DE2255978A1 - Magnetische schirmvorrichtung - Google Patents

Magnetische schirmvorrichtung

Info

Publication number
DE2255978A1
DE2255978A1 DE2255978A DE2255978A DE2255978A1 DE 2255978 A1 DE2255978 A1 DE 2255978A1 DE 2255978 A DE2255978 A DE 2255978A DE 2255978 A DE2255978 A DE 2255978A DE 2255978 A1 DE2255978 A1 DE 2255978A1
Authority
DE
Germany
Prior art keywords
hub
granules
magnetic
shaft
bearings
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.)
Pending
Application number
DE2255978A
Other languages
German (de)
English (en)
Inventor
William John Hanson
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.)
Xerox Corp
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of DE2255978A1 publication Critical patent/DE2255978A1/de
Pending 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
    • F16J15/40—Sealings between relatively-moving surfaces by means of fluid
    • F16J15/43—Sealings between relatively-moving surfaces by means of fluid kept in sealing position by magnetic force
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/72—Sealings
    • F16C33/76—Sealings of ball or roller bearings
    • F16C33/82—Arrangements for electrostatic or magnetic action against dust or other particles
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/09—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush
    • G03G15/0942—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer using magnetic brush with means for preventing toner scattering from the magnetic brush, e.g. magnetic seals

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
  • Sealing Devices (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Sealing Of Bearings (AREA)
DE2255978A 1972-06-28 1972-11-15 Magnetische schirmvorrichtung Pending DE2255978A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26690572A 1972-06-28 1972-06-28

Publications (1)

Publication Number Publication Date
DE2255978A1 true DE2255978A1 (de) 1974-01-10

Family

ID=23016475

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2255978A Pending DE2255978A1 (de) 1972-06-28 1972-11-15 Magnetische schirmvorrichtung

Country Status (9)

Country Link
US (1) US3788275A (US07223432-20070529-C00017.png)
JP (1) JPS5632628B2 (US07223432-20070529-C00017.png)
BE (1) BE801242A (US07223432-20070529-C00017.png)
CA (1) CA973703A (US07223432-20070529-C00017.png)
DE (1) DE2255978A1 (US07223432-20070529-C00017.png)
FR (1) FR2191166B1 (US07223432-20070529-C00017.png)
GB (2) GB1438332A (US07223432-20070529-C00017.png)
IT (1) IT990692B (US07223432-20070529-C00017.png)
NL (1) NL7308988A (US07223432-20070529-C00017.png)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3434432A1 (de) * 1983-09-20 1985-04-11 Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa Entwicklungsvorrichtung
EP0348138A1 (en) * 1988-06-24 1989-12-27 Xerox Corporation System for priming the magnetic brush end seals of copier/printer machines

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991713A (en) * 1974-02-20 1976-11-16 Xerox Corporation Development apparatus for an electrostatographic printing machine
US4041903A (en) * 1974-05-21 1977-08-16 Konishiroku Photo Industry Co., Ltd. Developing device for use in electrophotography
JPS50149350A (US07223432-20070529-C00017.png) * 1974-05-21 1975-11-29
IT1003550B (it) * 1974-06-28 1976-06-10 Grafosol Spa Dispositivo di sostegno della matrice negli apparecchi a svi luppo elettrostatico
US3998184A (en) * 1975-03-20 1976-12-21 Xerox Corporation Development apparatus
JPS5815791B2 (ja) * 1975-04-07 1983-03-28 株式会社ケイアイピ− デンシフクシヤキニオケルゲンゾウソウチ
JPS5364525A (en) * 1976-11-22 1978-06-09 Fuji Xerox Co Ltd Magnetic brush developing device of electrostatic copying machine
JPS54103043A (en) * 1978-01-31 1979-08-14 Nippon Telegr & Teleph Corp <Ntt> Developer
JPS6312352Y2 (US07223432-20070529-C00017.png) * 1980-02-26 1988-04-08
JPS6237241Y2 (US07223432-20070529-C00017.png) * 1980-04-02 1987-09-22
JPS5829479Y2 (ja) * 1980-05-30 1983-06-28 東京航空計器株式会社 現像剤容器内回転体の軸受部の構造
GB2141049B (en) * 1983-06-08 1986-07-23 Xerox Corp Electrostatographic development apparatus
GB8315726D0 (en) * 1983-06-08 1983-07-13 Xerox Corp Electrostatographic development apparatus
ATE73915T1 (de) * 1988-02-17 1992-04-15 Freudenberg Carl Fa Dichtung.
DE69033384T2 (de) * 1989-03-31 2000-05-11 Canon Kk Entwicklungsgerät
JP2892456B2 (ja) * 1989-08-04 1999-05-17 キヤノン株式会社 現像装置
GB2244762B (en) * 1990-06-08 1994-06-08 Xerox Corp Bearing assembly for a rotatable member
JP2899079B2 (ja) * 1990-07-10 1999-06-02 キヤノン株式会社 現像装置
US5267003A (en) * 1992-08-11 1993-11-30 Olivetti Supplies, Inc. Toner cartridge refilling seal using magnetic material
US5315354A (en) * 1993-04-23 1994-05-24 Xerox Corporation Carrier bead seal
US5442423A (en) * 1994-06-23 1995-08-15 Xerox Corporation External development housing bearings
US5450169A (en) * 1994-06-23 1995-09-12 Xerox Corporation Multi-lobe magnetic seals
US5552864A (en) * 1995-01-17 1996-09-03 Xerox Corporation Magnetic seal with tapered shunts
US7156724B2 (en) * 2004-12-15 2007-01-02 Qed Technologies International, Inc. Method and apparatus for forming a dynamic magnetic seal using magnetorheological fluid
EP3504775A1 (en) 2016-08-23 2019-07-03 LORD Corporation Magnetic seal for magnetically-responsive devices, systems, and methods

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809733A (en) * 1952-10-29 1957-10-15 Texas Instruments Inc Magnetic fluid seals in magnetic clutches
US2863538A (en) * 1954-10-22 1958-12-09 Eaton Mfg Co Permanent magnet seal
US2944843A (en) * 1957-08-08 1960-07-12 Magnetic Seal Corp Spring loaded seal
US2996162A (en) * 1958-04-07 1961-08-15 Henry C Lehde Devices for excluding magnetic particles from seals and bearings
US3254745A (en) * 1963-01-21 1966-06-07 Isakov Vladimir Olimpijevich Seal to protect the bearings of powder magnetic clutches or of similar devices against the ferromagnetic powder
BE792643A (fr) * 1971-12-17 1973-03-30 Ibm Dispositif de developpement electrophotographique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3434432A1 (de) * 1983-09-20 1985-04-11 Kabushiki Kaisha Toshiba, Kawasaki, Kanagawa Entwicklungsvorrichtung
EP0348138A1 (en) * 1988-06-24 1989-12-27 Xerox Corporation System for priming the magnetic brush end seals of copier/printer machines

Also Published As

Publication number Publication date
JPS4953444A (US07223432-20070529-C00017.png) 1974-05-24
NL7308988A (US07223432-20070529-C00017.png) 1974-01-02
FR2191166B1 (US07223432-20070529-C00017.png) 1977-05-13
CA973703A (en) 1975-09-02
FR2191166A1 (US07223432-20070529-C00017.png) 1974-02-01
GB1438332A (en) 1976-06-03
US3788275A (en) 1974-01-29
JPS5632628B2 (US07223432-20070529-C00017.png) 1981-07-29
IT990692B (it) 1975-07-10
GB1438331A (en) 1976-06-03
BE801242A (fr) 1973-12-21

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