US3657084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of mounting electrode
Assignee: Individual
•
Filing: 1969-12-03
•
Granted: 1972-04-18
•
Expires: 1989-12-03
Abstract
Abstract A method of cathodically protecting a ferrous metal object against corrosion in an electrolyte. A magnet of high dielectric ceramic material has a protecting electrode mounted thereon and is placed with the electrode thereon against the object to be protected with the magnet directly against the object. The electrode is electrically connected to the object to be protected through a path outside the magnet. The electrode is secured tightly to the object by the magnet and it also acts to electrically insulate the electrode from the object to be protected.
Inventors
- 👤 Ernst Beer
- 👤 Henri Bernard Beer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:09
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
33 words
A method as claimed in claim 1 in which the electrode is a sacrificial electrode and the sacrificial electrode is electrically connected to the object to be protected through a simple resistance circuit.
Claim 2
Dependent Claim
42 words
A method as claimed in claim 1 in which the connection of the protecting electrode to the object to be protected through a point outside of the means is through a source of electric potential for impressing a potential on the electrode.
Claim 3
Dependent Claim
64 words
A method as claimed in claim 1 further comprising covering all of the surfaces of said magnet other than the surface thereof which is to lie against the object to be protected with a synthetic electrolyte resistant material, and the step of placing the magnet on the object to be protected comprises placing said uncovered surface of the magnet in contact with the object.
References Cited (Backward Citations)
US2752308A
Cited
US2934485A
Cited
US2954257A
Cited
US3012959A
Cited
US3133873A
Cited
US3513082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |