Patent US3071748A successfully refreshed from Google Patents.
US3071748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical resistance element
Assignee: Individual
•
Filing: 1960-02-02
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Granted: 1963-01-01
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Expires: 1980-02-02
Abstract
No abstract record available.
Inventors
- 👤 Louis V Lucia
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:07
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/40; H05B3/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AN ELECTRICAL RESISTANCE ELEMENT CONSTRUCTED OF A SERIES OF IDENTICAL INSULATING TUBES OF REFRACTORY MATERIAL DISPOSED END TO END AND HAVING THEREIN A PLURALITY OF ALIGNED PARALLEL HOLES RUNNING LENGTHWISE THERETHROUGH, AN ELECTRICAL RESISTANCE COIL CONTAINED IN SAID HOLES, A PAIR OF LEAD WIRES CONNECTED TO THE ENDS OF RESISTANCE COIL AND EXTENDING FROM AN END OF SAID SERIES, THE CONNECTIONS FOR SAID LEAD WIRES BEING CONTAINED WITHIN SAID HOLES, AND A BUSHING OF INSULATING MATERIAL AT THE OUTER END OF THE SAID SERIES, THE SAID LEADS EXTENDING THROUGH AN AXIAL HOLE IN SAID BUSHING AND BEING BENT INTO SAID HOLE WHEREBY THE BENDS OF SAID LEADS ABUT THE EDGES OF THE HOLES IN THE END TUBE OF SAID SERIES AND SECURE THE RESISTANCE COIL AGAINST LENGTHWISE MOVEMENT WITHIN SAID TUBES.
Claim 2
Dependent Claim
131 words
AN ELECTRICAL RESISTANCE ELEMENT CONSTRUCTED OF A SERIES OF IDENTICAL INSULATING TUBES OF REFRACTORY MATERIAL DISPOSED END TO END AND HAVING THEREIN A PLURALITY OF ALIGNED PARALLEL HOLES RUNNING LENGTHWISE THERETHROUGH, AN ELECTRICAL RESISTANCE COIL CONTAINED IN SAID HOLES, A PAIR OF LEAD WIRES CONNECTED TO THE ENDS OF RESISTANCE COIL AND EXTENDING FROM AN END OF SAID SERIES, THE CONNECTIONS FOR SAID LEAD WIRES BEING CONTAINED WITHIN SAID HOLES, AND A BUSHING OF INSULATING MATERIAL AT THE OUTER END OF THE SAID SERIES, THE SAID LEADS EXTENDING THROUGH AN AXIAL HOLE IN SAID BUSHING AND BEING BENT INTO SAID HOLE WHEREBY THE BENDS OF SAID LEADS ABUT THE EDGES OF THE HOLES IN THE END TUBE OF SAID SERIES AND SECURE THE RESISTANCE COIL AGAINST LENGTHWISE MOVEMENT WITHIN SAID TUBES.
References Cited (Backward Citations)
US1238124A
Cited
US1490242A
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US1432435A
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US1905232A
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US1828635A
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US2851571A
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US2878355A
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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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |