US3119925A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid conductor heating devices
Assignee: DUNHILL INTERNATIONAL Inc
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Filing: 1961-07-03
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Granted: 1964-01-28
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Expires: 1981-07-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Shomock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:56
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/24; A47J36/2411; A47J36/2433
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
151 words
A HEATING DEVICE FOR DIRECT RESISTANCE HEATING OF WATER COMPRISING A CONTAINER MADE OF A DIELECTRIC MATERIAL, A WELL IN THE BOTTOM OF SAID CONTAINER, A BOTTOM WALL IN SAID CONTAINER SLOPING DOWNWARDLY TOWARD SAID WELL, A FIRST TERMINAL POST EXTENDING THROUGH THE BOTTOM OF SAID WELL AND HAVING AN EXPOSED INSIDE SURFACE IN SAID WELL ADAPTED FOR CONNECTION TO AN ELECTRODE, A FIRST ELECTRODE ATTACHED TO SAID EXPOSED INSIDE SURFACE AND EXTENDING ADJACENT THE BOTTOM OF THE WELL, A SECOND TERMINAL POST EXTENDING THROUGH THE BOTTOM WALL OF SAID CONTAINER AND HAVING AN EXPOSED INSIDE SURFACE ABOVE THE BOTTOM OF SAID CONTAINER ADAPTED FOR CONNECTION TO AN ELECTRODE, AND A SECOND ELECTRODE ATTACHED TO SAID EXPOSED INSIDE SURFACE OF SAID SECOND TERMINAL POST, A MAJOR PORTION OF SAID SECOND ELECTRODE EXTENDING DOWNWARDLY FROM THE POINT OF ATTACHMENT TO THE TERMINAL POST, INTO THE WELL AND CLOSELY ADJACENT SAID FIRST ELECTRODE.
Claim 2
Dependent Claim
151 words
A HEATING DEVICE FOR DIRECT RESISTANCE HEATING OF WATER COMPRISING A CONTAINER MADE OF A DIELECTRIC MATERIAL, A WELL IN THE BOTTOM OF SAID CONTAINER, A BOTTOM WALL IN SAID CONTAINER SLOPING DOWNWARDLY TOWARD SAID WELL, A FIRST TERMINAL POST EXTENDING THROUGH THE BOTTOM OF SAID WELL AND HAVING AN EXPOSED INSIDE SURFACE IN SAID WELL ADAPTED FOR CONNECTION TO AN ELECTRODE, A FIRST ELECTRODE ATTACHED TO SAID EXPOSED INSIDE SURFACE AND EXTENDING ADJACENT THE BOTTOM OF THE WELL, A SECOND TERMINAL POST EXTENDING THROUGH THE BOTTOM WALL OF SAID CONTAINER AND HAVING AN EXPOSED INSIDE SURFACE ABOVE THE BOTTOM OF SAID CONTAINER ADAPTED FOR CONNECTION TO AN ELECTRODE, AND A SECOND ELECTRODE ATTACHED TO SAID EXPOSED INSIDE SURFACE OF SAID SECOND TERMINAL POST, A MAJOR PORTION OF SAID SECOND ELECTRODE EXTENDING DOWNWARDLY FROM THE POINT OF ATTACHMENT TO THE TERMINAL POST, INTO THE WELL AND CLOSELY ADJACENT SAID FIRST ELECTRODE.
References Cited (Backward Citations)
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Cited
US1175442A
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US1994206A
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US1945705A
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US1985623A
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US2843719A
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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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |