Patent US3604392A successfully refreshed from Google Patents.
US3604392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for manufacturing a plastic insulated wire
Assignee: Sumitomo Electric Industries Ltd
•
Filing: 1969-01-09
•
Granted: 1971-09-14
•
Expires: 1989-01-09
Abstract
Abstract A water spray and water-filled means are positioned in tandem intermediate of a melted plastic insulation extruder which concentrically coats a moving conductor and the coated wire takeup means. A liquid bath or wet sponge contacts the cooled plastic insulated wire to suppress lateral vibration.
Inventors
- 👤 Chisato Kawazoe
- 👤 Terumichi Ichiba
- 👤 Hiroyuki Kumamaru
- 👤 Toshio Motegi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:56
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/14; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/06; B29C48/15; B29C48/25; B29C48/88; B29C48/911; B29C48/919
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
113 words
In an apparatus for manufacturing a plastic coated conductor comprising conductor payoff means, means for successively coating melted plastics about said conductor, a pulling capstan and means for spooling said coated conductor, the improvement comprising: a pair of longitudinally spaced water-spraying devices operatively positioned with respect to said coated conductor between said melted plastics coating means and said pulling capstan for cooling said melted plastics, and means intermediate said spaced water-spraying means in contact with said coated conductor for suppressing lateral vibration of the coated conductor due to impact of the water spray on the moving conductor, said vibration-suppressing means being shorter in total length than the combined length of said water-spraying devices.
Claim 2
Dependent Claim
113 words
In an apparatus for manufacturing a plastic coated conductor comprising conductor payoff means, means for successively coating melted plastics about said conductor, a pulling capstan and means for spooling said coated conductor, the improvement comprising: a pair of longitudinally spaced water-spraying devices operatively positioned with respect to said coated conductor between said melted plastics coating means and said pulling capstan for cooling said melted plastics, and means intermediate said spaced water-spraying means in contact with said coated conductor for suppressing lateral vibration of the coated conductor due to impact of the water spray on the moving conductor, said vibration-suppressing means being shorter in total length than the combined length of said water-spraying devices.
Claim 3
Dependent Claim
15 words
The apparatus as claimed in claim 1, wherein said vibration-suppressing means comprises a water-filled trough.
Claim 4
Dependent Claim
15 words
The apparatus as claimed in claim 1, wherein said vibration-suppressing means comprises a water-filled sponge.
References Cited (Backward Citations)
US246728A
Cited
US426420A
Cited
US632656A
Cited
US2287825A
Cited
US2393023A
Cited
US2521807A
Cited
US2763275A
Cited
GB993566A
Cited
US3251708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-13 | 1975-03-15 | 1975-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-13 | 1979-03-15 | 1979-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-13 | 1983-03-15 | 1983-09-14 | $7700.00 | Window Closed / Lapsed |