US5136820A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polishing method
Assignee: Corning Research and Development Corp
•
Filing: 1991-05-30
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Granted: 1992-08-11
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Expires: 2011-05-30
Abstract
Abstract A method for polishing optical connectors provides for polishing a connector ferrule on a napless nylon cloth having a four shaft satin weave, 70 denier, 90×120 count. An aqueous slurry of silicon dioxide particles is used when polishing takes place.
Inventors
- 👤 James P. Luther
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:47
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/22; B24B19/226; G; G02; G02B; G02B6/00; G02B6/24; G02B6/25
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
68 words
A method for polishing an optical connector comprising an optical waveguide housed in a ceramic ferrule comprises polishing the optical waveguide housed in a ceramic ferrule on a woven nylon cloth using an aqueous slurry of silicon dioxide particles wherein the ceramic ferrule is removed at a rate faster than the optical waveguide removal rate, so that the waveguide protrudes from the ferrule upon completion of the polishing.
Claim 2
Independent Claim
68 words
A method for polishing an optical connector comprising an optical waveguide housed in a ceramic ferrule comprises polishing the optical waveguide housed in a ceramic ferrule on a woven nylon cloth using an aqueous slurry of silicon dioxide particles wherein the ceramic ferrule is removed at a rate faster than the optical waveguide removal rate, so that the waveguide protrudes from the ferrule upon completion of the polishing.
Claim 3
Dependent Claim
21 words
The method of claim 1 using an aqueous slurry of silicon dioxide particles having an average diameter not exceeding 0.014 micrometers.
Claim 4
Dependent Claim
22 words
The method of claim 2 wherein the optical connector is polished using a pressure of thirty to sixty pounds per square inch.
Claim 5
Dependent Claim
21 words
The method of claim 1 wherein the nylon cloth is a four shaft satin weave, 70 denier, 90×120 count, napless cloth.
Claim 6
Dependent Claim
22 words
The method of claim 4 wherein the optical connector is polished using a pressure of thirty to sixty pounds per square inch.
Claim 7
Dependent Claim
21 words
The method of claim 4 using an aqueous slurry of silicon dioxide particles having an average diameter not exceeding 0.014 micrometers.
Claim 8
Dependent Claim
22 words
The method of claim 6, wherein the optical connector is polished using a pressure of thirty to sixty pounds per square inch.
Claim 9
Dependent Claim
22 words
The method of claim 1 wherein the optical connector is polished using a pressure of thirty to sixty pounds per square inch.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-11 | 1996-02-10 | 1996-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-11 | 2000-02-10 | 2000-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-11 | 2004-02-10 | 2004-08-11 | $7700.00 | Window Closed / Lapsed |