US3755105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum electrical contacts for use in electrolytic cells
Assignee: Individual
•
Filing: 1971-06-28
•
Granted: 1973-08-28
•
Expires: 1991-06-28
Abstract
Abstract Electrical contact is made between two electronic conductors by applying a vacuum on the spaces between the said electronic conductors, particularly useful when the conductors are made of different materials, and are used as mono and bipolar connectors in electrolysis cells, and method of making good electrical connections between two metals.
Inventors
- 👤 G Messner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:46
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/65; C25B11/00; C25B11/02; C25B11/033; C25B9/30; C25B9/303; C25B9/70
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
26 words
The electrolyzer of claim 1, in which one of said dissImilar metals is a ferrous metal and the other of said metals is a valve metal.
Claim 2
Dependent Claim
33 words
The bipolar electrolyzer of claim 1, in which at least one diaphragm is used between the active face of the cathode and the active face of the anode in the same cell unit.
Claim 3
Dependent Claim
50 words
The bipolar electrolyzer of claim 1, in which a plurality of anodes and cathodes are held in electrical contact with each other, the terminal anode is connected to the positive pole of a power source and the terminal cathode element is connected to the negative pole of the power source.
Claim 4
Dependent Claim
62 words
In a horizontal mercury cell comprising a conductive cell bottom, side walls, a mercury cathode flowing along the cell bottom, a cover and dimensionally stable anodes spaced a short distance from the mercury cathode and means for passing an electrolysis current through the cell, the improvement comprising a metal sheet on the cell bottom and held in electrical contact therewith by vacuum.
Claim 5
Dependent Claim
46 words
In the horizontal mercury cell of claim 5, the further improvement comprising a metal cover and a valve metal sheet on the inner side of said cover held in electrical contact therewith by a vacuum and the anodes being connected to the said valve metal sheet.
Claim 6
Dependent Claim
87 words
In a bipolar chlorate electrolyzer comprised of a plurality of cell units having a plurality of parallel, interleaved anodes attached to an anode plate and a plurality of cathodes leaves attached to a cathode plate and the anode plate of one cell unit in electrical contact with the cathode plate of the adjacent cell unit, the improvement comprising applying a vacuum to the contact surfaces of the anode plate of one cell unit and the cathode plate of the adjacent cell unit to obtain optimum electrical contact.
Claim 7
Dependent Claim
52 words
In a bipolar chlorate electrolyzer of claim 7, the added improvement comprising a layer of a deformable metal between the contact surfaces of the anode plate of one cell unit and the cathode plate of the adjacent cell unit whereby hydrogen migration from the cathode plate to the anode plate is prevented.
Claim 8
Dependent Claim
28 words
In the bipolar chlorate electrolyzer of claim 8, the deformable metal is selected from the group consisting of lead, copper, tin, zinc, cadmium and silver and alloys thereof.
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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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |