Patent US4610503A successfully refreshed from Google Patents.
US4610503A
Expired / Lapsed
US
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Protective device for overhead wires containing optical fiber units
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1984-08-20
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Granted: 1986-09-09
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Expires: 2004-08-20
Abstract
Abstract Structure for connecting overhead earth wires with an optical fiber unit is proposed which comprises a protecting member for protecting the optical fiber unit from deformation. The protecting member is formed with a through hole for passing the optical fiber unit and with longitudinal grooves to receive the conductors.
Inventors
- 👤 Hideaki Miyazaki
- 👤 Yoshikazu Yamano
- 👤 Yasunori Saito
- 👤 Mikihiko Okano
- 👤 Tsuneo Nakano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:11
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/44; G02B6/24; G02B6/36; G02B6/38; G02B6/3801; G02B6/4401; G02B6/4407; G02B6/4415; G02B6/4416; G02B6/4422; G02B6/46; G02B6/48
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
120 words
Structure for connecting overhead earth wires containing an optical fiber unit, said optical fiber unit being disposed in the center of a bundle of conductors, said structure comprising connector means for connecting said overhead earth wires therein and for compression against said conductors for mechanical and electrical connections, and protecting means for protecting said optical fiber unit from being deformed when said connector means is compressed, said protecting member having a tapered portion merging into a straight portion and being formed with a through hole to pass said optical fiber unit therethrough and a plurality of longitudinal grooves extending from the middle of said tapered portion and through the complete length of said straight portion for receiving said conductors therein.
Claim 2
Dependent Claim
120 words
Structure for connecting overhead earth wires containing an optical fiber unit, said optical fiber unit being disposed in the center of a bundle of conductors, said structure comprising connector means for connecting said overhead earth wires therein and for compression against said conductors for mechanical and electrical connections, and protecting means for protecting said optical fiber unit from being deformed when said connector means is compressed, said protecting member having a tapered portion merging into a straight portion and being formed with a through hole to pass said optical fiber unit therethrough and a plurality of longitudinal grooves extending from the middle of said tapered portion and through the complete length of said straight portion for receiving said conductors therein.
Claim 3
Dependent Claim
16 words
The structure as claimed in claim 1, wherein said connecting means is a dead end clamp.
Claim 4
Dependent Claim
16 words
The structure as claimed in claim 1, wherein said connecting means is a mid span joint.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-09-08 | 1990-03-10 | 1990-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-08 | 1994-03-10 | 1994-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-08 | 1998-03-10 | 1998-09-09 | $7700.00 | Window Closed / Lapsed |