IT990692B - Dispositivo per prevenire la conta minazione di elementi girevoli particolarmente utile in apparec chiature di stampa elettrostato grafica - Google Patents

Dispositivo per prevenire la conta minazione di elementi girevoli particolarmente utile in apparec chiature di stampa elettrostato grafica

Info

Publication number
IT990692B
IT990692B IT25877/73A IT2587773A IT990692B IT 990692 B IT990692 B IT 990692B IT 25877/73 A IT25877/73 A IT 25877/73A IT 2587773 A IT2587773 A IT 2587773A IT 990692 B IT990692 B IT 990692B
Authority
IT
Italy
Prior art keywords
electrostate
graphics
counting
prevent
particularly useful
Prior art date
Application number
IT25877/73A
Other languages
English (en)
Italian (it)
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
Application granted granted Critical
Publication of IT990692B publication Critical patent/IT990692B/it

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)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)
  • Sealing Of Bearings (AREA)
IT25877/73A 1972-06-28 1973-06-26 Dispositivo per prevenire la conta minazione di elementi girevoli particolarmente utile in apparec chiature di stampa elettrostato grafica IT990692B (it)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT990692B true IT990692B (it) 1975-07-10

Family

ID=23016475

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25877/73A IT990692B (it) 1972-06-28 1973-06-26 Dispositivo per prevenire la conta minazione di elementi girevoli particolarmente utile in apparec chiature di stampa elettrostato grafica

Country Status (9)

Country Link
US (1) US3788275A (de)
JP (1) JPS5632628B2 (de)
BE (1) BE801242A (de)
CA (1) CA973703A (de)
DE (1) DE2255978A1 (de)
FR (1) FR2191166B1 (de)
GB (2) GB1438331A (de)
IT (1) IT990692B (de)
NL (1) NL7308988A (de)

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
US4041903A (en) * 1974-05-21 1977-08-16 Konishiroku Photo Industry Co., Ltd. Developing device for use in electrophotography
JPS50149350A (de) * 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 (de) * 1980-02-26 1988-04-08
JPS6237241Y2 (de) * 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
JPS6054149U (ja) * 1983-09-20 1985-04-16 株式会社東芝 現像装置
EP0328737B1 (de) * 1988-02-17 1992-03-18 Firma Carl Freudenberg Dichtung
US4843421A (en) * 1988-06-24 1989-06-27 Xerox Corporation System for priming the magnetic brush end seals of copier/printer machines
EP0608968B1 (de) * 1989-03-31 1998-05-27 Canon Kabushiki Kaisha 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
US5450169A (en) * 1994-06-23 1995-09-12 Xerox Corporation Multi-lobe magnetic seals
US5442423A (en) * 1994-06-23 1995-08-15 Xerox Corporation External development housing bearings
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
US11095184B2 (en) 2016-08-23 2021-08-17 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

Also Published As

Publication number Publication date
NL7308988A (de) 1974-01-02
BE801242A (fr) 1973-12-21
JPS5632628B2 (de) 1981-07-29
JPS4953444A (de) 1974-05-24
DE2255978A1 (de) 1974-01-10
GB1438331A (en) 1976-06-03
FR2191166A1 (de) 1974-02-01
US3788275A (en) 1974-01-29
CA973703A (en) 1975-09-02
GB1438332A (en) 1976-06-03
FR2191166B1 (de) 1977-05-13

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