Patent US3189958A successfully refreshed from Google Patents.
US3189958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of bonding inserts into castings
Assignee: Trainer Associates Inc
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Filing: 1961-05-12
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Granted: 1965-06-22
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Expires: 1981-05-12
Abstract
No abstract record available.
Inventors
- 👤 Albert G Newbold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:41
CPC Classifications
B; B22; B22D; B22D19/00; B22D19/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A METHOD OF RETAINING AN INSERT OF REFRACTORY HARD CARBIDE MATERIAL WITHIN A METAL CASTING FORMED IN THE CAVITY OF A MOLD WHICH COMPRISES THE STEPS OF POSITIONING SAID INSERT WITHIN A FOAMED ORGANIC BODY DISPOSED WITHIN SAID CAVITY, ARRANGING SUITABLE VENTS WITHIN SAID MOLD TO PERMIT GAS TO BE EXPELLED IN FRONT OF ADVANCING MOLTEN METAL, POURING THE MOLTEN METAL INTO SAID MOLD, TEMPORARILY SHIELDING SAID INSERT FROM SAID ADVANCING MOLTEN METAL WITH SAID FOAMED BODY, DECOMPOSING SAID FOAMED BODY INTO A GAS WHICH IS COMPATIBLE WITH THE FORMATION OF A TIGHT INTIMATE BOND BETWEEN THE CAST MATERIAL AND SAID INSERT BY CONTACTING SAID FOAMED BODY WITH SAID MOLTEN METAL, AND HOLDING SAID INSERT IN POSITION WHILE IT IS CONTACTED AND BOUND INTO SAID MOLTEN METAL WHEREBY A TIGHT INTIMATE BOND IS FORMED BETWEEN THE CONTACTING SURFACES OF SAID INSERT AND SAID METAL WITHOUT CRACKING SAID INSERT.
Claim 2
Independent Claim
148 words
A METHOD OF RETAINING AN INSERT OF REFRACTORY HARD CARBIDE MATERIAL WITHIN A METAL CASTING FORMED IN THE CAVITY OF A MOLD WHICH COMPRISES THE STEPS OF POSITIONING SAID INSERT WITHIN A FOAMED ORGANIC BODY DISPOSED WITHIN SAID CAVITY, ARRANGING SUITABLE VENTS WITHIN SAID MOLD TO PERMIT GAS TO BE EXPELLED IN FRONT OF ADVANCING MOLTEN METAL, POURING THE MOLTEN METAL INTO SAID MOLD, TEMPORARILY SHIELDING SAID INSERT FROM SAID ADVANCING MOLTEN METAL WITH SAID FOAMED BODY, DECOMPOSING SAID FOAMED BODY INTO A GAS WHICH IS COMPATIBLE WITH THE FORMATION OF A TIGHT INTIMATE BOND BETWEEN THE CAST MATERIAL AND SAID INSERT BY CONTACTING SAID FOAMED BODY WITH SAID MOLTEN METAL, AND HOLDING SAID INSERT IN POSITION WHILE IT IS CONTACTED AND BOUND INTO SAID MOLTEN METAL WHEREBY A TIGHT INTIMATE BOND IS FORMED BETWEEN THE CONTACTING SURFACES OF SAID INSERT AND SAID METAL WITHOUT CRACKING SAID INSERT.
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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) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |