Patent US1356756A successfully refreshed from Google Patents.
Patent US2813333A successfully refreshed from Google Patents.
US2813333A
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Method of uniting metals and pack for same
Assignee: Lukens Steel Co
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Filing: 1955-04-04
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Granted: 1957-11-19
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Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 Pompa Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:27
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/04; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12951; Y10T428/12958; Y10T428/12965; Y10T428/12972; Y10T428/12979
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A PACK FOR PRODUCING CLAD METAL HAVING DISSIMILAR THERMAL EXPANSION PROPERTIES A CARBON STEEL BASE PLATE, HAVING A NARROW GROOVE IN ITS UPPER FACE INWADLY FROM EACH EDGE AND ADJACENT THERETO, A CLADDING SHEET OF ALLOYY STEEL EXTENDING TO THE OUTER EDGE OF THE GROOVE AT ALL POINTS WHEREBY SAID GROOVE COMPENSATES FOR THE DIFFERENCE IN THERMAL EXPANSION OF THE METAL BASE PLATE AND STEEL ALLOY SHEET DURING THE HEATING AND ROLLING THEREOF OF SAID PACK, A FILLET OF WELDING METAL JOINING SAID SHEETT TO SAID PLATE ON ALL SIDES THEREOF.
Claim 2
Independent Claim
125 words
A METHOD OF PREPARING A PACK WHICH COMPRISES FORMING GROOVES ON THE UPPER FACE OF A CARBON STEEL BASE PLATE ADJACENT TO THE EDGES OF SAID BASE PLATE PLACING A SHEET OF ALLOY STEEL SMALLER THAN THE BASE PLATE ON TOP OF THE BASE PLATE WITH THE EDGES OF THE ALLOY STEEL SHEET EXTENDING OVER AND BEING SUBSTANTIALLY PARALLEL WITH SAID GROOVES ON THE BASE PLATE, SAID ALLOY STEEL SHEET BEING OF A SUBSTANTIALLY DIFFERENT COEFFICIENT OF EXPANSION THAN SAID CARBON STEEL BASE PLATE, SAID GROOVES OF SAIDD BASE PLATE PROVIDING YIELDABLE PORTIONS TO THEREBY COMPENSATE FOR DIFFERENCE IN THERMAL EXPANSION OF SAID BASE PLATE AND STEEL ALLOY SHEET, WELDINGG THE EDGES OF THE CLADDING SHEET TO THE PLATE, AND HEATING AND ROLLING THE PACK.
References Cited (Backward Citations)
US2423811A
Cited
US2718690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |