Patent US2614948A successfully refreshed from Google Patents.
US2614948A
Expired / Lapsed
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Producing modified machine elements
Assignee: Individual
•
Filing: 1947-03-27
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Granted: 1952-10-21
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Expires: 1967-03-27
Abstract
No abstract record available.
Inventors
- 👤 Michael W Freeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:07
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
THE METHOD OF IMPROVING THE LOAD CAPACITY OF FABRICATED MACHINE ELEMENTS IN CONDITION WITHOUT FURTHER METAL WORKING FOR USE UNDER EXTREME PRESSURE CONDITIONS NORMALLY CAUSING WEARING, SCORING AND SCUFFING, WHICH METHOD CONSISTS IN CHEMICALLY TREATING SAID MACHINE ELEMENTS IN A TREATING MEDIUM CONSISTING OF A PHORPHOROUS SULFIDE AS THE ESSENTIAL TREATING AGENT IN A CAUSTIC SODA SOLUTION AT A TEMPERATURE FROM 150 TO 400* F. FOR A PERIOD OF FROM TWO MINUTES TO SIX HOURS TO MODIFY THE WEARING PRESSURE SURFACES OF THE ELEMENT IN SITU MAKING IT CAPABLE OF WITHSTANDING EXTREME PRESSURES AND LOADS.
Claim 2
Independent Claim
95 words
THE METHOD OF IMPROVING THE LOAD CAPACITY OF FABRICATED MACHINE ELEMENTS IN CONDITION WITHOUT FURTHER METAL WORKING FOR USE UNDER EXTREME PRESSURE CONDITIONS NORMALLY CAUSING WEARING, SCORING AND SCUFFING, WHICH METHOD CONSISTS IN CHEMICALLY TREATING SAID MACHINE ELEMENTS IN A TREATING MEDIUM CONSISTING OF A PHORPHOROUS SULFIDE AS THE ESSENTIAL TREATING AGENT IN A CAUSTIC SODA SOLUTION AT A TEMPERATURE FROM 150 TO 400* F. FOR A PERIOD OF FROM TWO MINUTES TO SIX HOURS TO MODIFY THE WEARING PRESSURE SURFACES OF THE ELEMENT IN SITU MAKING IT CAPABLE OF WITHSTANDING EXTREME PRESSURES AND LOADS.
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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) | 1955-10-21 | 1956-04-21 | 1956-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-21 | 1960-04-21 | 1960-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-21 | 1964-04-21 | 1964-10-21 | $7700.00 | Window Closed / Lapsed |