Patent US2941935A successfully refreshed from Google Patents.
US2941935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathodic protection of metal containers for liquids
Assignee: Individual
•
Filing: 1958-10-31
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Granted: 1960-06-21
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Expires: 1978-10-31
Abstract
No abstract record available.
Inventors
- 👤 Walter L Miller
- 👤 Herman S Preiser
- 👤 Tudor Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:26
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F2213/00; C23F2213/20; C23F2213/21
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
205 words
A METALLIC HOLDER FOR LIQUIDS HAVING UNIFORM, EFFICIENT CATHODIC PROTECTION AGAINST CORROSION, BY ANY LIQUIDS CONTAINED THEREIN, OF ITS EXPOSED INTERIOR SURFACES, WHICH COMPRISES A METALLIC ENCLOSURE FOR SAID LIQUIDS OF THE SIZE OF CARGO TANKS OF SHIPS, AND HAVING ELECTROLYTIC ANODIC MATERIAL SUPPORTED BY SAID ENCLOSURE WITHIN IT AND SPACED SOMEWHAT ABOVE BUT IN PROXIMITY TO THE FLOOR OF THE ENCLOSURE OR ANY PROJECTING STRUCTURE JUST ABOVE THE FLOOR, SAID ENCLOSURE HAVING MATERIAL ON THAT PORTION OF ITS FLOOR AND ANY SAID PROJECTING STRUCTURE WHICH LIES BENEATH SAID ANODIC MATERIAL AND HORIZONTALLY THEREFROM OVER ANY AREA UPON WHICH ANY OF SAID ANODIC MATERIAL MIGHT FALL IF DISLODGED FROM ITS SUPPORT, A COATING OF A DIELECTRIC MATERIAL THAT IS INERT AND IMPERVIOUS TO ANY LIQUIDS LIKELY TO BE PLACED IN SAID ENCLOSURE AND WHICH WHEN STRUCK BY ANY METAL FALLING THROUGH A DISTANCE EQUAL TO THE DEPTH OF THE ENCLOSURE WILL NOT CREATE SPARKS AND LEAVING AT LEAST 40% OF THE INNER SURFACE OF THE ENCLOSURE UNCOATED AND EXPOSED TO SAID LIQUIDS THAT MAY BE PLACED IN SAID ENCLOSURE, AND CIRCUITRY CONNECTING SAID ANODIC MATERIAL AND SAID ENCLOSURE TO FORM THEREWITH AN ELECTROCHEMICAL CELL WHEN ANY LIQUID PLACED IN SAID ENCLOSURE FUNCTIONS AS AN ELECTROLYTE
Claim 2
Dependent Claim
205 words
A METALLIC HOLDER FOR LIQUIDS HAVING UNIFORM, EFFICIENT CATHODIC PROTECTION AGAINST CORROSION, BY ANY LIQUIDS CONTAINED THEREIN, OF ITS EXPOSED INTERIOR SURFACES, WHICH COMPRISES A METALLIC ENCLOSURE FOR SAID LIQUIDS OF THE SIZE OF CARGO TANKS OF SHIPS, AND HAVING ELECTROLYTIC ANODIC MATERIAL SUPPORTED BY SAID ENCLOSURE WITHIN IT AND SPACED SOMEWHAT ABOVE BUT IN PROXIMITY TO THE FLOOR OF THE ENCLOSURE OR ANY PROJECTING STRUCTURE JUST ABOVE THE FLOOR, SAID ENCLOSURE HAVING MATERIAL ON THAT PORTION OF ITS FLOOR AND ANY SAID PROJECTING STRUCTURE WHICH LIES BENEATH SAID ANODIC MATERIAL AND HORIZONTALLY THEREFROM OVER ANY AREA UPON WHICH ANY OF SAID ANODIC MATERIAL MIGHT FALL IF DISLODGED FROM ITS SUPPORT, A COATING OF A DIELECTRIC MATERIAL THAT IS INERT AND IMPERVIOUS TO ANY LIQUIDS LIKELY TO BE PLACED IN SAID ENCLOSURE AND WHICH WHEN STRUCK BY ANY METAL FALLING THROUGH A DISTANCE EQUAL TO THE DEPTH OF THE ENCLOSURE WILL NOT CREATE SPARKS AND LEAVING AT LEAST 40% OF THE INNER SURFACE OF THE ENCLOSURE UNCOATED AND EXPOSED TO SAID LIQUIDS THAT MAY BE PLACED IN SAID ENCLOSURE, AND CIRCUITRY CONNECTING SAID ANODIC MATERIAL AND SAID ENCLOSURE TO FORM THEREWITH AN ELECTROCHEMICAL CELL WHEN ANY LIQUID PLACED IN SAID ENCLOSURE FUNCTIONS AS AN ELECTROLYTE
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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |