GB1438332A - Magnetic shielding apparatus - Google Patents

Magnetic shielding apparatus

Info

Publication number
GB1438332A
GB1438332A GB5272975A GB5272975A GB1438332A GB 1438332 A GB1438332 A GB 1438332A GB 5272975 A GB5272975 A GB 5272975A GB 5272975 A GB5272975 A GB 5272975A GB 1438332 A GB1438332 A GB 1438332A
Authority
GB
United Kingdom
Prior art keywords
bearing
magnetic shielding
shielding apparatus
june
magnetic
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
GB5272975A
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 GB1438332A publication Critical patent/GB1438332A/en
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
    • F16J15/40—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)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Sealing Devices (AREA)
  • Sealing Of Bearings (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

1438332 Protecting bearings; seals XEROX CORP 25 June 1973 [28 June 1972] 52729/75 Divided out of 1438331 Headings F2A and F2B A shaft and bearing means has magnetic means for producing a field to restrain magnetic particles from contaminating the bearing and a threaded surface for impelling particles away from the bearing. The apparatus is as described in Specification 1,438,331.
GB5272975A 1972-06-28 1973-06-25 Magnetic shielding apparatus Expired GB1438332A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1438332A true GB1438332A (en) 1976-06-03

Family

ID=23016475

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5272975A Expired GB1438332A (en) 1972-06-28 1973-06-25 Magnetic shielding apparatus
GB2997573A Expired GB1438331A (en) 1972-06-28 1973-06-25 Magnetic shielding apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB2997573A Expired GB1438331A (en) 1972-06-28 1973-06-25 Magnetic shielding apparatus

Country Status (9)

Country Link
US (1) US3788275A (en)
JP (1) JPS5632628B2 (en)
BE (1) BE801242A (en)
CA (1) CA973703A (en)
DE (1) DE2255978A1 (en)
FR (1) FR2191166B1 (en)
GB (2) GB1438332A (en)
IT (1) IT990692B (en)
NL (1) NL7308988A (en)

Families Citing this family (27)

* 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
JPS50149350A (en) * 1974-05-21 1975-11-29
US4041903A (en) * 1974-05-21 1977-08-16 Konishiroku Photo Industry Co., Ltd. Developing device for use in electrophotography
IT1003550B (en) * 1974-06-28 1976-06-10 Grafosol Spa DEVICE FOR SUPPORTING THE MATRIX IN ELECTROSTATIC DEVELOPING DEVICES
US3998184A (en) * 1975-03-20 1976-12-21 Xerox Corporation Development apparatus
JPS5815791B2 (en) * 1975-04-07 1983-03-28 株式会社ケイアイピ− Denshi Fukushi Yakinio Kergen Zosouchi
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 (en) * 1980-02-26 1988-04-08
JPS6237241Y2 (en) * 1980-04-02 1987-09-22
JPS5829479Y2 (en) * 1980-05-30 1983-06-28 東京航空計器株式会社 Structure of the bearing part of the rotating body in the developer container
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
JPS6054149U (en) * 1983-09-20 1985-04-16 株式会社東芝 developing device
DE3869387D1 (en) * 1988-02-17 1992-04-23 Freudenberg Carl Fa POETRY.
US4843421A (en) * 1988-06-24 1989-06-27 Xerox Corporation System for priming the magnetic brush end seals of copier/printer machines
EP0715227B1 (en) * 1989-03-31 1999-12-01 Canon Kabushiki Kaisha A developing apparatus
JP2892456B2 (en) * 1989-08-04 1999-05-17 キヤノン株式会社 Developing device
GB2244762B (en) * 1990-06-08 1994-06-08 Xerox Corp Bearing assembly for a rotatable member
JP2899079B2 (en) * 1990-07-10 1999-06-02 キヤノン株式会社 Developing device
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
CN109643930A (en) 2016-08-23 2019-04-16 洛德公司 Magnetic seal for magnetic response 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 (en) * 1971-12-17 1973-03-30 Ibm ELECTROPHOTOGRAPHIC DEVELOPMENT DEVICE

Also Published As

Publication number Publication date
BE801242A (en) 1973-12-21
CA973703A (en) 1975-09-02
DE2255978A1 (en) 1974-01-10
US3788275A (en) 1974-01-29
FR2191166A1 (en) 1974-02-01
NL7308988A (en) 1974-01-02
JPS5632628B2 (en) 1981-07-29
IT990692B (en) 1975-07-10
JPS4953444A (en) 1974-05-24
GB1438331A (en) 1976-06-03
FR2191166B1 (en) 1977-05-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee