Patent US3180967A successfully refreshed from Google Patents.
US3180967A
Expired / Lapsed
US
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Gas lens shielded arc torch
Assignee: Union Carbide Corp
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Filing: 1963-01-18
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Granted: 1965-04-27
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Expires: 1983-01-18
Abstract
No abstract record available.
Inventors
- 👤 Clifford W Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:25
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
IN A GAS SHIELDED ARC TORCH HAVING A BODY, MEANS FOR SUPPORTING AN ELECTRODE IN SAID BODY AND A GAS DIRECTING NOZZLE SURROUNDING THE LOWER PORTION OF SAID ELECTRODE AND HAVING A DISCHARGE ORIFICE, MEANS FOR SUPPLYING ELECTRIC CURRENT TO SAID ELECTRODE, SAID BODY HAVING AN INNER PASSAGE FOR SHIELDING GAS WITH OUTLETS TO SAID NOZZLE, THE COMBINATION THEREWITH OF AN ANNULAR GAS LENS MOUNTED INSIDE SAID NOZZLE SURROUNDING THE ELECTRODE BELOW SAID OUTLETS AND ABOVE THE DISCHARGE ORIFICE OF SAID NOZZLE, SAID LENS COMPRISING SUPERIMPOSED WIRE SCREENS HAVING ALIGNED CENTRAL APERTURES THROUGH WHICH SAID ELECTRODE PASSES, AN IN NER RETAINING SLEEVE PASSING THROUGH ALL OF SAID APERTURES, AND AN OUTER RETAINING SLEEVE RECEIVING THE PERIPHERIES OF SAID SCREENS AND CO-OPERATING WITH SAID INNER SLEEVE TO HOLD SAID SCREENS TOGETHER TO FORM A REMOVABLE PACKAGE THEREOF.
Claim 2
Dependent Claim
136 words
IN A GAS SHIELDED ARC TORCH HAVING A BODY, MEANS FOR SUPPORTING AN ELECTRODE IN SAID BODY AND A GAS DIRECTING NOZZLE SURROUNDING THE LOWER PORTION OF SAID ELECTRODE AND HAVING A DISCHARGE ORIFICE, MEANS FOR SUPPLYING ELECTRIC CURRENT TO SAID ELECTRODE, SAID BODY HAVING AN INNER PASSAGE FOR SHIELDING GAS WITH OUTLETS TO SAID NOZZLE, THE COMBINATION THEREWITH OF AN ANNULAR GAS LENS MOUNTED INSIDE SAID NOZZLE SURROUNDING THE ELECTRODE BELOW SAID OUTLETS AND ABOVE THE DISCHARGE ORIFICE OF SAID NOZZLE, SAID LENS COMPRISING SUPERIMPOSED WIRE SCREENS HAVING ALIGNED CENTRAL APERTURES THROUGH WHICH SAID ELECTRODE PASSES, AN IN NER RETAINING SLEEVE PASSING THROUGH ALL OF SAID APERTURES, AND AN OUTER RETAINING SLEEVE RECEIVING THE PERIPHERIES OF SAID SCREENS AND CO-OPERATING WITH SAID INNER SLEEVE TO HOLD SAID SCREENS TOGETHER TO FORM A REMOVABLE PACKAGE THEREOF.
References Cited (Backward Citations)
US1641350A
Cited
US3053968A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-26 | 1968-10-26 | 1969-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-26 | 1972-10-26 | 1973-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-26 | 1976-10-26 | 1977-04-27 | $7700.00 | Window Closed / Lapsed |