Patent US3015157A successfully refreshed from Google Patents.
US3015157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal fabrication
Assignee: Olin Corp
•
Filing: 1959-03-10
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Granted: 1962-01-02
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Expires: 1979-03-10
Abstract
No abstract record available.
Inventors
- 👤 Richard W Reynolds
- 👤 Wallace C Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:30
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; B21D53/045; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T29/49369
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A METHOD OF MAKING PRESSURE WELDED COMPOSITE STRUCTURES COMPRISING FORMING A PACK BY SUPERPOSING TWO CARBON STEEL SHEETS; HEATING SAID PACK TO A TEMPERATURE WITHIN THE RANGE FROM ABOUT 1400* F. TO ABOUT 1800* F., AND DEFORMING SAID PACK TO EFFECT A REDUCTION OF ABOUT 10% TO 28% IN THE CROSS-SECTIONAL AREA OF SAID PACK TO PRODUCE A SUBSTANTIALLY COMPLETE AND UNIFORM WELD ACROSS THE ADJACENT SURFACES OF SAID SHEETS BY PASSING SAID PACK BETWEEN ROLLS MAINTAINED AT A TEMPERATURE SUFFICIENTLY BELOW THE TEMPERATURE OF SAID PACK TO QUICKLY COOL THE EXTERIOR SURFACES OF SAID SHEETS TO A TEMPERATURE WHICH IS SUBATANTIALLY BELOW THE WELDING TEMPERATURE OF SAID SHEET WHILE MAINTAINING THE INNER SURFACES OF SAID SHEETS AT SAID WELDING TEMPERATURE SAID WELD BEING PRODUCED WITHOUT ANY FURTHER THERMAL OR PRESSURE TREATMENT.
Claim 2
Independent Claim
132 words
A METHOD OF MAKING PRESSURE WELDED COMPOSITE STRUCTURES COMPRISING FORMING A PACK BY SUPERPOSING TWO CARBON STEEL SHEETS; HEATING SAID PACK TO A TEMPERATURE WITHIN THE RANGE FROM ABOUT 1400* F. TO ABOUT 1800* F., AND DEFORMING SAID PACK TO EFFECT A REDUCTION OF ABOUT 10% TO 28% IN THE CROSS-SECTIONAL AREA OF SAID PACK TO PRODUCE A SUBSTANTIALLY COMPLETE AND UNIFORM WELD ACROSS THE ADJACENT SURFACES OF SAID SHEETS BY PASSING SAID PACK BETWEEN ROLLS MAINTAINED AT A TEMPERATURE SUFFICIENTLY BELOW THE TEMPERATURE OF SAID PACK TO QUICKLY COOL THE EXTERIOR SURFACES OF SAID SHEETS TO A TEMPERATURE WHICH IS SUBATANTIALLY BELOW THE WELDING TEMPERATURE OF SAID SHEET WHILE MAINTAINING THE INNER SURFACES OF SAID SHEETS AT SAID WELDING TEMPERATURE SAID WELD BEING PRODUCED WITHOUT ANY FURTHER THERMAL OR PRESSURE TREATMENT.
References Cited (Backward Citations)
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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) | 1965-01-01 | 1965-07-03 | 1966-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-01 | 1969-07-03 | 1970-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-01 | 1973-07-03 | 1974-01-02 | $7700.00 | Window Closed / Lapsed |