Electrical contact for equipment used in the electrolytical production of metals,particularly copper
Abstract
Abstract AN ELECTRICAL CONTACT BETWEEN MOVING AND STATIONARY CONDUCTING ELEMENTS, IN PARTICULAR FOR EQUIPMENT USED IN THE ELECTROLYTICAL PRODUCTION OF METALS, SUCH AS COPPER IN FORM OF PLATES, WHICH ELIMINATES THE WEARING OF THE CONTACT POINTS, THE VOLTAGE DROPS, THE OVERHEATING OF THE MOVABLE CONTACT AND OTHER INCONVENIENCES. THIS CONTACT ESSENTIALLY COMPRISES A MERCURY BATH CONTAINED WITHIN A NUMBER OF BEADS OF FLEXIBLE AND ELECTRO-INSULATING MATERIAL, AND THE INSIDE FACE OF A METALLIC BELT ROTATABLY MOUNTED AROUND PULLEYS. IN THIS BATH IS IMMERSED A CONDUCTING BAR SPACED FROM SAID BELT BY MEANS OF PAWLS IN ANTI-FRICTION INSULATING MATERIAL IN ORDER TO PREVENT THE DIRECT CONTACT BETWEEN THE BAR AND THE ROTATING BELT.
Inventors
- 👤 Pietro B Di
Bibliographic Details
Claims Analysis
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |