Patent US3179523A successfully refreshed from Google Patents.
US3179523A
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Methods of making foundry cores and moulds
Assignee: Mo och Domsjo AB
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Filing: 1961-11-15
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Granted: 1965-04-20
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Expires: 1981-11-15
Abstract
No abstract record available.
Inventors
- 👤 Moren Rolf Erhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:44
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/16; B22C1/167; C; C04; C04B; C04B28/00; C04B28/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A METHOD OF MAKING FOUNDARD SAND MOLD MEMBERS, WHICH COMPRISES (1) PREPARING A MIXTURE CONSISTING ESSENTIALLY OF SAND AN CEMENT-FORMING COMPONENTS SELECTED FROM THE GROUP CONSISTING OF ZINC OXYSALT CEMENTFORMING COMPOUNDS AND MAGNESIUM OXYSALT CEMENT-FORMING COMPOUNDS IN AN AMOUNT OF 1 TO 15%, BASED ON THE WEIGHT OF THE SAND (2) WATER IN AN AMOUNT OF 1 TO 10%, BASED ON THE WEIGHT OF THE SAND AND (3) AN ORGANIC BINDER SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE POLYSACCHARIDES AND WATER-SOLUBLE POLYSACCHARIDE DERIVATIVES IN AN AMOUNT OF 0.2 TO 10%, BASED ON THE WEIGHT OF THE SAND, FORMING AND MOLD MEMBERS FROM THE RESULTING MIXTURE AND HARDENING SAID MOLD MEMBERS.
Claim 2
Independent Claim
110 words
A METHOD OF MAKING FOUNDARD SAND MOLD MEMBERS, WHICH COMPRISES (1) PREPARING A MIXTURE CONSISTING ESSENTIALLY OF SAND AN CEMENT-FORMING COMPONENTS SELECTED FROM THE GROUP CONSISTING OF ZINC OXYSALT CEMENTFORMING COMPOUNDS AND MAGNESIUM OXYSALT CEMENT-FORMING COMPOUNDS IN AN AMOUNT OF 1 TO 15%, BASED ON THE WEIGHT OF THE SAND (2) WATER IN AN AMOUNT OF 1 TO 10%, BASED ON THE WEIGHT OF THE SAND AND (3) AN ORGANIC BINDER SELECTED FROM THE GROUP CONSISTING OF WATER-SOLUBLE POLYSACCHARIDES AND WATER-SOLUBLE POLYSACCHARIDE DERIVATIVES IN AN AMOUNT OF 0.2 TO 10%, BASED ON THE WEIGHT OF THE SAND, FORMING AND MOLD MEMBERS FROM THE RESULTING MIXTURE AND HARDENING SAID MOLD MEMBERS.
References Cited (Backward Citations)
US1962764A
Cited
US2243094A
Cited
US2869194A
Cited
US2913787A
Cited
GB834876A
Cited
US2987789A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |