US3285756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold or core composition for metal casting purposes
Assignee: Mo och Domsjo AB
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Filing: 1963-04-29
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Granted: 1966-11-15
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Expires: 1983-04-29
Abstract
No abstract record available.
Inventors
- 👤 Moren Rolf Erhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:43
CPC Classifications
B; B22; B22C; B22C1/00; B22C1/16; B22C1/20; B22C1/26; B22C1/167; B22C1/18; B22C1/181
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
93 words
A BINDER COMPOSITION FOR USE IN FORMING MOLD MEMBERS FOR METAL CASTING, AND BASED UPON A GLUCOSE AS THE BINDER, CONSISTING ESSENTIALLY OF GLUCOSE AND CALCIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CALCIUM OXIDE, CALCIUM HYDROXIDE, AND MIXTURES OF CALCIUM SALT AND AN ALKALI METAL HYDROXIDE FORMING CALCIUM HYDROXIDE IN WATER IN AN AMOUNT OF PROVIDE FROM ABOUT 5% TO ABOUT 25% CALCIUM HYDROXIDE BY WEIGHT OF THE GLUCOSE, THE CALCIUM COMPOUND BEING IN AN AMOUNT TO REACT WITH THE GLUCOSE TO HARDEN THE COMPOSITION IN THE PRESENCE OF WATER AND SAND.
Claim 2
Dependent Claim
93 words
A BINDER COMPOSITION FOR USE IN FORMING MOLD MEMBERS FOR METAL CASTING, AND BASED UPON A GLUCOSE AS THE BINDER, CONSISTING ESSENTIALLY OF GLUCOSE AND CALCIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CALCIUM OXIDE, CALCIUM HYDROXIDE, AND MIXTURES OF CALCIUM SALT AND AN ALKALI METAL HYDROXIDE FORMING CALCIUM HYDROXIDE IN WATER IN AN AMOUNT OF PROVIDE FROM ABOUT 5% TO ABOUT 25% CALCIUM HYDROXIDE BY WEIGHT OF THE GLUCOSE, THE CALCIUM COMPOUND BEING IN AN AMOUNT TO REACT WITH THE GLUCOSE TO HARDEN THE COMPOSITION IN THE PRESENCE OF WATER AND SAND.
Claim 3
Dependent Claim
97 words
A MOLD MEMBER COMPOSITION BASED UPON A GLUCOSE AS A BINDER, CONSISTING ESSENTIALLY OF SAND, WATER, FROM ABOUT 0.1 TO ABOUT 8% OF A GLUCOSE, AND A CALCIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CALCIUM OXIDE, CALCIUM HYDROXIDE, AND MIXTURES OF CALCIUM SALT AND AN ALKALI METAL HYDROXIDE FORMING CALCIUM HYDROXIDE IN WATER IN AN AMOUNT TO PROVIDE FROM ABOUT 10% TO ABOUT 25% CALCIUM HYDROXIDE BY WEIGHT OF THE GLUCOSE, THE AMOUNT OF CALCIUM COMPOUND BEING SUFFICIENT TO REACT WITH THE GLUCOSE TO HARDEN THE COMPOSITION AND BOND THE SAND TO FORM THE MOLD MEMBER.
Claim 4
Dependent Claim
97 words
A MOLD MEMBER COMPOSITION BASED UPON A GLUCOSE AS A BINDER, CONSISTING ESSENTIALLY OF SAND, WATER, FROM ABOUT 0.1 TO ABOUT 8% OF A GLUCOSE, AND A CALCIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CALCIUM OXIDE, CALCIUM HYDROXIDE, AND MIXTURES OF CALCIUM SALT AND AN ALKALI METAL HYDROXIDE FORMING CALCIUM HYDROXIDE IN WATER IN AN AMOUNT TO PROVIDE FROM ABOUT 10% TO ABOUT 25% CALCIUM HYDROXIDE BY WEIGHT OF THE GLUCOSE, THE AMOUNT OF CALCIUM COMPOUND BEING SUFFICIENT TO REACT WITH THE GLUCOSE TO HARDEN THE COMPOSITION AND BOND THE SAND TO FORM THE MOLD MEMBER.
Claim 5
Independent Claim
110 words
A METHOD OF MAKING MOLD MEMBERS FOR USE FOR METAL CASTINGS AND BONDED TOGETHER BY A BINDER BASED UPON A GLUCOSE, WHICH COMPRISES FORMING INTO THE DESIRED MOLD SHAPE A MIX CONSISTING ESSENTIALLY OF SAND, WATER, FROM ABOUT 0.1 TO ABOUT 8% BY WEIGHT OF THE SAND OF A GLUCOSE, AND AN AMOUNT OF CALCIUM COMPOUND TO PROVIDE FROM ABOUT 10% TO 25% CALCIUM HYDROXIDE BY WEIGHT OF THE GLUCOSE TO HARDEN THE COMPOSITION IN THE PRESENCE OF THE WATER; AND REACTING SAID GLUCOSE WITH THE CALCIUM HYDROXIDE IN SITU TO FORM A CALCIUM HYDROXIDE-GLUCOSE REACTION PRODUCT IN AN AMOUNT SUFFICIENT TO BOND THE SAND AND FORM THE MOLD MEMBER.
Claim 6
Independent Claim
110 words
A METHOD OF MAKING MOLD MEMBERS FOR USE FOR METAL CASTINGS AND BONDED TOGETHER BY A BINDER BASED UPON A GLUCOSE, WHICH COMPRISES FORMING INTO THE DESIRED MOLD SHAPE A MIX CONSISTING ESSENTIALLY OF SAND, WATER, FROM ABOUT 0.1 TO ABOUT 8% BY WEIGHT OF THE SAND OF A GLUCOSE, AND AN AMOUNT OF CALCIUM COMPOUND TO PROVIDE FROM ABOUT 10% TO 25% CALCIUM HYDROXIDE BY WEIGHT OF THE GLUCOSE TO HARDEN THE COMPOSITION IN THE PRESENCE OF THE WATER; AND REACTING SAID GLUCOSE WITH THE CALCIUM HYDROXIDE IN SITU TO FORM A CALCIUM HYDROXIDE-GLUCOSE REACTION PRODUCT IN AN AMOUNT SUFFICIENT TO BOND THE SAND AND FORM THE MOLD MEMBER.
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) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |