US2695230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making powdered metal article
Assignee: MICHIGAN POWDERED METAL PRODUC
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Filing: 1949-01-10
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Granted: 1954-11-23
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Expires: 1969-01-10
Abstract
No abstract record available.
Inventors
- 👤 Haller John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:51
CPC Classifications
F; F16; F16G; F16G1/00; F16G1/22; B; B22; B22F; B22F3/00; B22F5/00; B22F5/10; B22F2005/004; B22F2005/103; Y; Y10; Y10S; Y10S425/00; Y10S425/012
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
154 words
A PROCESS OF INTERNALLY INFILTRATING A POWDERED METAL ARTICLE WITH A STRENGTHENING METAL WITHOUT PRODUCING SURFACE EROSION OF SAID ARTICLE AND SIMULTANEOUSLY FORMING AN INTERNAL CAVITY OF PREDETRMINED SHAPE THEREIN, SAID PROCESS COMPRISING FORMING AN INSERT OF PREDETERMINED SHAPE AND DIMENSIONS, EMBEDDING SAID INSERT IN A MASS OF POWDERED METAL, SAID INERT BEING FORMED OF METAL INFILTRATABLE INTO THE BORES OF SAID POWDERED METAL, THE SHAPE AND DIMENSIONS OF SAID INSERT CORRESPONDING TO THE SHAPE AND DIMENSIONS DESIRED FOR SAID CAVITY, COMPRESSING THE MASS OF METAL CONTAINING THE INSERT INTO A BODY OF DESIRED SHAPE, SINTERING THE INSERT-CONTAINING BODY AT A SINTERING TEMPERATURE ABOVE THE MELTING POINT OF SAID INERT AND BELOW THE MELTING POINT OF SAID POWDERED METAL AND EFFECTING INFILTRATION OF SUBSTANTIALLY ALL OF SAID INSERT METAL INTO SAID BODY WHEREBY TO LEAVE A CAVITY IN SAID BODY CORRESPONDING IN SHAPE AND DIMENSIONS TO THE ORIGINAL SHAPE AND DIMENSIONS OF SAID INSERT.
Claim 2
Dependent Claim
154 words
A PROCESS OF INTERNALLY INFILTRATING A POWDERED METAL ARTICLE WITH A STRENGTHENING METAL WITHOUT PRODUCING SURFACE EROSION OF SAID ARTICLE AND SIMULTANEOUSLY FORMING AN INTERNAL CAVITY OF PREDETRMINED SHAPE THEREIN, SAID PROCESS COMPRISING FORMING AN INSERT OF PREDETERMINED SHAPE AND DIMENSIONS, EMBEDDING SAID INSERT IN A MASS OF POWDERED METAL, SAID INERT BEING FORMED OF METAL INFILTRATABLE INTO THE BORES OF SAID POWDERED METAL, THE SHAPE AND DIMENSIONS OF SAID INSERT CORRESPONDING TO THE SHAPE AND DIMENSIONS DESIRED FOR SAID CAVITY, COMPRESSING THE MASS OF METAL CONTAINING THE INSERT INTO A BODY OF DESIRED SHAPE, SINTERING THE INSERT-CONTAINING BODY AT A SINTERING TEMPERATURE ABOVE THE MELTING POINT OF SAID INERT AND BELOW THE MELTING POINT OF SAID POWDERED METAL AND EFFECTING INFILTRATION OF SUBSTANTIALLY ALL OF SAID INSERT METAL INTO SAID BODY WHEREBY TO LEAVE A CAVITY IN SAID BODY CORRESPONDING IN SHAPE AND DIMENSIONS TO THE ORIGINAL SHAPE AND DIMENSIONS OF 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) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |