US5206921A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for attaching ferrule to optical cable
Assignee: Hirose Electric Co Ltd
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Filing: 1992-05-21
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Granted: 1993-04-27
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Expires: 2012-05-21
Abstract
Abstract An apparatus for attaching an optical cable to a ferrule (F) which has a front aperture (F1) for holding an optical cable and a rear aperture (F2) for retaining an optical fiber of the optical cable, which includes a support block (1); a vertical passage (2) extending downwardly from an upper face of the support block; a sealing member (3) disposed around the vertical passage for making an airtight seal when a rear section of the ferrule is set in the vertical passage; a lateral passage (4) extending laterally from a side of the support block and communicating with the vertical passage; and a suction unit (5) connected to the lateral passage to draw a quantity of adhesive from the front aperture to the rear aperture, forming a mass of adhesive.
Inventors
- 👤 Kinjiro Okada
- 👤 Hiromasa Shiraishi
- 👤 Hirokazu Yokosawa
- 👤 Shinichi Takehana
- 👤 Norio Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:23
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3833; G02B6/3855; G02B6/3861; G02B6/3863
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
Apparatus for attaching an optical cable to a ferrule which has a front aperture for holding an optical cable and a rear aperture for retaining an optical fiber of said optical cable, comprising: a support block; a vertical passage extending downwardly from an upper face of said support block; sealing means disposed around said vertical passage for making an airtight seal when a rear section of said ferrule is set in said vertical passage; a lateral passage extending laterally from a side of said support block and communicating with said vertical passage; and a suction unit connected to said lateral passage to draw a quantity of adhesive from said front aperture to said rear aperture, forming a mass of adhesive.
Claim 2
Dependent Claim
120 words
Apparatus for attaching an optical cable to a ferrule which has a front aperture for holding an optical cable and a rear aperture for retaining an optical fiber of said optical cable, comprising: a support block; a vertical passage extending downwardly from an upper face of said support block; sealing means disposed around said vertical passage for making an airtight seal when a rear section of said ferrule is set in said vertical passage; a lateral passage extending laterally from a side of said support block and communicating with said vertical passage; and a suction unit connected to said lateral passage to draw a quantity of adhesive from said front aperture to said rear aperture, forming a mass of adhesive.
Claim 3
Independent Claim
100 words
A method of attaching an optical fiber to a ferrule which has a front aperture for holding an optical cable and a rear aperture for retaining an optical fiber of said optical cable, comprising the steps of: putting a quantity of adhesive into said front aperture; applying a drawing pressure to said rear aperture to draw said adhesive from said rear aperture, forming a mass of adhesive; inserting an optical fiber into said ferrule; letting said adhesive to become hard; and grinding an optical fiber projected from said rear aperture together with said mass of adhesive, forming an abutment face.
Claim 4
Independent Claim
100 words
A method of attaching an optical fiber to a ferrule which has a front aperture for holding an optical cable and a rear aperture for retaining an optical fiber of said optical cable, comprising the steps of: putting a quantity of adhesive into said front aperture; applying a drawing pressure to said rear aperture to draw said adhesive from said rear aperture, forming a mass of adhesive; inserting an optical fiber into said ferrule; letting said adhesive to become hard; and grinding an optical fiber projected from said rear aperture together with said mass of adhesive, forming an abutment face.
References Cited (Backward Citations)
US4678271A
Cited
US5062384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-04-26 | 1996-10-26 | 1997-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-26 | 2000-10-26 | 2001-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-26 | 2004-10-26 | 2005-04-27 | $7700.00 | Window Closed / Lapsed |