US3023113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foundry sand composition
Assignee: International Minerals and Chemical Corp
•
Filing: 1958-12-22
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Granted: 1962-02-27
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Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Barlow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:24
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A NOVEL FOUNDRY SAND COMPOSITION COMPRISED OF A MIXTURE OF BETWEEN ABOUT 65 AND ABOUT 96% BY WEIGHT OF SAND, BETWEEN ABOUT 1 AND ABOUT 20% BY WEIGHT OF CLAY, BETWEEN ABOUT 2.5 AND ABOUT 5% BY WEIGHT OF WATER, AND BETWEEN ABOUT 0.5 AND ABOUT 4% BY WEIGHT OF A CARBONACEOUS MATERIAL CONSISTING ESSENTIALLY OF LIGNITE, AN AQUEOUS EMULSION OF ASPHALTIC PITCH HAVING A MELTING POINT ABOVE ABOUT 150*F. AND A CARBONACEOUS SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF WOOD FLOUR, COKE BREEZE AND MIXTURES THEREOF, THE PROPORTION OF SAID CARBONACEOUS SUBSTANCE IN SAID MIXTURE BEING UP TO ABOUT 35% BY WEIGHT OF THE LIGNITE, THE WEIGHT RATIO OF SAID AQUEOUS EMULSION TO SAID LIGNITE AND SAID CARBONACEOUS SUBSTANCE BEING BETWEEN ABOUT 1:1 AND ABOUT 2.5:1 AND THE WEIGHT RATIO OF ASPHALTIC PITCH SOLIDS TO LIGNITE AND CARBONACEOUS SUBSTANCE BEING BETWEEN ABOUT 0.6:1 AND ABOUT 1.46:1.
Claim 2
Dependent Claim
147 words
A NOVEL FOUNDRY SAND COMPOSITION COMPRISED OF A MIXTURE OF BETWEEN ABOUT 65 AND ABOUT 96% BY WEIGHT OF SAND, BETWEEN ABOUT 1 AND ABOUT 20% BY WEIGHT OF CLAY, BETWEEN ABOUT 2.5 AND ABOUT 5% BY WEIGHT OF WATER, AND BETWEEN ABOUT 0.5 AND ABOUT 4% BY WEIGHT OF A CARBONACEOUS MATERIAL CONSISTING ESSENTIALLY OF LIGNITE, AN AQUEOUS EMULSION OF ASPHALTIC PITCH HAVING A MELTING POINT ABOVE ABOUT 150*F. AND A CARBONACEOUS SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF WOOD FLOUR, COKE BREEZE AND MIXTURES THEREOF, THE PROPORTION OF SAID CARBONACEOUS SUBSTANCE IN SAID MIXTURE BEING UP TO ABOUT 35% BY WEIGHT OF THE LIGNITE, THE WEIGHT RATIO OF SAID AQUEOUS EMULSION TO SAID LIGNITE AND SAID CARBONACEOUS SUBSTANCE BEING BETWEEN ABOUT 1:1 AND ABOUT 2.5:1 AND THE WEIGHT RATIO OF ASPHALTIC PITCH SOLIDS TO LIGNITE AND CARBONACEOUS SUBSTANCE BEING BETWEEN ABOUT 0.6:1 AND ABOUT 1.46:1.
References Cited (Backward Citations)
US2558402A
Cited
US2686727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |