US3295175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gasifiable feeder pattern with recess to compensate for compressive force of form material
Assignee: Full Mold Process Inc
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Filing: 1964-09-14
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Granted: 1967-01-03
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Expires: 1984-09-14
Abstract
No abstract record available.
Inventors
- 👤 Erich M Krzyzanowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:06
CPC Classifications
B; B22; B22C; B22C7/00; B22C7/02; B22C7/023; G; G01; G01S; G01S7/00; G01S7/02; G01S7/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
IN A CASTING ARRANGEMENT, IN COMBINATION, A PATTERN HAVING SUBSTANTIALLY THE CONFIGURATION OF AN ARTICLE TO BE CAST, SAID PATTERN HAVING AT LEAST ONE PROTRUDING MEMBER OF THE SAME MATERIAL AS THE PATTERN, AND HAVING A PREDETERMINED OUTER CONFIGURATION, A FEEDER HEAD PATTERN OF SUBSTANTIALLY SPHERICAL CONFIGURATION AND CONSISTING OF A CELLULAR MATERIAL WHICH IS COMPRESSIBLE AND IS GASIFIABLE AT THE TEMPERATURE OF THE MOLTEN CASTING CHARGE, AND SAID FEEDER HEAD PATTERN BEING FORMED WITH A RECESS OF SUBSTANTIALLY THE SAME CONFIGURATION AS THE PROTRUDING MEMBER BUT OF SLIGHTLY GREATER DIMENSIONS WITH THE OUTER EDGE OF SAID RECESS DEFINING A THIN WALL RING-TYPE CONTACTING SURFACE FOR ENGAGEMENT WITH SAID PATTERN, WHEREBY ON SUBJECTING SAID FEEDER HEAD AND PATTERN TO COMPRESSIVE FORCES THE MATERIAL FORMING THE RING TYPE CONTACTING SURFACE WILL BE PERMANENTLY DEFORMED.
Claim 2
Dependent Claim
133 words
IN A CASTING ARRANGEMENT, IN COMBINATION, A PATTERN HAVING SUBSTANTIALLY THE CONFIGURATION OF AN ARTICLE TO BE CAST, SAID PATTERN HAVING AT LEAST ONE PROTRUDING MEMBER OF THE SAME MATERIAL AS THE PATTERN, AND HAVING A PREDETERMINED OUTER CONFIGURATION, A FEEDER HEAD PATTERN OF SUBSTANTIALLY SPHERICAL CONFIGURATION AND CONSISTING OF A CELLULAR MATERIAL WHICH IS COMPRESSIBLE AND IS GASIFIABLE AT THE TEMPERATURE OF THE MOLTEN CASTING CHARGE, AND SAID FEEDER HEAD PATTERN BEING FORMED WITH A RECESS OF SUBSTANTIALLY THE SAME CONFIGURATION AS THE PROTRUDING MEMBER BUT OF SLIGHTLY GREATER DIMENSIONS WITH THE OUTER EDGE OF SAID RECESS DEFINING A THIN WALL RING-TYPE CONTACTING SURFACE FOR ENGAGEMENT WITH SAID PATTERN, WHEREBY ON SUBJECTING SAID FEEDER HEAD AND PATTERN TO COMPRESSIVE FORCES THE MATERIAL FORMING THE RING TYPE CONTACTING SURFACE WILL BE PERMANENTLY DEFORMED.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |