US3130461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling passages in cast aluminum cylinder heads and blocks
Assignee: Motors Liquidation Co
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Filing: 1961-08-01
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Granted: 1964-04-28
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Expires: 1981-08-01
Abstract
No abstract record available.
Inventors
- 👤 Ferris V Curtis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:36
CPC Classifications
F; F02; F02F; F02F1/00; F02F1/24; F02F1/26; F02F1/36; F02F1/40; F02F2001/244; F02F2001/247; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/4927; Y10T29/49272
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A METHOD OF CASTING AN ALUMINUM INTERNAL COMBUSTION ENGINE COMPONENT COMPRISING THE STEPS OF POSITIONING A PERMANENT CORE WITHIN A MOLD CAVITY, INSERTING A HOLLOW ALUMINUM ALLOY PREFORMED INSERT WITHIN SAID MOLD CAVITY, PLACING ALUMINUM ALLOY TUBULAR GAS PASSAGE LINERS UPON SAID PERMANENT CORE, CONNECTING FLUID INLET AND OUTLET MEANS TO SAID PREFORMED INSERT, POSITIONING AN UPPER MOLD PORTION UPON SAID MOLD CAVITY TO FORM A COMPLETE MOLD CAVITY, AND POURING A MOLTEN ALUMINUM ALLOY WITHIN SAID MOLD CAVITY WHEREBY AN ENGINE COMPONENT COMPRISIG AN INTEGRALLY BONDED HOLLOW PREFORMED INSERT AND GAS PASSAGE LINERS IS FORMED.
References Cited (Backward Citations)
US2190828A
Cited
US2225807A
Cited
US2331554A
Cited
US2463065A
Cited
US2504824A
Cited
US2781565A
Cited
US2763907A
Cited
US2711569A
Cited
US2858815A
Cited
US2941521A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |