US2708771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion apparatus
Assignee: TDK Micronas GmbH
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Filing: 1952-06-05
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Granted: 1955-05-24
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Expires: 1972-06-05
Abstract
No abstract record available.
Inventors
- 👤 Ira T Stoneback
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:15
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/78; B29C48/80; B29C48/83; B29C48/832; B29C48/03; B29C48/06; B29C48/79; B29C48/86; B29C48/865; B29C48/05; B29C48/30; B29C48/32; B29C48/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
AN APPARATUS FOR EXTRUDING A PLASTIC SHEATH ABOUT A WIRE CONDUCTOR COMPRISING AN EXTRUSION HEAD HAVING AN AXIALLY EXTENDING CHANNEL, MEANS COMMUNICATING WITH SAID CHANNEL FOR SUPPLYING PLASTIC IN A FLUID STATE THERETO, A CORE DISPOSED AXIALLY IN SAID CHANNEL HAVING AN AXIAL OPENING THEREIN THROUGH WHICH SAID CONDUCTOR IS FED, A DIE COUPLED TO SAID EXTRUSION HEAD HAVING AN OPENING EXTENDING THERETHROUGH COMMUNICATING WITH SAID CHANNEL, A TUBULAR TIP DISPOSED AXIALLY IN SAID DIE OPENING AND COUPLED TO SAID CORE WITH THE AXIAL PASSAGE THEREOF ALIGNED WITH SAID CORE''S AXIAL OPENING THROUGH WHICH SAID CONDUCTOR MAY BE FED FOR THE APPLICATION OF SAID SHEATHING, MEANS TO HEAT SAID DIE FOR HEATING SAID PLASTIC MATERIAL THROUGH THE WALLS OF SAID CHANNEL, AND HEATING MEANS EXTENDING AXIALLY THROUGH A SUBSTANTIAL LENGTH OF SAID TIP FOR HEATING SAID CONDUCTOR AND ALSO SAID PLASTIC MATERIAL THROUGH THE WALLS OF SAID TIP.
Claim 2
Independent Claim
148 words
AN APPARATUS FOR EXTRUDING A PLASTIC SHEATH ABOUT A WIRE CONDUCTOR COMPRISING AN EXTRUSION HEAD HAVING AN AXIALLY EXTENDING CHANNEL, MEANS COMMUNICATING WITH SAID CHANNEL FOR SUPPLYING PLASTIC IN A FLUID STATE THERETO, A CORE DISPOSED AXIALLY IN SAID CHANNEL HAVING AN AXIAL OPENING THEREIN THROUGH WHICH SAID CONDUCTOR IS FED, A DIE COUPLED TO SAID EXTRUSION HEAD HAVING AN OPENING EXTENDING THERETHROUGH COMMUNICATING WITH SAID CHANNEL, A TUBULAR TIP DISPOSED AXIALLY IN SAID DIE OPENING AND COUPLED TO SAID CORE WITH THE AXIAL PASSAGE THEREOF ALIGNED WITH SAID CORE''S AXIAL OPENING THROUGH WHICH SAID CONDUCTOR MAY BE FED FOR THE APPLICATION OF SAID SHEATHING, MEANS TO HEAT SAID DIE FOR HEATING SAID PLASTIC MATERIAL THROUGH THE WALLS OF SAID CHANNEL, AND HEATING MEANS EXTENDING AXIALLY THROUGH A SUBSTANTIAL LENGTH OF SAID TIP FOR HEATING SAID CONDUCTOR AND ALSO SAID PLASTIC MATERIAL THROUGH THE WALLS OF SAID TIP.
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) | 1958-05-23 | 1958-11-22 | 1959-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-05-23 | 1962-11-22 | 1963-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-05-23 | 1966-11-22 | 1967-05-24 | $7700.00 | Window Closed / Lapsed |