US3134893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for welding
Assignee: Commonwealth Engineering Company of Ohio
•
Filing: 1960-11-03
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Granted: 1964-05-26
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Expires: 1980-11-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry A Toulmin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:49
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/164
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
AN APPARATUS FOR WELDING WORKPIECES OF THE METAL ARC WELDING TYPE AND WHICH COMPRISES A CASING DEFINING A CHAMBER, AN OUTLET OPENING IN SUCH CASING COMMUNICATING WITH SAID CHAMBER, A WIRE METAL ELECTRODE SLIDABLY ARRANGED IN SAID CASING AND EXTENDING OUTWARD THROUGH SAID OUTLET OPENING AND TOWARD THE WORKPIECE TO BE WELDED, SAID ELECTRODE BEING CONNECTED TO A SOUCE OF ELECTRICAL ENERGY WHEREBY AN ELECTRICAL ARC IS PRODUCED BETWEEN THE OUTER END OF SAID ELECTRODE AND SAID WORKPIECE DURING WELDING, AND MEANS INCLUDING A CONDUIT CONNECTED TO SAID CASING AND COMMUNICATING WITH SAID CHAMBER INTRODUCING A GASEOUS HEAT-DECMPOSABLE METAL COMPOUND THEREINTO AND WHICH IS DISCHARGED THROUGH SAID OUTLET AND ABOUT THE ARC END OF SAID ELECTRODE, SAID METAL ELECTRODE BEING ELECTRICALLY INSULATED FROM SAID CASING AND
Claim 2
Independent Claim
126 words
AN APPARATUS FOR WELDING WORKPIECES OF THE METAL ARC WELDING TYPE AND WHICH COMPRISES A CASING DEFINING A CHAMBER, AN OUTLET OPENING IN SUCH CASING COMMUNICATING WITH SAID CHAMBER, A WIRE METAL ELECTRODE SLIDABLY ARRANGED IN SAID CASING AND EXTENDING OUTWARD THROUGH SAID OUTLET OPENING AND TOWARD THE WORKPIECE TO BE WELDED, SAID ELECTRODE BEING CONNECTED TO A SOUCE OF ELECTRICAL ENERGY WHEREBY AN ELECTRICAL ARC IS PRODUCED BETWEEN THE OUTER END OF SAID ELECTRODE AND SAID WORKPIECE DURING WELDING, AND MEANS INCLUDING A CONDUIT CONNECTED TO SAID CASING AND COMMUNICATING WITH SAID CHAMBER INTRODUCING A GASEOUS HEAT-DECMPOSABLE METAL COMPOUND THEREINTO AND WHICH IS DISCHARGED THROUGH SAID OUTLET AND ABOUT THE ARC END OF SAID ELECTRODE, SAID METAL ELECTRODE BEING ELECTRICALLY INSULATED FROM SAID CASING AND
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-26 | 1967-11-25 | 1968-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-26 | 1971-11-25 | 1972-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-26 | 1975-11-25 | 1976-05-26 | $7700.00 | Window Closed / Lapsed |