Patent US3448231A successfully refreshed from Google Patents.
US3448231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric circuit breaker arc chute with arc discharge filter
Assignee: General Electric Co
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Filing: 1966-11-14
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Granted: 1969-06-03
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Expires: 1986-11-14
Abstract
No abstract record available.
Inventors
- 👤 Eldon B Heft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:43
CPC Classifications
H; H01; H01H; H01H73/00; H01H73/02; H01H73/18; H01H33/00; H01H33/02; H01H33/53; H01H33/58; H01H9/00; H01H9/30; H01H9/34; H01H9/342
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
AN ELECTRIC CIRCUIT INTERRUPTER COMPRISING MEANS FOR ESTABLISHING AN ARC AND ARC DISCHARGE MUFFLE MEANS, SAID ARC DISCHARGE MUFFLE MEANS COMPRISING: (A) A FIRST HEAT EXCHANGE PORTION COMPRISING A PLURALITY OF RELATIVELY CLOSELY SPACED FLAT METALLIC PLATES EXTENDING PARALLEL TO EACH OTHER IN CLOSELY SPACED RELATION IN A ROW, EACH OF SAID PLATES EXTENDING PARALLEL TO THE DIRECTION OF FLOW OF GASES FROM SAID ARC WHEREBY SAID ARC GASES ARE CONSTRAINED TO PASS BETWEEN SAID PLATES IN CLOSE THERMAL CONTACT WITH ADJACENT SIDE SURFACES OF SAID PLATES; (B) A PLURALITY OF ARC DIFFUSER PLATE PORTIONS, SAID ARC DIFFUSER PORTIONS COMPRISING A SERIES OF FLAT SHEET METALLIC MEMBERS EXTENDING AT AN ANGLE TO SAID PLATE OF SAID FIRST HEAT EXCHANGE PORTION AND CLOSELY ADJACENT THE EXIT POINT FOR GASES PASSING BETWEEN SAID FIRST HEAT EXCHANGE PLATES WHEREBY GASES PASSING BETWEEN SAID HEAT EXCHANGE PLATES STRIKE SAID DIFFUSER PLATE MEMBERS AND ARE CAUSED TO ASSUME A TURBULENT CONDITION FOR INTERMIXING COOL PORTIONS OF SAID GAS WITH MORE HEATED PORTIONS THEREOF, AND
Claim 2
Dependent Claim
169 words
AN ELECTRIC CIRCUIT INTERRUPTER COMPRISING MEANS FOR ESTABLISHING AN ARC AND ARC DISCHARGE MUFFLE MEANS, SAID ARC DISCHARGE MUFFLE MEANS COMPRISING: (A) A FIRST HEAT EXCHANGE PORTION COMPRISING A PLURALITY OF RELATIVELY CLOSELY SPACED FLAT METALLIC PLATES EXTENDING PARALLEL TO EACH OTHER IN CLOSELY SPACED RELATION IN A ROW, EACH OF SAID PLATES EXTENDING PARALLEL TO THE DIRECTION OF FLOW OF GASES FROM SAID ARC WHEREBY SAID ARC GASES ARE CONSTRAINED TO PASS BETWEEN SAID PLATES IN CLOSE THERMAL CONTACT WITH ADJACENT SIDE SURFACES OF SAID PLATES; (B) A PLURALITY OF ARC DIFFUSER PLATE PORTIONS, SAID ARC DIFFUSER PORTIONS COMPRISING A SERIES OF FLAT SHEET METALLIC MEMBERS EXTENDING AT AN ANGLE TO SAID PLATE OF SAID FIRST HEAT EXCHANGE PORTION AND CLOSELY ADJACENT THE EXIT POINT FOR GASES PASSING BETWEEN SAID FIRST HEAT EXCHANGE PLATES WHEREBY GASES PASSING BETWEEN SAID HEAT EXCHANGE PLATES STRIKE SAID DIFFUSER PLATE MEMBERS AND ARE CAUSED TO ASSUME A TURBULENT CONDITION FOR INTERMIXING COOL PORTIONS OF SAID GAS WITH MORE HEATED PORTIONS THEREOF, AND
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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) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |