US3376181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for blowing plastic liner in continuously formed tubes having longitudinal seam
Assignee: Continental Can Co Inc
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Filing: 1963-07-31
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Granted: 1968-04-02
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Expires: 1983-07-31
Abstract
No abstract record available.
Inventors
- 👤 Ralph A Larson
- 👤 Ronald L Millar
- 👤 Curtis E Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:50
CPC Classifications
B; B31; B31F; B31F1/00; B31F1/0003; B31F1/0045; B31F1/0048; B31F1/0061; B05; B05C; B05C7/00; B29; B29C; B29C48/00; B29C48/001; B29C48/0022; B29C48/15; B29C48/151; B29C48/152; B29C53/00; B29C53/36; B29C53/38; B29C53/48; B29C53/50; B29C69/00; B29C69/007; B29C69/008; B29C2793/00; B29C2793/0027; B29C2793/009; B29C48/0019; B29C48/03; B29C48/07; B29C48/08; B29C48/09; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1008; Y10T156/1013
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
110 words
A METHOD OF EXTRUDING A TUBULAR LINING TO A LONGITUDINALLY SEAMED TUBED DURING THE FABRICATION OF THE SEAMED TUBE COMPRISING THE STEPS OF ADVANCING A STRIP OF MATERIAL ALONG A PREDETERMINED PATH, PROGRESSIVELY FORMING THE STRIP OF MATERIAL INTO A TUBE WITH THE ONGITUDINA EDGES THEREOF IN CONTACT, SEAMING THE LONGITUDINAL EDGES OF THE SEAMED TUBE, EXTRUDING A TUBULAR LINING INTO THE INTERIOR OF THE SEAMED TUBE, APPLYING AN ADHESIVE COATING TO AN INTERIOR SURFACE OF THE SEAMED TUBE AND FORMING A PARTIAL VACUUM IN A CHAMBER BETWEEN THE SEAMED TUBE AND THE TUBULAR LINING THEREBY EXPANDING THE TUBULAR LINING INTO ADHESIVE CONTACT WITH THE INTERIOR OF THE SEAMED TUBE.
References Cited (Backward Citations)
US2570259A
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US2695255A
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US2873227A
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US2934130A
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US2958364A
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US3207651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-04-02 | 1971-10-02 | 1972-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-02 | 1975-10-02 | 1976-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-02 | 1979-10-02 | 1980-04-02 | $7700.00 | Window Closed / Lapsed |