US3326244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for centering an inner conduit within an outer conduit
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1964-09-03
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Granted: 1967-06-20
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Expires: 1984-09-03
Abstract
No abstract record available.
Inventors
- 👤 Charles Pierre
- 👤 Prevost Camille
- 👤 Testard Olivier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:26
CPC Classifications
F; F16; F16L; F16L59/00; F16L59/06; F16L59/12; F16L59/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
DEVICE FOR CENTERING AN INNER CONDUIT WITHIN AN OUTER CONDUIT, WHEREIN SAID DEVICE COMPRISES TWO COAXIAL TUBULAR ELEMENTS HAVING THE SAME DIAMETER WHICH ARE SLIDABLY MOUNTED INSIDE THE OUTER CONDUIT, MEANS FOR SECURING SAID ELEMENTS AGAINST ROTATION RELATIVELY TO EACH OTHER AND FOR PREVENTING ANY AXIAL MOVEMENT OF SAID ELEMENTS TOWARDS EACH OTHER AND A PLURALITY OF FLEXIBLE WIRES HAVING THE SAME LENGTH, THE TWO ENDS OF WHICH ARE ATTACHED RESPECTIVELY TO THE TWO TUBULAR ELEMENTS AND ARE DISPLACED RELATIVELY TO EACH OTHER THROUGH AN ANGLE WHICH IS CONSTANT FROM ONE WIRE TO THE OTHER, SAID WIRES BEING ADAPTED TO FORM AN ARC IN CONTACT WITH SAID INNER CONDUIT.
Claim 2
Dependent Claim
109 words
DEVICE FOR CENTERING AN INNER CONDUIT WITHIN AN OUTER CONDUIT, WHEREIN SAID DEVICE COMPRISES TWO COAXIAL TUBULAR ELEMENTS HAVING THE SAME DIAMETER WHICH ARE SLIDABLY MOUNTED INSIDE THE OUTER CONDUIT, MEANS FOR SECURING SAID ELEMENTS AGAINST ROTATION RELATIVELY TO EACH OTHER AND FOR PREVENTING ANY AXIAL MOVEMENT OF SAID ELEMENTS TOWARDS EACH OTHER AND A PLURALITY OF FLEXIBLE WIRES HAVING THE SAME LENGTH, THE TWO ENDS OF WHICH ARE ATTACHED RESPECTIVELY TO THE TWO TUBULAR ELEMENTS AND ARE DISPLACED RELATIVELY TO EACH OTHER THROUGH AN ANGLE WHICH IS CONSTANT FROM ONE WIRE TO THE OTHER, SAID WIRES BEING ADAPTED TO FORM AN ARC IN CONTACT WITH SAID INNER CONDUIT.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |