Patent US3132416A successfully refreshed from Google Patents.
US3132416A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for manufacturing and installing continuous conduit
Assignee: FMC Corp
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Filing: 1961-03-14
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Granted: 1964-05-12
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Expires: 1981-03-14
Abstract
No abstract record available.
Inventors
- 👤 James M Hait
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:51
CPC Classifications
B; B29; B29D; B29D23/00; B29D23/001; B21; B21C; B21C37/00; B21C37/06; B21C37/08; B21C37/09; B29C; B29C53/00; B29C53/36; B29C53/38; B29C53/48; B29C53/50; B29C53/56; B29C53/58; B29C53/583; B29C53/587; B29C67/00; B29C35/00; B29C35/02; B29C35/04; B29C35/045; B29K; B29K2105/00; B29K2105/06; B29K2105/08; B29L; B29L2009/00; B29L2009/003; B29L2023/00; B29L2023/005; Y; Y10; Y10S; Y10S228/00; Y10S228/903; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49828; Y10T29/53; Y10T29/53126
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
175 words
A METHOD OF MANUFACTURING AND INSTALLING A CONTINUOUS SEMI-RIGID TUBE COMPRISING THE STEPS OF UNROLLING A FLAT WEB OF HEAT CONDUCTIVE FLEXIBLE MATERIAL FROM A CONTINUOUS COIL, CONTINUOUSLY ADVANCING THE WEB LENGTHWISE, TRANSVERSELY ROLLING THE MOVING WEB INTO A CYLINDRICAL TUBE AS THE WEB ADVANCES FROM THE COIL, SAID ROLLING CAUSING THE SIDE EDGES OF THE WEB PROGRESSIVELY TO CONVERGE TO FORM A SEAM, EFFECTING AN ENDLESS FLUID-TIGHT BOND BETWEEN SAID SIDE EDGES ALONG SAID SEAM TO FORM THE WEB INTO A TUBE, WRAPPING THE TUBE WITH AN UNCURED THERMOSETTING RESIN-IMPREGNATED REINFORCING MATERIAL, WRAPPING THE REINFORCING MATERIAL AND THE TUBE WITH A PROTECTIVE COVERING OVER SAID REINFORCING MATERIAL, DEPOSITING BY FLEXING THE CONTINUOUS, WRAPPED TUBE UPON A SUPPORT BEFORE THE RESIN IS COMPLETELY SET, AND FORCING HOT AIR INTO THE TUBE BETWEEN SAID CONVERGING SIDE EDGES AND THENCE THROUGH THE TUBE AS THE SAME IS BEING FORMED TO EFFECT POLYMERIZATION OF THE RESIN AND CONSEQUENT BONDING TOGETHER OF THE TUBE, THE REINFORCING MATERIAL AND THE PROTECTIVE COVERING BY HEAT TRANSFER THROUGH THE HEAT CONDUCTIVE MATERIAL.
Claim 2
Independent Claim
175 words
A METHOD OF MANUFACTURING AND INSTALLING A CONTINUOUS SEMI-RIGID TUBE COMPRISING THE STEPS OF UNROLLING A FLAT WEB OF HEAT CONDUCTIVE FLEXIBLE MATERIAL FROM A CONTINUOUS COIL, CONTINUOUSLY ADVANCING THE WEB LENGTHWISE, TRANSVERSELY ROLLING THE MOVING WEB INTO A CYLINDRICAL TUBE AS THE WEB ADVANCES FROM THE COIL, SAID ROLLING CAUSING THE SIDE EDGES OF THE WEB PROGRESSIVELY TO CONVERGE TO FORM A SEAM, EFFECTING AN ENDLESS FLUID-TIGHT BOND BETWEEN SAID SIDE EDGES ALONG SAID SEAM TO FORM THE WEB INTO A TUBE, WRAPPING THE TUBE WITH AN UNCURED THERMOSETTING RESIN-IMPREGNATED REINFORCING MATERIAL, WRAPPING THE REINFORCING MATERIAL AND THE TUBE WITH A PROTECTIVE COVERING OVER SAID REINFORCING MATERIAL, DEPOSITING BY FLEXING THE CONTINUOUS, WRAPPED TUBE UPON A SUPPORT BEFORE THE RESIN IS COMPLETELY SET, AND FORCING HOT AIR INTO THE TUBE BETWEEN SAID CONVERGING SIDE EDGES AND THENCE THROUGH THE TUBE AS THE SAME IS BEING FORMED TO EFFECT POLYMERIZATION OF THE RESIN AND CONSEQUENT BONDING TOGETHER OF THE TUBE, THE REINFORCING MATERIAL AND THE PROTECTIVE COVERING BY HEAT TRANSFER THROUGH THE HEAT CONDUCTIVE MATERIAL.
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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |