Patent US3093728A successfully refreshed from Google Patents.
US3093728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welding gun
Assignee: Westinghouse Electric Corp
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Filing: 1961-03-17
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Granted: 1963-06-11
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Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
- 👤 Floyd E Adamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:28
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/173
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A GUN FOR ARC WELDING WORK IN A SHIELD OF GAS COMPRISING A GUN BODY FROM WHICH A BARREL EXTENDS, SAID BARREL TERMINATING IN RESILIENT FINGERS, AND A GAS NOZZLE READILY REMOVABLY AND ADJUSTABLY SECURED BY SAID FINGERS, SAID NOZZLE EXTENDING INTERNALLY INTO SAID BARREL IN A DIRECTION UPSTREAM WITH RESPECT TO SAID GAS SO AS TO EXPAND OUTWARDLY WITH RESPECT TO SAID BARREL WHEN HEATED BY SAID ARC, SAID NOZZLE EXTENDING A SUBSTANTIAL DISTANCE BEYOND THE REGION ON SAID BARREL FROM WHICH SAID FINGERS EXTEND AND HUGGING THE CONTIGUOUS INTERNAL SURFACE OF SAID BARREL CLOSELY, SO AS TO SUPPRESS THE FLOW OF AIR INTO SAID GAS STREAM THROUGH THE SPACES BETWEEN SAID FINGERS.
Claim 2
Dependent Claim
114 words
A GUN FOR ARC WELDING WORK IN A SHIELD OF GAS COMPRISING A GUN BODY FROM WHICH A BARREL EXTENDS, SAID BARREL TERMINATING IN RESILIENT FINGERS, AND A GAS NOZZLE READILY REMOVABLY AND ADJUSTABLY SECURED BY SAID FINGERS, SAID NOZZLE EXTENDING INTERNALLY INTO SAID BARREL IN A DIRECTION UPSTREAM WITH RESPECT TO SAID GAS SO AS TO EXPAND OUTWARDLY WITH RESPECT TO SAID BARREL WHEN HEATED BY SAID ARC, SAID NOZZLE EXTENDING A SUBSTANTIAL DISTANCE BEYOND THE REGION ON SAID BARREL FROM WHICH SAID FINGERS EXTEND AND HUGGING THE CONTIGUOUS INTERNAL SURFACE OF SAID BARREL CLOSELY, SO AS TO SUPPRESS THE FLOW OF AIR INTO SAID GAS STREAM THROUGH THE SPACES BETWEEN SAID FINGERS.
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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |