EP0231397A4 - Grinder for core of optical connector and core grinding method. - Google Patents

Grinder for core of optical connector and core grinding method.

Info

Publication number
EP0231397A4
EP0231397A4 EP19860904925 EP86904925A EP0231397A4 EP 0231397 A4 EP0231397 A4 EP 0231397A4 EP 19860904925 EP19860904925 EP 19860904925 EP 86904925 A EP86904925 A EP 86904925A EP 0231397 A4 EP0231397 A4 EP 0231397A4
Authority
EP
European Patent Office
Prior art keywords
core
grinder
optical connector
grinding method
core grinding
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.)
Granted
Application number
EP19860904925
Other languages
German (de)
French (fr)
Other versions
EP0231397A1 (en
EP0231397B1 (en
Inventor
Toshihiro Ochiai
Akihiro Odake
Izumi Sankawa
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.)
Furukawa Electric Co Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Furukawa Electric Co Ltd
Nippon Telegraph and Telephone 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 Furukawa Electric Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Furukawa Electric Co Ltd
Publication of EP0231397A1 publication Critical patent/EP0231397A1/en
Publication of EP0231397A4 publication Critical patent/EP0231397A4/en
Application granted granted Critical
Publication of EP0231397B1 publication Critical patent/EP0231397B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/22Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B19/226Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground of the ends of optical fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B11/00Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10Single-purpose machines or devices
    • B24B7/16Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP86904925A 1985-08-07 1986-08-07 Grinder for core of optical connector and core grinding method Expired - Lifetime EP0231397B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP60173476A JPS6234762A (en) 1985-08-07 1985-08-07 Polishing machine for convex endface of optical connector core
JP173476/85 1985-08-07

Publications (3)

Publication Number Publication Date
EP0231397A1 EP0231397A1 (en) 1987-08-12
EP0231397A4 true EP0231397A4 (en) 1989-03-13
EP0231397B1 EP0231397B1 (en) 1992-03-04

Family

ID=15961193

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86904925A Expired - Lifetime EP0231397B1 (en) 1985-08-07 1986-08-07 Grinder for core of optical connector and core grinding method

Country Status (8)

Country Link
EP (1) EP0231397B1 (en)
JP (1) JPS6234762A (en)
KR (1) KR930007108B1 (en)
AU (1) AU6200086A (en)
CA (1) CA1322457C (en)
DE (1) DE3684135D1 (en)
NZ (1) NZ217135A (en)
WO (1) WO1987000785A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2566757B2 (en) * 1986-05-19 1996-12-25 ヤマハ発動機株式会社 Fuel cell
JPS63278759A (en) * 1987-05-08 1988-11-16 Toyo Shinku Kako Kk Polishing device for curved surface of cylindrical member
JPS63300852A (en) * 1987-05-29 1988-12-08 Seiko Giken:Kk Polisher for edge surface of optical fiber
JPH01183355A (en) * 1988-01-14 1989-07-21 Sankyo Seiki Mfg Co Ltd Optical fiber connector polishing device
US5107627A (en) * 1990-09-04 1992-04-28 At&T Bell Laboratories Methods of and apparatus for polishing an article
US5185966A (en) * 1990-09-04 1993-02-16 At&T Bell Laboratories Methods of and apparatus for polishing an article
JP3116124B2 (en) * 1991-08-23 2000-12-11 東京特殊電線株式会社 Optical fiber connector
JPH05157940A (en) * 1991-12-06 1993-06-25 Fujikura Ltd Automatically polishing machine for optical connector
JPH0727754U (en) * 1993-10-22 1995-05-23 鐘紡株式会社 Equipment for polishing
CN106470800B (en) * 2014-07-07 2019-06-18 阪东化学株式会社 Grinding film
US10866368B2 (en) * 2018-08-31 2020-12-15 Corning Incorporated Apparatus for processing a ferrule and associated method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56139872A (en) * 1980-04-03 1981-10-31 Nippon Telegr & Teleph Corp <Ntt> Machining method of semispherical face
DE3346916A1 (en) * 1983-12-24 1985-07-04 Elbel-Raberain, Anne-Marie, 7530 Pforzheim METHOD FOR PRODUCING ELASTIC GRINDING BODIES

Also Published As

Publication number Publication date
WO1987000785A1 (en) 1987-02-12
KR930007108B1 (en) 1993-07-30
EP0231397A1 (en) 1987-08-12
CA1322457C (en) 1993-09-28
NZ217135A (en) 1989-01-06
DE3684135D1 (en) 1992-04-09
JPS6234762A (en) 1987-02-14
KR870700454A (en) 1987-12-29
EP0231397B1 (en) 1992-03-04
AU6200086A (en) 1987-03-05

Similar Documents

Publication Publication Date Title
DE3374350D1 (en) Method and apparatus for polishing an end face of an optical fiber
KR920009813B1 (en) Machine and method of grinding
GB2163076B (en) Lapping and polishing optical surfaces
GB8522022D0 (en) End face grinding apparatus
DK169490A (en) Method of tinting contact lenses
GB8315229D0 (en) Grinding and polishing apparatus
AU578872B2 (en) Interface apparatus and method
DE3461996D1 (en) Grinding wheel and manufacturing method thereof
AU5993786A (en) Method of diamond identification
AU574940B2 (en) Compressing and grinding apparatus
GB2149417B (en) Method of making grinding stones
EP0231397A4 (en) Grinder for core of optical connector and core grinding method.
DE3662235D1 (en) Method of and apparatus for comminuting grinding matter
HK9192A (en) Method and apparatus for cleaving optical fiber
EP0178390A3 (en) Method for coupling optical members and arrangement for carrying out the method
GB2193455B (en) Method of grinding arcuate surfaces of workpieces
GB8713205D0 (en) Grinding method
GB2119298B (en) Method of abrading surfaces
GB8522197D0 (en) Grinding &amp; reconditioning plane annular surfaces
EP0484318A3 (en) Polishing method
GB2185202B (en) Glassware grinding and/or polishing apparatus
GB2184376B (en) Optical fibre grinder
GB8419940D0 (en) Lens grinding method
GB8529657D0 (en) High-speed grinding method
DE3664007D1 (en) Method for tinting optical parts

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19870729

A4 Supplementary search report drawn up and despatched

Effective date: 19890313

17Q First examination report despatched

Effective date: 19901106

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT

REF Corresponds to:

Ref document number: 3684135

Country of ref document: DE

Date of ref document: 19920409

ITF It: translation for a ep patent filed
ET Fr: translation filed
RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: NIPPON TELEGRAPH AND TELEPHONE CORPORATION

Owner name: THE FURUKAWA ELECTRIC CO., LTD.

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19980730

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19980814

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19980817

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990807

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19990807

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000428

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000601

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050807