US3557596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and apparatus for sealing a tubulation
Assignee: AT&T Inc
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Filing: 1968-03-18
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Granted: 1971-01-26
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Expires: 1988-03-18
Abstract
Abstract METHODS OF AND APPARATUS FOR SEALING A TUBULATION EXTENDING UPWARDLY FROM, AND ATTACHED TO, AN ARTICLE WHICH IS SUPPORTED ON A CONVEYOR, IN WHICH A SPRING-LOAD MAGNETIC CHUCK ATTRACTS THE FREE END OF THE TUBULATION AND HOLDS THE ARTICLE SLIGHTLY ABOVE THE CONVEYOR. FIRST AND SECOND OPPOSED MEMBERS ARE MOVED TOWARD EACH OTHER TO PINCH SEAL THE TUBULATION WITH THE AXIAL ELONGATION OF THE TUBULATION IN OPPOSITE DIRECTIONS TAKEN UP BY THE MAGNETIC CHUCK PUSHED UPWARDLY AGAINST THE SPRING AND THE ARTICLE MOVING DOWNWARDLY TOWARD THE CONVEYOR.
Inventors
- 👤 Werner F Esseluhn
- 👤 Charles R Fegley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:43
CPC Classifications
H; H01; H01R; H01R43/00; H01R43/04; H01R43/048; H01J; H01J9/00; H01J9/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |