US4371745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shielded wire
Assignee: Kawai Musical Instruments Manufacturing Co Ltd
•
Filing: 1980-11-07
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Granted: 1983-02-01
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Expires: 2000-11-07
Abstract
Abstract A shielded wire in which an insulation layer covered wire and a ground wire are both covered with a conductive material layer. The ground wire is covered, furthermore, with a conductive high molecular material layer. The latter and the conductive material layer are in mutual contact so that they are mechanically separable from each other and are, at the same time, electrically connected to each other. The conductive high molecular material layer may be made of conductive synthetic resin such as conductive polyvinyl chloride and the like, or of conductive rubber. The conductive material layer may also be made of the latter materials, as well as of metal.
Inventors
- 👤 Masao Sakashita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:20
CPC Classifications
H; H01; H01B; H01B9/00; H01B9/02; H01B9/028; H01R; H01R4/00; H01R4/24; H01R4/2416; H01R4/2445; Y; Y10; Y10S; Y10S174/00; Y10S174/13; Y10S174/31
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
121 words
A shielded wire suitable for use with a pressure clip connector, said wire consisting of a first wire having an electrical insulation layer thereon, a ground wire, an electrically-conductive high molecular material layer covering said ground wire, an electrically-conductive material layer covering both said first wire with electrical insulation layer and said ground wire with electrically-conductive high molecular material layer; and an outer electrically-insulating layer covering said electrically-conductive material layer; said electrically-conductive high molecular layer and said electrically-conductive material layer being in mutual contact so that they are mechanically separable from each other and are electrically connected to each other; said electrical-insulation layer and said electrically conductive high molecular material layer being substantially equal in thickness and diameter to each other.
Claim 2
Dependent Claim
121 words
A shielded wire suitable for use with a pressure clip connector, said wire consisting of a first wire having an electrical insulation layer thereon, a ground wire, an electrically-conductive high molecular material layer covering said ground wire, an electrically-conductive material layer covering both said first wire with electrical insulation layer and said ground wire with electrically-conductive high molecular material layer; and an outer electrically-insulating layer covering said electrically-conductive material layer; said electrically-conductive high molecular layer and said electrically-conductive material layer being in mutual contact so that they are mechanically separable from each other and are electrically connected to each other; said electrical-insulation layer and said electrically conductive high molecular material layer being substantially equal in thickness and diameter to each other.
Claim 3
Dependent Claim
34 words
A shielded wire as defined in claim 1, wherein said electrically-conductive high molecular material layer is comprised of an electrically-conductive synthetic resin selected from the group consisting of electrically-conductive polyvinyl chloride and electrically-conductive rubber.
Claim 4
Dependent Claim
30 words
A shielded wire as defined in claim 1, wherein said electrically-conductive material layer is comprised of a material selected from the group consisting of electrically-conductive polyvinyl chloride and electrically-conductive rubber.
Claim 5
Dependent Claim
30 words
A shielded wire as defined in claim 2, wherein said electrically-conductive material layer is comprised of a material selected from the group consisting of electrically-conductive polyvinyl chloride and electrically-conductive rubber.
References Cited (Backward Citations)
US3816644A
Cited
US4002820A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-01-31 | 1986-08-02 | 1987-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-01-31 | 1990-08-02 | 1991-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-01-31 | 1994-08-02 | 1995-02-01 | $7700.00 | Window Closed / Lapsed |