US3245143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a vacuum-tight joint of relatively thin parts
Assignee: Thales SA
•
Filing: 1962-08-09
•
Granted: 1966-04-12
•
Expires: 1982-08-09
Abstract
No abstract record available.
Inventors
- 👤 Chopinet Guy
- 👤 Dumon Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:42
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/0026; B23K9/0035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A METHOD OF PRODUCING A VACUUM-TIGHT JOINT BETWEEN TWO METAL SHEETS, COMPRISING THE STEPS OF PLACING AT LEAST THE TERMINAL PORTIONS OF SAID SHEETS TO FACE EACH OTHER WITH A SMALL GAP LEFT THEREBETWEEN IN SUCH A MANNER THAT THE RESPECTIVE EDGE PORTIONS OF THE SHEETS ARE SUBSTANTIALLY PARALLEL, THE EDGE PORTION OF ONE OF THE TWO SHEETS PROJECTING BEYOND THE EDGE PORTION OF THE OTHER SHEET BY A PREDETERMINED DISTANCE IN THE PLANE OF SAID GAP, AND OF MELTING ONLY SAID PROJECTING EDGE PORTION WHEREBY THE MOLTEN METAL OF SAID ONE SHEET FOLDS OVER THE UNMOLTEN EDGE PORTION OF SAID OTHER SHEET TO BE WELDED TOGETHER BY SELF-BRAZING.
Claim 2
Independent Claim
109 words
A METHOD OF PRODUCING A VACUUM-TIGHT JOINT BETWEEN TWO METAL SHEETS, COMPRISING THE STEPS OF PLACING AT LEAST THE TERMINAL PORTIONS OF SAID SHEETS TO FACE EACH OTHER WITH A SMALL GAP LEFT THEREBETWEEN IN SUCH A MANNER THAT THE RESPECTIVE EDGE PORTIONS OF THE SHEETS ARE SUBSTANTIALLY PARALLEL, THE EDGE PORTION OF ONE OF THE TWO SHEETS PROJECTING BEYOND THE EDGE PORTION OF THE OTHER SHEET BY A PREDETERMINED DISTANCE IN THE PLANE OF SAID GAP, AND OF MELTING ONLY SAID PROJECTING EDGE PORTION WHEREBY THE MOLTEN METAL OF SAID ONE SHEET FOLDS OVER THE UNMOLTEN EDGE PORTION OF SAID OTHER SHEET TO BE WELDED TOGETHER BY SELF-BRAZING.
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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) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |