US3340596A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cold pressure welding of wires and the like
Assignee: ZF Active Safety US Inc
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Filing: 1964-09-11
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Granted: 1967-09-12
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Expires: 1984-09-11
Abstract
No abstract record available.
Inventors
- 👤 Walter J Rozmus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:22
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/02; B23K20/028; B23K2101/00; B23K2101/32; Y; Y10; Y10S; Y10S228/00; Y10S228/904
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A METHOD OF COLD PRESSURE WELDING THE ENDS OF WIRES AND THE LIKE WORKPIECES COMPRISING THE STEPS OF (1) GRIPPING THE END PORTIONS OF A PAIR OF WIRES BY DIE MEANS INWARDLY OF THE END FACES OF THE WIRES SO THAT THE END FACES OF SAID WIRES ARE IN ABUTTING RELATIONSHIP, (2) SUBJECTING THE BUTTED WIRES TO ENDWISE PRESSURE THROUGH SAID DIE MEANS, TO FORCE SAID END FACES TOGETHER AND TO CREATE AN INTERFACIAL METAL FLOW SUBSTANTIALLY RADIALLY OF THE WIRES AND TO THEREBY PRODUCE AN INITIAL RING-SHAPED UPSET FLASH BY THE DISPLACED METAL EXTENDING OUTWARDLY FROM THE WIRES, (3) DISPLACING, WHILE CONTINUING THE UPSET PRESSURE, THE METAL OF ONE HALF-SECTION OF SAID FLASH IN ONE DIRECTION AXIALLY OF SAID WIRES AND DISPLACING THE METAL OF THE OTHER HALF-SECTION OF SAID FLASH IN THE OPPOSITE AXIAL DIRECTION, AND (4) CONTINUING SAID PRESSURE UNTIL EFFECTING A COMPLETE AXIAL SEPARATION OF SAID FLASH SECTIONS AND JOINING OF SAID WIRES IN A SOLID-PHASE WELDING BOND AT AN INTERFACIAL AREA OF SUBSTANTIALLY S-SHAPED CONFIGURATION.
Claim 2
Independent Claim
170 words
A METHOD OF COLD PRESSURE WELDING THE ENDS OF WIRES AND THE LIKE WORKPIECES COMPRISING THE STEPS OF (1) GRIPPING THE END PORTIONS OF A PAIR OF WIRES BY DIE MEANS INWARDLY OF THE END FACES OF THE WIRES SO THAT THE END FACES OF SAID WIRES ARE IN ABUTTING RELATIONSHIP, (2) SUBJECTING THE BUTTED WIRES TO ENDWISE PRESSURE THROUGH SAID DIE MEANS, TO FORCE SAID END FACES TOGETHER AND TO CREATE AN INTERFACIAL METAL FLOW SUBSTANTIALLY RADIALLY OF THE WIRES AND TO THEREBY PRODUCE AN INITIAL RING-SHAPED UPSET FLASH BY THE DISPLACED METAL EXTENDING OUTWARDLY FROM THE WIRES, (3) DISPLACING, WHILE CONTINUING THE UPSET PRESSURE, THE METAL OF ONE HALF-SECTION OF SAID FLASH IN ONE DIRECTION AXIALLY OF SAID WIRES AND DISPLACING THE METAL OF THE OTHER HALF-SECTION OF SAID FLASH IN THE OPPOSITE AXIAL DIRECTION, AND (4) CONTINUING SAID PRESSURE UNTIL EFFECTING A COMPLETE AXIAL SEPARATION OF SAID FLASH SECTIONS AND JOINING OF SAID WIRES IN A SOLID-PHASE WELDING BOND AT AN INTERFACIAL AREA OF SUBSTANTIALLY S-SHAPED CONFIGURATION.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |