US3365079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Application of said method hot cell having a thin diaphragm and method of maintaining a flat surface on said diaphragm
Assignee: Commissariat à l'Énergie Atomique et Aux Énergies Alternatives
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Filing: 1964-09-08
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Granted: 1968-01-23
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Expires: 1984-09-08
Abstract
No abstract record available.
Inventors
- 👤 Mauguen Pierre
- 👤 Valentin Andre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:08
CPC Classifications
F; F16; F16J; F16J3/00; F16J3/02; G; G21; G21F; G21F7/00; G21F7/005; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49867; Y10T29/49869
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
128 words
A METHOD OF OBTAINING AND MAINTAINING A FLAT SURFACE ON A THIN DIAPHRAGM PROVIDED WITH AN OPENING, SAID METHOD COMPRISING: PROVIDING A FIRST FRAME WHICH CORESPONDS TO THE CONTOUR OF SAID DIAPHRAGM; SUBJECTING SAID FIRST FRAME TO STRESSES WHICH TEND TO SHRINK SAID FRAME; PROVIDING A SECOND INNER FRAME WHICH CORRESPONDS IN SHAPE TO THE CONTOUR OF THE OPENING; TENSIONING SAID SECOND FRAME SO AS TO TEND TO ENLARGE SAID SECOND FRAME: RIGIDLY FIXING THE EDGE OF THE DIAPHRAGM TO SAID FIRST FRAME; RIDIGLY FIXING THE EDGE OF THE OPENING TO SAID SECOND FRAME; AND REDUCING TO ZERO THE STRESSES APPLIED TO SAID FRAMES WHEREBY EACH OF SAID FRAME TENDS TO REVERT TO ITS INITIAL SHAPE AND TO APPLY TRACTIVE EFFORTS ALONG THE ENTIRE PERIPHERY OF THE DIAPHRAGM.
Claim 2
Independent Claim
128 words
A METHOD OF OBTAINING AND MAINTAINING A FLAT SURFACE ON A THIN DIAPHRAGM PROVIDED WITH AN OPENING, SAID METHOD COMPRISING: PROVIDING A FIRST FRAME WHICH CORESPONDS TO THE CONTOUR OF SAID DIAPHRAGM; SUBJECTING SAID FIRST FRAME TO STRESSES WHICH TEND TO SHRINK SAID FRAME; PROVIDING A SECOND INNER FRAME WHICH CORRESPONDS IN SHAPE TO THE CONTOUR OF THE OPENING; TENSIONING SAID SECOND FRAME SO AS TO TEND TO ENLARGE SAID SECOND FRAME: RIGIDLY FIXING THE EDGE OF THE DIAPHRAGM TO SAID FIRST FRAME; RIDIGLY FIXING THE EDGE OF THE OPENING TO SAID SECOND FRAME; AND REDUCING TO ZERO THE STRESSES APPLIED TO SAID FRAMES WHEREBY EACH OF SAID FRAME TENDS TO REVERT TO ITS INITIAL SHAPE AND TO APPLY TRACTIVE EFFORTS ALONG THE ENTIRE PERIPHERY OF THE DIAPHRAGM.
Claim 3
Dependent Claim
108 words
A HOT CELL COMPRISING A LEAK-TIGHT CASING COMPRISING A LATERAL VERTICAL WALL; A THIN HORIZONTAL DIAPHRAGM FORMED OF A NON-FERROMAGNETIC METAL; A RIGID FRAME SECURED TO SAID WALL AND ADAPTED TO BE CONNECTED TO ADJUSTABLE MEANS FOR APPLYING STRESSES WHICH TEND TO SHRINK SAID FRAME; REMOVABLE MEANS FOR POSITIVELY SECURING THE PERIPHERY OF SAID DIAPHRAGM TO SAID FRAME AT A TIME WHEN SAID FRAME IS UNDER STRESS, WHEREBY SAID FRAME, WHEN RETURNED TO AN UNSTRESSED CONDITION, WILL EXERT TRACTIVE EFFORTS ON THE COMPLETE PERIPHERY OF THE DIAPHRAGM IN ORDER TO MAINTAIN SAID DIAPHRAGM IN A SUBSTANTIALLY FLAT SURFACE; AND A MANIPULATOR OPERATED BY MAGNET TRANSMISSION THROUGH SAID DIAPHRAGM.
Claim 4
Dependent Claim
108 words
A HOT CELL COMPRISING A LEAK-TIGHT CASING COMPRISING A LATERAL VERTICAL WALL; A THIN HORIZONTAL DIAPHRAGM FORMED OF A NON-FERROMAGNETIC METAL; A RIGID FRAME SECURED TO SAID WALL AND ADAPTED TO BE CONNECTED TO ADJUSTABLE MEANS FOR APPLYING STRESSES WHICH TEND TO SHRINK SAID FRAME; REMOVABLE MEANS FOR POSITIVELY SECURING THE PERIPHERY OF SAID DIAPHRAGM TO SAID FRAME AT A TIME WHEN SAID FRAME IS UNDER STRESS, WHEREBY SAID FRAME, WHEN RETURNED TO AN UNSTRESSED CONDITION, WILL EXERT TRACTIVE EFFORTS ON THE COMPLETE PERIPHERY OF THE DIAPHRAGM IN ORDER TO MAINTAIN SAID DIAPHRAGM IN A SUBSTANTIALLY FLAT SURFACE; AND A MANIPULATOR OPERATED BY MAGNET TRANSMISSION THROUGH SAID DIAPHRAGM.
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |