Patent US3214564A successfully refreshed from Google Patents.
US3214564A
Expired / Lapsed
US
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Method of joining metals
Assignee: Motors Liquidation Co
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Filing: 1963-05-27
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Granted: 1965-10-26
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Expires: 1983-05-27
Abstract
No abstract record available.
Inventors
- 👤 Albert E Katzer
- 👤 Robert O Houghtaling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:59
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B23K11/00; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49936; Y10T428/00; Y10T428/12; Y10T428/12014; Y10T428/1216; Y10T428/12444; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12771; Y10T428/12806; Y10T428/12826; Y10T428/12861; Y10T428/12903; Y10T428/12917; Y10T428/12924; Y10T428/12951; Y10T428/12972
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
A METHOD OF ELECTRICAL RESISTANCE WELDING RELATIVELY HIGH CONDUCTIVITY METALS COMPRISING THESTEPS OF; LOCATING THE INNER ADJACENT SURFACES TO BE JOINED IN OVERLAPPING SPACED RELATIONSHIP; PLACING A GAUZE MATERIAL BETWEEN THE OVERLAPPING SURFACES, SAID GAUZE MATERIAL INTRODUCING A PLURALITY OF CONTACT RESISTANCE POINTS HAVING A TOTAL RESISTANCE GREATER THAN THE NATURAL RESISTIVITY OF THE METALS BEING JOINED DUE TO ITS INTERWOVEN CONSTRUCTION; MOVING THE SURFACES INTO ELECTRICAL CONDUCTIVE CONTACT WITH SAID RESISTANCE POINTS; CAUSING AN ELECTRIC CURRENT TO FLOW THROUGH THE RESISTANCE POINTS WHICH CONCENTRATE THE HEATING EFFECT LOCALLY FUSING THE SURFACES BUT NOT THE GAUZE MATERIAL; AND APPLYING PRESSURE TO FORCE THE MOLTEN METAL OF THE SURFACES THROUGH THE INTERWOVEN CONSTRUCTION OF THE GAUZE TO FORM A WELD UPON SOLIDIFICATION.
Claim 2
Independent Claim
121 words
A METHOD OF ELECTRICAL RESISTANCE WELDING RELATIVELY HIGH CONDUCTIVITY METALS COMPRISING THESTEPS OF; LOCATING THE INNER ADJACENT SURFACES TO BE JOINED IN OVERLAPPING SPACED RELATIONSHIP; PLACING A GAUZE MATERIAL BETWEEN THE OVERLAPPING SURFACES, SAID GAUZE MATERIAL INTRODUCING A PLURALITY OF CONTACT RESISTANCE POINTS HAVING A TOTAL RESISTANCE GREATER THAN THE NATURAL RESISTIVITY OF THE METALS BEING JOINED DUE TO ITS INTERWOVEN CONSTRUCTION; MOVING THE SURFACES INTO ELECTRICAL CONDUCTIVE CONTACT WITH SAID RESISTANCE POINTS; CAUSING AN ELECTRIC CURRENT TO FLOW THROUGH THE RESISTANCE POINTS WHICH CONCENTRATE THE HEATING EFFECT LOCALLY FUSING THE SURFACES BUT NOT THE GAUZE MATERIAL; AND APPLYING PRESSURE TO FORCE THE MOLTEN METAL OF THE SURFACES THROUGH THE INTERWOVEN CONSTRUCTION OF THE GAUZE TO FORM A WELD UPON SOLIDIFICATION.
References Cited (Backward Citations)
GB190924958A
Cited
US1509384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |