US2800709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making composite stock
Assignee: Kaiser Aluminum and Chemical Corp
•
Filing: 1952-08-22
•
Granted: 1957-07-30
•
Expires: 1972-08-22
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Gaul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:02
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/04; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/925; Y10S428/9335; Y10S428/94; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12729; Y10T428/12736
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A METHOD OF MAKING MULTI-LAYER METAL ASSEMBLIES FOR ROLLING FROM A PLURALITY OF LAYERS OF METALS OF DIFFERENT COMPOSITION WHEREIN AT LEAST TWO OF SAID LAYERS ARE OF SUBSTANTIALLY DIFFERENT THICKNESSES AND THE NATURE OF THE THINNER LAYER OF METAL IS SUCH THAT UPON ROLLING THE SAID THINNER LAYER SPREADS CONSIDERABLY RELATIVE TO THE THICKER LAYER COMPRISING THE STEPS OF ASSEMBLING SAID LAYERS OF METALS WHEREBY THE THICKER LAYER OF METAL EXTENDS BEYOND THE THINNER LAYER OF METAL, SAID LAYERS BEING SUPERTHE THICKER LAYER BY TACK WELDS ALONG THAT EDGE OF THE COMPOSITE BILLET WHICH ENTERS THE MILL ROLLS FIRST WITH ONE TACK WELD APPLIED ALONG THE TWO EDGES WHICH ARE 90 DEGREES TO THE ENTRY EDGE AND POSITIONED ADJACENT THERETO SUCH THAT THE MAJOR PORTION OF THE THINNER LAYER IS UNATTACHED TO THE THICKER LAYER AND IS FREE TO SPREAD OVER THE SURFACE OF THE THICKER LAYER.
Claim 2
Independent Claim
148 words
A METHOD OF MAKING MULTI-LAYER METAL ASSEMBLIES FOR ROLLING FROM A PLURALITY OF LAYERS OF METALS OF DIFFERENT COMPOSITION WHEREIN AT LEAST TWO OF SAID LAYERS ARE OF SUBSTANTIALLY DIFFERENT THICKNESSES AND THE NATURE OF THE THINNER LAYER OF METAL IS SUCH THAT UPON ROLLING THE SAID THINNER LAYER SPREADS CONSIDERABLY RELATIVE TO THE THICKER LAYER COMPRISING THE STEPS OF ASSEMBLING SAID LAYERS OF METALS WHEREBY THE THICKER LAYER OF METAL EXTENDS BEYOND THE THINNER LAYER OF METAL, SAID LAYERS BEING SUPERTHE THICKER LAYER BY TACK WELDS ALONG THAT EDGE OF THE COMPOSITE BILLET WHICH ENTERS THE MILL ROLLS FIRST WITH ONE TACK WELD APPLIED ALONG THE TWO EDGES WHICH ARE 90 DEGREES TO THE ENTRY EDGE AND POSITIONED ADJACENT THERETO SUCH THAT THE MAJOR PORTION OF THE THINNER LAYER IS UNATTACHED TO THE THICKER LAYER AND IS FREE TO SPREAD OVER THE SURFACE OF THE THICKER LAYER.
References Cited (Backward Citations)
US1975105A
Cited
CA481082A
Cited
US300730A
Cited
US959517A
Cited
US1667787A
Cited
US1792377A
Cited
US1956818A
Cited
GB407942A
Cited
US2017757A
Cited
US2064684A
Cited
US2354006A
Cited
US2395877A
Cited
US2366168A
Cited
US2366185A
Cited
US2423810A
Cited
US2468206A
Cited
US2539247A
Cited
US2473686A
Cited
GB628197A
Cited
GB690908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-29 | 1961-01-28 | 1961-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-29 | 1965-01-28 | 1965-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-29 | 1969-01-28 | 1969-07-30 | $7700.00 | Window Closed / Lapsed |