Apparatus for making coaxial cable with welded metal sheath
Abstract
Abstract THIS APPARATUS FOR MAKING COAXIAL CABLE FORMS A LONGITUDINALLY SEAMED TUBE FROM FLAT STOCK PROGRESSIVELY AROUND A CONTINUOUSLY TRAVELLING CABLE CORE. THE TUBE IS MADE LARGER THAN THE CABLE CORE AND AFTER WELDING, THE ASSEMBLY IS PULLED THROUGH A DIE THAT REDUCES THE DIAMETER OF THE TUBE TO MAKE IT CONTACT WITH AND SQUEEZE THE INSULATION ON THE CORE. THE SIZING DIE IS CLOSED TO THE WELDING REGION SO THAT THERE IS ONLY A SHORT DISTANCE IN WHICH THE CORE MOVES AT A FASTER RATE THAN THE TUBULAR SHEATH THAT ENCLOSES IT. LUBRICANT IS APPLIED TO THE TUBE AHEAD OF THE DIE AND IS WASHED OFF BEYOND THE DIE BEFORE THE CABLE ENTERS A FRICTION PULLER THAT PULLS THE CABLE THROUGH THE DIE.
Inventors
- 👤 Oscar G Garner
Bibliographic Details
Claims Analysis
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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) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |