ZA9202945B - Magnetic seal - Google Patents

Magnetic seal


Publication number
ZA9202945B ZA9202945A ZA9202945A ZA9202945B ZA 9202945 B ZA9202945 B ZA 9202945B ZA 9202945 A ZA9202945 A ZA 9202945A ZA 9202945 A ZA9202945 A ZA 9202945A ZA 9202945 B ZA9202945 B ZA 9202945B
South Africa
Prior art keywords
magnetic seal
Prior art date
Application number
David C Orlowski
Heinz P Bloch
Original Assignee
Inpro Co 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
Priority to US07/727,098 priority Critical patent/US5161804A/en
Application filed by Inpro Co Inc filed Critical Inpro Co Inc
Publication of ZA9202945B publication Critical patent/ZA9202945B/en



    • F16J15/00Sealings
    • F16J15/16Sealings between relatively-moving surfaces
    • F16J15/34Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/3436Pressing means
    • F16J15/3444Pressing means by magnetic attraction
ZA9202945A 1991-07-09 1992-04-23 Magnetic seal ZA9202945B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US07/727,098 US5161804A (en) 1991-07-09 1991-07-09 Magnetic seal

Publications (1)

Publication Number Publication Date
ZA9202945B true ZA9202945B (en) 1993-10-25



Family Applications (1)

Application Number Title Priority Date Filing Date
ZA9202945A ZA9202945B (en) 1991-07-09 1992-04-23 Magnetic seal

Country Status (12)

Country Link
US (1) US5161804A (en)
EP (1) EP0522682B1 (en)
JP (1) JP3448072B2 (en)
AU (1) AU648658B2 (en)
BR (1) BR9201635A (en)
CA (1) CA2065495C (en)
DE (2) DE69213365D1 (en)
ES (1) ES2092030T3 (en)
FI (1) FI100124B (en)
MX (1) MX9202176A (en)
NO (1) NO179923C (en)
ZA (1) ZA9202945B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06337072A (en) * 1993-05-28 1994-12-06 Toyoda Gosei Co Ltd Mechanical seal for liquid pressure pump
CA2167424C (en) * 1995-02-02 2002-02-19 David C. Orlowski Emission seal
CN1059262C (en) * 1997-12-05 2000-12-06 中国矿业大学 A magnetic fluid seal device
GB2336408B (en) * 1998-04-17 2002-07-24 Rolls Royce Plc A seal arrangement
US6142477A (en) * 1998-11-16 2000-11-07 United Technologies Corporation Active seal
GB2368100B (en) * 2000-10-19 2004-02-18 Rolls Royce Plc Seal fitting
US6805358B2 (en) * 2001-08-16 2004-10-19 Isomag Corporation Magnetic seal
US6592127B1 (en) * 2002-01-23 2003-07-15 Phlaver Inc. Air purged shaft seal assembly
WO2004005770A2 (en) * 2002-07-08 2004-01-15 Aes Engineering Limited Rotary seal
AU2003279040B2 (en) * 2002-09-30 2009-04-23 Garlock Sealing Technologies Llc Unitizing element and method for assembling a seal
US7604239B2 (en) * 2002-09-30 2009-10-20 Garlock Scaling Technologies LLC Split bearing isolator and a method for assembling seal
US20040227299A1 (en) * 2003-05-12 2004-11-18 Brian Simmons Magnetic bearing isolator
DE102004062445A1 (en) * 2004-12-17 2006-06-22 Kaco Gmbh + Co. Kg Sliding ring seal for motor vehicle coolant pump has sliding ring and counter ring, whereby seal is formed between both rings by magnetic attraction and seals which have different sliding partners are made of magnets
US8201830B2 (en) * 2005-10-31 2012-06-19 Petróleo Brasileiro S.A.—Petrobras Airtight magnetic seal for bearing casings
US8038155B2 (en) * 2006-07-10 2011-10-18 Eaton Corporation Magnetically-controlled rotary seal
WO2009137746A1 (en) * 2008-05-08 2009-11-12 Parker-Hannifin Corporation Bearing isolating seal
US20100006788A1 (en) * 2008-07-09 2010-01-14 Honeywell International Inc. Valve assembly having magnetically-energized seal mechanism
US7857320B1 (en) 2009-06-03 2010-12-28 Chang Ming S Bearing isolator seal with floating ring
WO2011060154A2 (en) * 2009-11-11 2011-05-19 Garlock Sealing Technologies, Llc Flooded bearing isolator
WO2013126229A2 (en) 2012-02-10 2013-08-29 Orion Engineered Seals, Llc Labyrinth seal
CN103791111A (en) * 2012-10-31 2014-05-14 浙江三花股份有限公司 Flow adjusting valve
US10107121B2 (en) * 2012-12-05 2018-10-23 Pratt & Whitney Canada Corp. Carbon seal assembly
CN103423456A (en) * 2013-08-27 2013-12-04 刘讯岐 Tight positioning magnetic mechanical sealing element
JP6483125B2 (en) * 2013-12-02 2019-03-13 ブルクハルト コンプレッション アーゲー Seal assembly and method of operation thereof
BR112017022799A2 (en) 2015-04-21 2018-07-10 Inpro/Seal Llc shaft seal assembly
US9771821B1 (en) * 2015-06-15 2017-09-26 Florida Turbine Technologies, Inc. Turbine interstage seal with self-balancing capability
TWI625482B (en) 2015-06-18 2018-06-01 益保密封有限責任公司 Shaft seal assembly and a usage method thereof

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2843403A (en) * 1955-01-11 1958-07-15 Magnetic Seal Corp Rotary seal
US3050319A (en) * 1956-05-22 1962-08-21 Magnetic Seal Corp Radially contacting seal with balancing sleeve
US3170409A (en) * 1963-04-01 1965-02-23 Dura Corp Rotor pump seal
US3550989A (en) * 1968-04-15 1970-12-29 Sybron Corp Wear resistant articles and facings therefor
GB1256549A (en) * 1969-12-01 1971-12-08
US3708177A (en) * 1970-06-17 1973-01-02 M Baermann Magnetic seal for a rotary shaft and magnet therefor
DE2315190B2 (en) * 1973-03-27 1978-04-20 Klein, Schanzlin & Becker Ag, 6710 Frankenthal
FR2514455B1 (en) * 1981-10-09 1985-04-26 Hotchkiss Brandt Sogeme
US4486026A (en) * 1982-02-10 1984-12-04 Nippon Seiko K.K. Sealing and bearing means by use of ferrofluid
EP0096233B1 (en) * 1982-06-05 1986-12-30 Man Gutehoffnungshütte Gmbh Shaft seal with a magnetically adjusted sealing clearance
EP0105616A3 (en) * 1982-09-03 1984-09-26 Cannings, John Arthur Magnetic rotary seal
US4605234A (en) * 1985-12-16 1986-08-12 Metcalf Maurice E Mechanical seal assembly with orientation maintaining means
US4795168A (en) * 1987-09-10 1989-01-03 Durametallic Corporation Magnetic seal assembly
DE3820581C2 (en) * 1988-06-16 1992-09-10 Feodor Burgmann Dichtungswerke Gmbh & Co, 8190 Wolfratshausen, De
DE3918842A1 (en) * 1989-06-09 1990-12-13 Windhorst Beteiligungsgesellsc Magnetic sealing for rotating machinery - uses ferromagnetic suspension in groove with permanent magnet gasket

Also Published As

Publication number Publication date
JPH05133478A (en) 1993-05-28
NO179923B (en) 1996-09-30
NO921645D0 (en) 1992-04-28
CA2065495C (en) 1995-05-02
DE69213365D1 (en) 1996-10-10
BR9201635A (en) 1993-03-16
FI921953A0 (en) 1992-04-30
ES2092030T3 (en) 1996-11-16
FI921953A (en) 1993-01-10
EP0522682B1 (en) 1996-09-04
EP0522682A1 (en) 1993-01-13
FI921953D0 (en)
NO921645L (en) 1993-01-11
MX9202176A (en) 1993-01-01
FI100124B1 (en)
AU648658B2 (en) 1994-04-28
JP3448072B2 (en) 2003-09-16
FI100124B (en) 1997-09-30
DE69213365T2 (en) 1997-02-27
NO179923C (en) 1997-01-08
US5161804A (en) 1992-11-10
AU1496592A (en) 1993-01-21

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