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US3138016A
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Fatigue cracking test apparatus
Assignee: Manlabs Inc
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Filing: 1962-10-03
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Granted: 1964-06-23
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Expires: 1982-10-03
Abstract
No abstract record available.
Inventors
- 👤 George M Orner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:41
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/32; G01N2203/00; G01N2203/02; G01N2203/026; G01N2203/0262; G01N2203/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
FATIGUE CRACKING TEST APPARATUS FOR PRE-CRACKING TEST SPECIMENS FOR FRACTURE TOUGHNESS, SAID APPARATUS COMPRISING: A BASE; INPUT CYLICAL LOADING MEANS COUPLED TO SAID BASE FOR CYCLICALLY VARYING THE LOADING ON A TEST SPECIMEN, SAID INPUT CYCLICAL LOADING MEANS INCLUDING ECCENTRIC LOADING MEANS FOR LOADING SAID TEST SPECIMEN; LOAD RESPONSIVE MEANS COUPLED TO SAID BASE FOR PROVIDING A DISPLACEMENT IN RESPONSE TO THE MOTION OF SAID TEST SPECIMEN AND PROPORTIONAL TO THE DEGREE OF LOADING DURING EACH SAID VARIABLE LOADING CYCLE;
Claim 2
Dependent Claim
80 words
FATIGUE CRACKING TEST APPARATUS FOR PRE-CRACKING TEST SPECIMENS FOR FRACTURE TOUGHNESS, SAID APPARATUS COMPRISING: A BASE; INPUT CYLICAL LOADING MEANS COUPLED TO SAID BASE FOR CYCLICALLY VARYING THE LOADING ON A TEST SPECIMEN, SAID INPUT CYCLICAL LOADING MEANS INCLUDING ECCENTRIC LOADING MEANS FOR LOADING SAID TEST SPECIMEN; LOAD RESPONSIVE MEANS COUPLED TO SAID BASE FOR PROVIDING A DISPLACEMENT IN RESPONSE TO THE MOTION OF SAID TEST SPECIMEN AND PROPORTIONAL TO THE DEGREE OF LOADING DURING EACH SAID VARIABLE LOADING CYCLE;
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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |