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US5640475A Expired / Lapsed US ⏱️ 0.0 years remaining

Optical fiber ferrule holding plate for optical fiber end polishing apparatus

Assignee: Seikoh Giken Co Ltd
•
Filing: 1995-09-27
•
Granted: 1997-06-17
•
Expires: 2015-09-27
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Abstract

Abstract An optical fiber ferrule holding plate for an optical fiber end polishing apparatus for simultaneously polishing the end surfaces of a plurality of ferrules with optical fibers has an improved durability and workability. The optical fiber ferrule holding plate includes a ferrule outer periphery supporting member which is made of a hard burned ceramic member, and which includes, at the center thereof, an inserting hole for receiving the end outer periphery of the ferrule with an optical fiber and which receives and supports a plurality of ferrules with optical fibers. A holding plate main unit which has a plurality of through holes for receiving a plurality of ferrule outer periphery supporting members is provided, which receives, fixes, and supports the ferrules with optical fibers in the through holes. A device is provided for detachably holding the ends of the ferrules with optical fibers, which have been inserted in the members for supporting the outer peripheries of the ferrules with optical fibers, toward a polishing board.

Inventors

  • 👤 Mitsuo Takahashi

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 13:23
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/22; B24B19/226

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 117 words
An apparatus for simultaneously polishing, using a polishing board, the end surfaces of a plurality of ferrules each retaining an optical fiber, comprising: a holder plate having a plurality of through holes; a plurality of supporting members, each being fixed and secured in a respective through hole and supported by said holder plate, each supporting member being comprised of a hard burned ceramic material and having a through hole at a center thereof for receiving an end of a respective ferrule so as to support the ferrule at an outer periphery thereof; and means for detachably holding the ferrules within the respective supporting members, and for directing the ends of the respective ferrules toward the polishing board.
Claim 2
Independent Claim 117 words
An apparatus for simultaneously polishing, using a polishing board, the end surfaces of a plurality of ferrules each retaining an optical fiber, comprising: a holder plate having a plurality of through holes; a plurality of supporting members, each being fixed and secured in a respective through hole and supported by said holder plate, each supporting member being comprised of a hard burned ceramic material and having a through hole at a center thereof for receiving an end of a respective ferrule so as to support the ferrule at an outer periphery thereof; and means for detachably holding the ferrules within the respective supporting members, and for directing the ends of the respective ferrules toward the polishing board.
Claim 3
Dependent Claim 28 words
The apparatus defined in claim 1, wherein the through holes within said holder plate are arranged at a right angle relative to a surface of the polishing board.
Claim 4
Dependent Claim 28 words
The apparatus defined in claim 1, wherein the through holes within said holder plate are arranged at an arbitrary angle relative to a surface of the polishing board.
Claim 5
Dependent Claim 46 words
The apparatus defined in claim 1, wherein said means for detachably holding the ferrules comprises a shaft connected to said holder plate, a ferrule holding plate rotatably mounted to said shaft, and a spring urging said ferrule holding plate in a direction toward the polishing board.
Claim 6
Dependent Claim 47 words
The apparatus defined in claim 1, further comprising a plurality of mounting plates integrally fixed to said holder plate at an arbitrary angle, each being located within a respective through hole of said holder plate, and each having a through hole for receiving a respective supporting member.
Claim 7
Dependent Claim 29 words
The apparatus defined in claim 5, wherein each of said mounting plates includes a threaded section for receiving a respective nut, and wherein said means comprises said threaded section.
Claim 8
Dependent Claim 20 words
The apparatus defined in claim 1, wherein the hard burned ceramic material has a Vickers hardness of at least 1000.

References Cited (Backward Citations)

GB2182272A Cited
US4979334A Cited
US5216846A Cited
EP0579056A1 Cited
US5503590A Cited
US5412747A Cited
US5461689A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 2000-06-16 2000-12-16 2001-06-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2004-06-16 2004-12-16 2005-06-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2008-06-16 2008-12-16 2009-06-17 $7700.00 Window Closed / Lapsed

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