US3284192A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of determining graphite shapes in nodular iron
Assignee: Motors Liquidation Co
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Filing: 1963-01-22
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Granted: 1966-11-08
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Expires: 1983-01-22
Abstract
No abstract record available.
Inventors
- 👤 William B Larson
- 👤 Kenneth E Spray
- 👤 Thomas W Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:30
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/20; G01N33/205; G01N33/202; G01N33/2022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
IN A METHOD OF TESTING MOLTEN FREE GRAPHITE CONTAINING FERROUS METAL TO DETERMINED SUCH FINAL PHYSICAL PROPERTIES OF PARTS CAST THERFROM AS STRENGTH AND DUCTILITY WHILE CORRECTIVE MEASURE MAY BE TAKEN INCLUDING THE STEPS OF CASTING A SAMPLE OF A GIVEN SHAPE AND SIZE, REDUCING THE TEMPRATURE OF THE SAMPLE CASTING ON A DEFINED SCHEDULE TO ROOM TEMPERATURE, SETTING SAID SAMPLE CASTING INTO RESONANT VIBRATION, DETERMINING THE FREQUENCY OF SAID RESONANT VIBRATION AS AN INDICATION OF THE SIZE AND SHAPE OF THE GRAPHITE PARTICLES THEREIN WHICH DETERMINES
Claim 2
Dependent Claim
87 words
IN A METHOD OF TESTING MOLTEN FREE GRAPHITE CONTAINING FERROUS METAL TO DETERMINED SUCH FINAL PHYSICAL PROPERTIES OF PARTS CAST THERFROM AS STRENGTH AND DUCTILITY WHILE CORRECTIVE MEASURE MAY BE TAKEN INCLUDING THE STEPS OF CASTING A SAMPLE OF A GIVEN SHAPE AND SIZE, REDUCING THE TEMPRATURE OF THE SAMPLE CASTING ON A DEFINED SCHEDULE TO ROOM TEMPERATURE, SETTING SAID SAMPLE CASTING INTO RESONANT VIBRATION, DETERMINING THE FREQUENCY OF SAID RESONANT VIBRATION AS AN INDICATION OF THE SIZE AND SHAPE OF THE GRAPHITE PARTICLES THEREIN WHICH DETERMINES
References Cited (Backward Citations)
US2403999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |