Patent US4727222A successfully refreshed from Google Patents.
US4727222A
Expired / Lapsed
US
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Flexible shielded coaxial cable
Assignee: Junkosha Co Ltd
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Filing: 1986-11-17
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Granted: 1988-02-23
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Expires: 2006-11-17
Abstract
Abstract An improved flexible shielded electrical coaxial cable is provided having a shielding layer surrounding a core line, wherein the shielding layer comprises a plurality of metal wires helically overwrapped about the core line, adjacent wraps being in close contact, wherein the improvement comprises at least one strip interwoven in a stitching manner among the metal wires of the shielding layer. The strip is preferably a strip of expanded, porous polytetrafluoroethylene. The cable is highly flexible and useful in robots, for example.
Inventors
- 👤 Shunichi Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:28
CPC Classifications
H; H01; H01B; H01B11/00; H01B11/02; H01B11/06; H01B11/10; H01B11/1041
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
67 words
An improved flexible shielded electrical coaxial cable having a shielding layer surrounding a core line, wherein said shielding layer comprises a plurality of metal wires helically overwrapped about said core line, adjacent wraps of metal wires being in close contact, wherein the improvement comprises at least one strip of a low friction plastic material interwoven in a stitching manner among said metal wires of said shielding layer.
Claim 2
Dependent Claim
67 words
An improved flexible shielded electrical coaxial cable having a shielding layer surrounding a core line, wherein said shielding layer comprises a plurality of metal wires helically overwrapped about said core line, adjacent wraps of metal wires being in close contact, wherein the improvement comprises at least one strip of a low friction plastic material interwoven in a stitching manner among said metal wires of said shielding layer.
Claim 3
Dependent Claim
15 words
The cable of claim 1 wherein said strip is a strip of an elastomeric material.
Claim 4
Dependent Claim
15 words
The cable of claim 1 wherein said strip is a strip of porous, expanded polytetrafluoroethylene.
References Cited (Backward Citations)
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US1880060A
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US2663752A
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US3665096A
Cited
US4131757A
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US4440973A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-02-22 | 1991-08-24 | 1992-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-02-22 | 1995-08-24 | 1996-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-02-22 | 1999-08-24 | 2000-02-23 | $7700.00 | Window Closed / Lapsed |