US3012922A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for forming fiber glass tubes
Assignee: White Sewing Machine Corp
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Filing: 1958-10-16
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Granted: 1961-12-12
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Expires: 1978-10-16
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Wiltshire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:41
CPC Classifications
B; B29; B29C; B29C41/00; B29C41/34; B29C41/36; B29C41/365; B29C41/02; B29C41/20; B29C70/00; B29C70/04; B29C70/28; B29C70/30; B29C70/32; B29C70/323; B29C70/326; B29C70/68; B29C70/70; B29C2791/00; B29C2791/001; B29C41/04; Y; Y10; Y10S; Y10S220/00; Y10S220/14; Y10S264/00; Y10S264/53; Y10S264/72; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1062
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
133 words
A MACHINE FOR MAKING FIBER GLASS TUBES COMPRISING A HOLLOW CYLINDRICAL MANDREL MOUNTED FOR ROTATION ABOUT THE LONGITUDINAL AXIS OF THE MANDREL, MEANS INSIDE THE MANDREL MOVABLE ALONG THE LENGTH OF THE MANDREL DURING ITS ROTATION, SAID MEANS INCLUDING FIBER GLASS CHOPPING MEANS, MEANS FOR PASSING FIBER GLASS IN CONTINUOUS STRAND FORM TO SAID CHOPPING MEANS TO BE DEPOSITED BY GRAVITY IN CHOPPED FORM ON THE INTERIOR WALL OF THE MANDREL AND TO BE HELD AGAINST SAID INTERIOR WALL OF THE MANDREL BY CENTRIFUGAL FORCE DUE TO THE ROTATION OF THE MANDREL, MEANS FOR DEPOSITING THERMO-SETTING RESIN ONTO SAID CHOPPED FIBERS ON THE INSIDE OF THE MANDREL DURING THE MANDREL ROTATION AND HEATING MEANS AT THE OUTSIDE OF THE MANDREL FOR CURING THE RESIN AND CHOPPED FIBERS ON THE INSIDE OF THE MANDREL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |