US3280619A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leak detection
Assignee: KERNREAKTOR BAU und BETR S GES
•
Filing: 1962-07-16
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Granted: 1966-10-25
•
Expires: 1982-07-16
Abstract
No abstract record available.
Inventors
- 👤 Spies Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:55
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
METHOD OF DETECTING LEAKS THROUGH A SURFACE WHICH COMPRISES MAINTAINING A TEST A GAS ON ONE SIDE OF SAID SURFACE UNDER SUFFICIENT PRESSURE TO PASS THROUGH A LEAK IF PRESENT MAINTAINING A VACUUM ENVELOPE VACUUM SEALED WITH WINDOW PERMEABLE TO TEST GAS AND CONTAINING A GETTER SYSTEM CAPABLE OF ABSORBING THE TEST GAS AT A DIFFERENT RATE THAN THE AMBIENT GAS ON THE OPPOSITE SIDE OF SAID SURFACE, WITH THE WINDOW ADJACENT THE SURFACE, INITIALLY ADJUSTING THE PERMEABILITY OF SAID WINDOW BY HEATING, AND
Claim 2
Dependent Claim
84 words
METHOD OF DETECTING LEAKS THROUGH A SURFACE WHICH COMPRISES MAINTAINING A TEST A GAS ON ONE SIDE OF SAID SURFACE UNDER SUFFICIENT PRESSURE TO PASS THROUGH A LEAK IF PRESENT MAINTAINING A VACUUM ENVELOPE VACUUM SEALED WITH WINDOW PERMEABLE TO TEST GAS AND CONTAINING A GETTER SYSTEM CAPABLE OF ABSORBING THE TEST GAS AT A DIFFERENT RATE THAN THE AMBIENT GAS ON THE OPPOSITE SIDE OF SAID SURFACE, WITH THE WINDOW ADJACENT THE SURFACE, INITIALLY ADJUSTING THE PERMEABILITY OF SAID WINDOW BY HEATING, AND
References Cited (Backward Citations)
US2526038A
Cited
US2863315A
Cited
US2909919A
Cited
US2947166A
Cited
FR1181312A
Cited
US2993169A
Cited
US3100868A
Cited
US3070992A
Cited
US2972690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |