Rotary joint with extended life seal
US5722665A (en) * 1992-02-26 1998-03-03 Durametallic Corporation Spiral groove face seal
DE4303050B4 (de) * 1992-02-26 2004-02-26 Sedy, Josef, Mt. Prospect Gleitringdichtung
US5199172A (en) * 1992-04-02 1993-04-06 John Crane Inc. Method of manufacturing a pinless retainer for a primary ring
US5632435A (en) * 1992-05-27 1997-05-27 Sulzer-Escher Wyss Ag Process for the production of a soldered joint
CA2096759A1 (en) * 1992-08-06 1994-02-07 Mark G. Pospisil Mechanical end face seal system
US5375853B1 (en) * 1992-09-18 1998-05-05 Crane John Inc Gas lubricated barrier seal
US5398943A (en) * 1992-11-12 1995-03-21 Nippon Pillar Packing Co., Ltd. Seal device of the non-contact type
US5501470A (en) * 1992-12-11 1996-03-26 Nippon Pillar Packing Co., Ltd. Non-contacting shaft sealing device with grooved face pattern
CA2100230C (en) * 1993-07-09 2002-04-02 Revolve Technologies Inc. Simple gas shaft sealing device with flexible rotor
US5441283A (en) * 1993-08-03 1995-08-15 John Crane Inc. Non-contacting mechanical face seal
EP0670977A4 (de) * 1993-08-26 1995-12-20 Durametallic Corp Gleitringdichtung mit doppelnutzanordnung.
DE69430063T2 (de) * 1993-09-01 2002-09-12 Flowserve Man Corp Irving Gleitringdichtung mit winkel- und ringförmigen nuten
US5490679A (en) * 1993-12-20 1996-02-13 John Crane Inc. Seal ring design
US5529315A (en) * 1994-02-14 1996-06-25 John Crane Inc. Tandem seal arrangement for mechanical face seals
US5499824A (en) * 1994-03-29 1996-03-19 Georgia Tech Research Corporation Mechanical seal with compliant face
WO1995029353A1 (en) * 1994-04-20 1995-11-02 Durametallic Corporation Face seal with angled grooves
US5558342A (en) * 1994-08-05 1996-09-24 Durametallic Corporation Mechanical seal with spring drive
UA45988C2 (uk) 1994-11-16 2002-05-15 Дрессер-Ренд Компані Ущільнення вала
GB9508034D0 (en) * 1995-04-20 1995-06-07 Dresser Rand Co A shaft seal
DE19549189C2 (de) * 1995-12-30 1998-04-09 Pacific Wietz Gmbh & Co Kg Gasgesperrte, kontaktlose Dichtungsanordnung für eine Welle
US5941532A (en) 1996-06-20 1999-08-24 Rexnord Corporation Aerospace housing and shaft assembly with noncontacting seal
US5833518A (en) * 1996-08-02 1998-11-10 Flowserve Management Company Method for forming a wavy face ring
US5938206A (en) * 1996-11-01 1999-08-17 John Crane Inc. Pressure responsive primary ring for a non-contacting mechanical end face seal
US5681047A (en) * 1996-11-01 1997-10-28 John Crane Inc. Pressure responsive primary ring geometry for a non-contacting mechanical end face seal
DE19722870C2 (de) * 1996-12-06 2000-09-07 Karl Uth Gasgeschmierte Gleitringdichtung
DE19726955A1 (de) * 1997-06-25 1999-01-07 Burgmann Dichtungswerk Feodor Gleitringdichtung für Kurbelwelle
US5934683A (en) * 1997-07-10 1999-08-10 Roy E. Roth Company Rotary seal assembly having grooved seal facing
GB9718846D0 (en) * 1997-09-06 1997-11-12 Crane John Uk Ltd Mechanical face seals
DE69821320T2 (de) * 1997-11-25 2004-12-09 Camco International (Uk) Ltd., Monkstown Vorgespannte Schleifringdichtung
US6155572A (en) * 1997-12-17 2000-12-05 A.W. Chesterton Company Non-contacting mechanical face seal including fluid control system
US6142478A (en) * 1998-02-06 2000-11-07 John Crane Inc. Gas lubricated slow speed seal
US6267382B1 (en) * 1998-02-23 2001-07-31 Dresser-Rand Company Fail safe L-shaped spring carrier for gas seals
US6109617A (en) * 1998-03-04 2000-08-29 Power Packing Co., Inc. Gas seal assembly and method of sealing
JP3650954B2 (ja) * 1998-09-18 2005-05-25 イーグル工業株式会社 高速用非接触型メカニカルシール
EP1031775A1 (de) * 1999-02-25 2000-08-30 Dresser Rand S.A Wellendichtung
DE29908918U1 (de) * 1999-05-20 1999-07-29 Feodor Burgmann Dichtungswerke GmbH & Co, 82515 Wolfratshausen Gleitringdichtungsanordnung
DE20019881U1 (de) * 2000-11-23 2001-04-12 Burgmann Dichtungswerke Gmbh Gleitringdichtungsanordnung für hohe Drehgeschwindigkeiten
US6494458B2 (en) 2000-12-19 2002-12-17 Karl E. Uth Rotary sealing assembly
CN2460801Y (zh) 2001-01-18 2001-11-21 王玉明 可双向旋转的螺旋槽端面密封装置
US6655693B2 (en) 2001-04-26 2003-12-02 John Crane Inc. Non-contacting gas compressor seal
GB2375148A (en) * 2001-04-30 2002-11-06 Corac Group Plc A dry gas seal
DE20110824U1 (de) * 2001-06-29 2001-10-11 Burgmann Dichtungswerke Gmbh Gleitringdichtungsanordnung
JP3933469B2 (ja) * 2001-12-28 2007-06-20 イーグル工業株式会社 メカニカルシール装置
GB0202468D0 (en) * 2002-02-02 2002-03-20 Crane John Uk Ltd Seals
US7377518B2 (en) 2004-05-28 2008-05-27 John Crane Inc. Mechanical seal ring assembly with hydrodynamic pumping mechanism
GB0412612D0 (en) * 2004-06-07 2004-07-07 Aesseal Plc Mechanical seal with floating face
US7293778B1 (en) * 2004-07-15 2007-11-13 Rode John E Systems and methods for sealing between stators and rotors
US20060207834A1 (en) * 2005-03-03 2006-09-21 Honeywell International, Inc. Aircraft engine accessory drive air film riding bulkhead seal
DE202005011137U1 (de) * 2005-07-14 2005-09-29 Burgmann Industries Gmbh & Co. Kg Gleitringdichtungsanordnung
US20080003099A1 (en) * 2006-06-30 2008-01-03 Honeywell International, Inc. Closed bias air film riding seal in event of housing breach for shared engine lubrication accessory gearboxes
DE102006053165A1 (de) * 2006-11-09 2008-05-15 Carl Freudenberg Kg Gleitringdichtung, Gleitringdichtungsanordnung und deren Verwendung
US8114024B2 (en) * 2007-08-20 2012-02-14 Interson Corporation Seal for a rotating shaft
US8181966B2 (en) 2009-01-12 2012-05-22 Kaydon Ring & Seal, Inc. Gas seal for aerospace engines and the like
DE102009005386A1 (de) * 2009-01-21 2010-07-22 Bosch Mahle Turbo Systems Gmbh & Co. Kg Ladeeinrichtung für eine Brennkraftmaschine
CN102011868A (zh) * 2010-11-12 2011-04-13 昆明嘉和科技股份有限公司 一种具有自循环作用的无水机械密封
CN102913621B (zh) * 2011-08-05 2015-11-25 哈米尔顿森德斯特兰德公司 碳密封件o型环腔尺寸设置
US9964216B2 (en) * 2012-05-21 2018-05-08 Eagle Industry Co., Ltd. Sliding component
US9255642B2 (en) 2012-07-06 2016-02-09 General Electric Company Aerodynamic seals for rotary machine
FR3000167B1 (fr) * 2012-12-20 2015-08-21 Cryostar Sas Ensemble joint d'etancheite a gaz pour pompes a liquide cryogenique
CN103133696A (zh) * 2013-02-22 2013-06-05 江苏大学 一种自动排泄颗粒型流体动压机械密封环
US11333197B2 (en) 2013-04-15 2022-05-17 Stein Seal Company Circumferential seal assembly with multi-axis stepped grooves
US10948014B2 (en) 2013-04-15 2021-03-16 Stein Seal Company Intershaft seal assembly with multi-axis stepped grooves
CN103267132B (zh) * 2013-05-28 2015-08-05 南京林业大学 自泵送流体动压型机械密封
CN103486268B (zh) * 2013-09-15 2015-12-30 丹东克隆集团有限责任公司 泵用干气机械密封装置
US9534502B2 (en) 2014-03-26 2017-01-03 General Electric Company Individually compliant segments for split ring hydrodynamic face seal
US9611749B2 (en) 2014-03-26 2017-04-04 General Electric Company Face seal with locally compliant hydrodynamic pads
WO2016118140A1 (en) * 2015-01-22 2016-07-28 Schlumberger Canada Limited Mechanical face seal with adaptable seat for electric submersible pump components
RU2595315C1 (ru) * 2015-04-30 2016-08-27 федеральное государственное автономное образовательное учреждение высшего образования "Самарский государственный аэрокосмический университет имени академика С.П. Королева (национальный исследовательский университет)" (СГАУ) Торцовое газодинамическое уплотнение опоры ротора турбомашины
CN105465371A (zh) * 2015-12-30 2016-04-06 南京林业大学 双向旋转自泵送流体动压型机械密封
CN105864043B (zh) * 2016-06-02 2018-06-19 徐华岳 真空机械密封机构
US11796064B2 (en) 2016-06-10 2023-10-24 John Crane Uk Limited Reduced emission gas seal
CN109563933B (zh) 2016-06-10 2021-02-26 约翰起重机英国有限公司 减少排放气体密封件
WO2017214542A1 (en) 2016-06-10 2017-12-14 John Crane Uk Ltd. Dry gas seal with electronically controlled shutdown valve
US10626743B2 (en) 2016-06-30 2020-04-21 General Electric Company Segmented face seal assembly and an associated method thereof
US10415707B2 (en) 2016-06-30 2019-09-17 General Electric Company Face seal assembly and an associated method thereof
RU2650451C2 (ru) * 2016-09-13 2018-04-13 Акционерное общество "Опытное Конструкторское Бюро Машиностроения имени И.И. Африкантова" (АО "ОКБМ Африкантов") Торцовое уплотнение
US10494941B2 (en) * 2016-10-17 2019-12-03 United Technologies Corporation Seal face plate cooling
IT201700029982A1 (it) * 2017-03-17 2018-09-17 Nuovo Pignone Tecnologie Srl Tenuta a gas
CN110603395B (zh) * 2017-05-12 2021-04-30 伊格尔工业股份有限公司 机械密封
AU2018270137B2 (en) 2017-05-15 2024-03-28 John Crane Uk Ltd. Dry gas seal with electronically controlled carrier load
CN108105391B (zh) * 2017-11-22 2020-09-11 成都一通密封股份有限公司 一种具有三维立体单向螺旋槽的干气密封结构
ES2970617T3 (es) * 2018-04-12 2024-05-29 Vestas Wind Sys As Componente de tren de transmisión de turbina eólica con sello de árbol radial de baja fricción
DE102020127710A1 (de) * 2020-10-21 2022-04-21 Rolls-Royce Deutschland Ltd & Co Kg Vorrichtung mit wenigstens zwei Bauteilen und Gasturbinentriebwerk mit einer solchen Vorrichtung
US11459956B2 (en) 2020-11-25 2022-10-04 Raytheon Technologies Corporation Face seal arrangement with reduced balance ratio

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB827015A (en) * 1957-02-04 1960-01-27 Atomic Energy Authority Uk Improvements in or relating to shaft seals
US3184244A (en) * 1961-07-20 1965-05-18 Chesterton A W Co Shaft seal
FR1505487A (fr) * 1966-10-28 1967-12-15 Guinard Pompes Perfectionnement aux joints tournants à régulation de fuite
US3499653A (en) * 1968-06-05 1970-03-10 Crane Packing Co Rotary mechanical seal of the gap type
DE1814501A1 (de) * 1968-12-13 1970-07-23 Krupp Gmbh Dichtungskonstruktion
CA919210A (en) * 1968-12-30 1973-01-16 Westinghouse Electric Corporation Controlled leakage face type shaft seal
US3751045A (en) * 1970-03-19 1973-08-07 Ingersoll Rand Co Fluid seal
US3704019A (en) * 1970-06-19 1972-11-28 Gen Electric Spiral groove face seals
US3782737A (en) * 1970-07-13 1974-01-01 Nasa Spiral groove seal
US3776560A (en) * 1971-03-04 1973-12-04 Borg Warner Bellows type fluid seal
US3894741A (en) * 1971-04-08 1975-07-15 Gen Electric Self-pressurizing seal for rotary shafts
US3804424A (en) * 1972-04-24 1974-04-16 Crane Packing Co Gap seal with thermal and pressure distortion compensation
JPS4933614A (de) * 1972-07-24 1974-03-28
DE2444544C2 (de) * 1974-09-18 1982-08-05 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Gasgesperrte Wellendichtung
US4099729A (en) * 1975-06-18 1978-07-11 Danfoss A/S Stuffing box backstop ring
AR207934A1 (es) * 1975-09-22 1976-11-08 Borg Warner Conjunto de cierre mecanico
DE2655744A1 (de) * 1976-02-19 1977-08-25 Sulzer Ag Beruehrungslose dichtung

Also Published As

Publication number Publication date
US4212475A (en) 1980-07-15
AU524129B2 (en) 1982-09-02
MX152140A (es) 1985-05-31
JPS55100471A (en) 1980-07-31
EP0013678A1 (de) 1980-08-06
EP0013678B1 (de) 1982-08-04
ATE1433T1 (de) 1982-08-15
JPH0122509B2 (de) 1989-04-26
CA1124759A (en) 1982-06-01

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: JOHN CRANE INC., MORTON GROVE, ILL., US

8339 Ceased/non-payment of the annual fee