US3170202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foundry process
Assignee: Individual
•
Filing: 1962-08-22
•
Granted: 1965-02-23
•
Expires: 1982-08-22
Abstract
No abstract record available.
Inventors
- 👤 Sr William J Huston
- 👤 Mott Arthur E De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:14
CPC Classifications
B; B22; B22C; B22C15/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49805; Y10T29/49806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
THE METHOD OF PREPARING A MOLD SAND RETAINING FLASK FOR CASTING, COMPRISING: PLACING A PATTERN MEMBER IN A FLASK, CLOSING THE BOTTOM OF SAID FLASK AND RAISING SAID FLASK INTO CLOSING POSITION RELATIVE TO THE OPEN END OF A COMBUSTION CHAMBER MEMBER, DROPPING A MEASURED LOAD OF MOLDING SAND THROUGH SAID COMBUSTION CHAMBER AND INTO SAID MOLDING FLASK, INTRODUCING AN EXPLOSIVE CHARGE INTO SAID COMBUSTION CHAMBER, IGNITING SAID EXPLOSIVE CHARGE, AND DIRECTING THE EXPLOSIVE WAVE FORCES AGAINST THE SAND IN SAID FLASK FOR PACKING SAID SAND ABOUT SAID PATTERN MEMBER.
Claim 2
Independent Claim
90 words
THE METHOD OF PREPARING A MOLD SAND RETAINING FLASK FOR CASTING, COMPRISING: PLACING A PATTERN MEMBER IN A FLASK, CLOSING THE BOTTOM OF SAID FLASK AND RAISING SAID FLASK INTO CLOSING POSITION RELATIVE TO THE OPEN END OF A COMBUSTION CHAMBER MEMBER, DROPPING A MEASURED LOAD OF MOLDING SAND THROUGH SAID COMBUSTION CHAMBER AND INTO SAID MOLDING FLASK, INTRODUCING AN EXPLOSIVE CHARGE INTO SAID COMBUSTION CHAMBER, IGNITING SAID EXPLOSIVE CHARGE, AND DIRECTING THE EXPLOSIVE WAVE FORCES AGAINST THE SAND IN SAID FLASK FOR PACKING SAID SAND ABOUT SAID PATTERN MEMBER.
References Cited (Backward Citations)
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Cited
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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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |