US2875073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core binder and process of making cores
Assignee: Corn Products Refining Co
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Filing: 1955-05-23
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Granted: 1959-02-24
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Expires: 1975-05-23
Abstract
No abstract record available.
Inventors
- 👤 Charles J Gogek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:06
CPC Classifications
C; C04; C04B; C04B26/00; B; B22; B22C; B22C1/00; B22C1/16; B22C1/167; B22C1/20; B22C1/22; B22C1/2293; B22C1/26; C04B28/00; C04B33/00; C04B33/02; C04B33/13; C04B33/1315; E; E04; E04B; E04B1/00; E04B1/62; E04B1/92; E04B1/94
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A PROCESS FOR PRODUCING A CORE FOR FOUNDRY USE WHICH COMPRISES MIXING 100 PARTS OF SAND, 0.25 TO 2 PARTS OF CEREAL BINDER, 0.5 TO 5 PARTS OF SUGAR AND FROM O.0002 TO 0.15 PART OF ADJUNCT PER PART OF SUGAR, AND SUFFICIENT WATER TO MULL THE RESULTANT MIXTURE, MOLDING SAID MIXTURE AND BAKING IT AT A TEMPERATURE OF AT LEAST 350* F; SAID SUGAR-ADJUNCT-BINDER CONTAINING FORM 1 TO 20 PARTS OF ADJUNCT; ALL PARTS BEING ON A WEIGHT BASIS; SAID ADJUNCT BEING SELECTED FROM THE GROUP CONSISTING OF HYDROCHLORIC ACID; SODIUM CHLORIDE; A MIXTURE CONSISTING OF 5 PARTS BY WEIGHT OF PARAFORMALDEHYDE AND 1 PART BY WEIGHT OF AMMONIUM CHLORIDE; BORIC ACID; SULFURIC ACID PHOSPHORIC ACID, AND SALTS WHICH PRODUCE SUCH ACIDS UNDER SAID BAKING CONDITIONS.
Claim 2
Dependent Claim
127 words
A PROCESS FOR PRODUCING A CORE FOR FOUNDRY USE WHICH COMPRISES MIXING 100 PARTS OF SAND, 0.25 TO 2 PARTS OF CEREAL BINDER, 0.5 TO 5 PARTS OF SUGAR AND FROM O.0002 TO 0.15 PART OF ADJUNCT PER PART OF SUGAR, AND SUFFICIENT WATER TO MULL THE RESULTANT MIXTURE, MOLDING SAID MIXTURE AND BAKING IT AT A TEMPERATURE OF AT LEAST 350* F; SAID SUGAR-ADJUNCT-BINDER CONTAINING FORM 1 TO 20 PARTS OF ADJUNCT; ALL PARTS BEING ON A WEIGHT BASIS; SAID ADJUNCT BEING SELECTED FROM THE GROUP CONSISTING OF HYDROCHLORIC ACID; SODIUM CHLORIDE; A MIXTURE CONSISTING OF 5 PARTS BY WEIGHT OF PARAFORMALDEHYDE AND 1 PART BY WEIGHT OF AMMONIUM CHLORIDE; BORIC ACID; SULFURIC ACID PHOSPHORIC ACID, AND SALTS WHICH PRODUCE SUCH ACIDS UNDER SAID BAKING CONDITIONS.
References Cited (Backward Citations)
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US1888441A
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US1938574A
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US2215825A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |