US3293401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of and apparatus for joining metal strip
Assignee: McKay Machine Co
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Filing: 1962-10-12
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Granted: 1966-12-20
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Expires: 1982-10-12
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Williams
- 👤 Francis A Bodenheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:10
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/08; B23K11/087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
227 words
THE METHOD OF JOINING A PAIR OF METAL STRIP ENDS TOGETHER IN END-TO-END RELATION WHICH COMPRISES MOVING A GUAGE BAR BETWEEN TWO PAIR OF CLAMPING JAWS, SHIFTING THE STRIP ENDS BETWEEN RESPECTIVE PAIR OF JAW PAIRS, ABUTMENT WITH RESPECTIVE OPPOSED SIDES OF THE GAUGE BAR, CLAMPING THE STRIP ENDS BETWEEN RESPECTIVE JAW PAIRS, WITHDRAWING SAID GAUGE BAR IN A DIRECTION EDGEWISE OF THE STRIP ENDS FROM BETWEEN SAID CLAMPING JAW PAIRS AND ALSO SHIFTING A CUTTING TOOL IN A DIRECTION EDGEWISE OF THE STRIP ENDS FROM ONE SIDE OF THE STRIP ENDS AND POSITIONING BOTH SAID BAR AND SAID TOOL ON THE OTHER SIDE OF THE STRIP ENDS AND IN SPACED RELATION THEREFROM, POSITIONING A SHIELD BETWEEN SAID CUTTING TOOL AND THE STRIP ENDS PASSING CURRENT BETWEEN THE STRIP ENDS TO RAISE THEM TO WELDING TEMPERATURE, RELATIVELY MOVING THE JAW PAIRS TOWARD EACH OTHER TO PRESS THE HEAT-SOFTENED STRIP ENDSS TOGETHER AND THEN HOLDING SAID PAIRS OF JAWS IMMOBILIZED WHILE THE HEAT-FUSED STRIP ENDS COOL AND HARDEN, SHIFTING SAID SHIELD FROM BETWEEN SAID CUTTING TOOL AND THE STRIPS ENDS, MOVING SAID CUTTING TOOL BETWEEN SAID IMMOBILIZED PAIRS OF JAWS AND ALONG THE LINE OF STRIP END JUNCTURE TO REMOVE TRANSVERSELY PROJECTING PORTIONS OF METAL UPSET BY MOVEMENT AFORESAID OF THE JAW PAIRS TOWARD EACH OTHER, AND OPENING SAD PAIRS OF JAWS TO RELEASE THE JOINED STRIP ENDS.
Claim 2
Independent Claim
227 words
THE METHOD OF JOINING A PAIR OF METAL STRIP ENDS TOGETHER IN END-TO-END RELATION WHICH COMPRISES MOVING A GUAGE BAR BETWEEN TWO PAIR OF CLAMPING JAWS, SHIFTING THE STRIP ENDS BETWEEN RESPECTIVE PAIR OF JAW PAIRS, ABUTMENT WITH RESPECTIVE OPPOSED SIDES OF THE GAUGE BAR, CLAMPING THE STRIP ENDS BETWEEN RESPECTIVE JAW PAIRS, WITHDRAWING SAID GAUGE BAR IN A DIRECTION EDGEWISE OF THE STRIP ENDS FROM BETWEEN SAID CLAMPING JAW PAIRS AND ALSO SHIFTING A CUTTING TOOL IN A DIRECTION EDGEWISE OF THE STRIP ENDS FROM ONE SIDE OF THE STRIP ENDS AND POSITIONING BOTH SAID BAR AND SAID TOOL ON THE OTHER SIDE OF THE STRIP ENDS AND IN SPACED RELATION THEREFROM, POSITIONING A SHIELD BETWEEN SAID CUTTING TOOL AND THE STRIP ENDS PASSING CURRENT BETWEEN THE STRIP ENDS TO RAISE THEM TO WELDING TEMPERATURE, RELATIVELY MOVING THE JAW PAIRS TOWARD EACH OTHER TO PRESS THE HEAT-SOFTENED STRIP ENDSS TOGETHER AND THEN HOLDING SAID PAIRS OF JAWS IMMOBILIZED WHILE THE HEAT-FUSED STRIP ENDS COOL AND HARDEN, SHIFTING SAID SHIELD FROM BETWEEN SAID CUTTING TOOL AND THE STRIPS ENDS, MOVING SAID CUTTING TOOL BETWEEN SAID IMMOBILIZED PAIRS OF JAWS AND ALONG THE LINE OF STRIP END JUNCTURE TO REMOVE TRANSVERSELY PROJECTING PORTIONS OF METAL UPSET BY MOVEMENT AFORESAID OF THE JAW PAIRS TOWARD EACH OTHER, AND OPENING SAD PAIRS OF JAWS TO RELEASE THE JOINED STRIP ENDS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |