US2763154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of studying the distribution of strain in mechanical parts
Assignee: Office National d'Études et de Recherches Aérospatiales
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Filing: 1951-06-08
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Granted: 1956-09-18
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Expires: 1971-06-08
Abstract
No abstract record available.
Inventors
- 👤 Kohn Samuel
- 👤 Guyot Herve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:33
CPC Classifications
G; G01; G01B; G01B11/00; G01B11/16; G01B11/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
THE METHOD OF STRAIN-TESTING A MECHANICAL PART, WHICH COMPRISES COATING SAID PART WITH A VARNISH COMPRISING A LOW BOILING-POINT SOLVENT, A RESIN HAVING A KRAMER-SARNOW POINT IN THE RANGE OF FROM 80* C. TO 100* C. AND A PLASTICIZER,, HEATING SAID COATED PART UNTIL CONVERSION OF SAID COATING TO ENAMEL, THEN ALLOWING SAID PART TO COOL TO ROOM TEMPERATURE AND SUBJECTING THE PART TO A PREDETERMINED STRAIN PRODUCING CRACKS IN SAID COATING.
Claim 2
Independent Claim
72 words
THE METHOD OF STRAIN-TESTING A MECHANICAL PART, WHICH COMPRISES COATING SAID PART WITH A VARNISH COMPRISING A LOW BOILING-POINT SOLVENT, A RESIN HAVING A KRAMER-SARNOW POINT IN THE RANGE OF FROM 80* C. TO 100* C. AND A PLASTICIZER,, HEATING SAID COATED PART UNTIL CONVERSION OF SAID COATING TO ENAMEL, THEN ALLOWING SAID PART TO COOL TO ROOM TEMPERATURE AND SUBJECTING THE PART TO A PREDETERMINED STRAIN PRODUCING CRACKS IN SAID COATING.
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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) | 1959-09-18 | 1960-03-19 | 1960-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-18 | 1964-03-19 | 1964-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-18 | 1968-03-19 | 1968-09-18 | $7700.00 | Window Closed / Lapsed |