US2756205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making tubing continuously by electrodeposition
Assignee: Individual
•
Filing: 1950-11-15
•
Granted: 1956-07-24
•
Expires: 1970-11-15
Abstract
No abstract record available.
Inventors
- 👤 Rosenqvist Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:52
CPC Classifications
C; C25; C25D; C25D1/00; C25D1/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
APPARATUS FOR SEALING LEAKAGE OF ELECTROLYTE AROUND A ROTATING CATHODE PROTRUDING THROUGH AN ORIFICE IN THE WALL OF A TANK FOR ELECTRODEPOSITION OF METAL, COMPRISING THE COMBINATION OF A SEAL ELEMENT EXTENDING RADIALLY FROM THE CATHODE TO OCCUPY THE FREE AREA OF THE ORIFICE AROUND THE CATHODE AND OBSTRUCT THE ORIFICE AGAINST SUBSTANTIAL LEAKAGE OF ELECTROLYTE, THE MARGINS OF THE TANK WALL SURROUNDING THE ORIFICE BEING FORMED AS ANNULAR PROTUBERANCES ENGAGING THE ELEMENT IN AN AXIAL DIRECTION, THE ELEMENT BEING ADEQUATELY SECURED TO THE CATHODE TO ROTATE THEREWITH AND BEING HELD AGAINST AXIAL MOVEMENT WITH THE CATHODE IN EITHER DIRECTION BY ABUTMENT AGAINST SAID PROTUBERANCES ON OPPOSITE SIDES THEROF, AND FLUID PRESSURE MEANS EXPANDING THE SEAL ELEMENT AXIALLY SUBSTANTIALLY TO EQUALIZE THE PRESSURE OF THE ELEMENT AGAINST SAID OPPOSITE PROTURBERANCES.
Claim 2
Dependent Claim
130 words
APPARATUS FOR SEALING LEAKAGE OF ELECTROLYTE AROUND A ROTATING CATHODE PROTRUDING THROUGH AN ORIFICE IN THE WALL OF A TANK FOR ELECTRODEPOSITION OF METAL, COMPRISING THE COMBINATION OF A SEAL ELEMENT EXTENDING RADIALLY FROM THE CATHODE TO OCCUPY THE FREE AREA OF THE ORIFICE AROUND THE CATHODE AND OBSTRUCT THE ORIFICE AGAINST SUBSTANTIAL LEAKAGE OF ELECTROLYTE, THE MARGINS OF THE TANK WALL SURROUNDING THE ORIFICE BEING FORMED AS ANNULAR PROTUBERANCES ENGAGING THE ELEMENT IN AN AXIAL DIRECTION, THE ELEMENT BEING ADEQUATELY SECURED TO THE CATHODE TO ROTATE THEREWITH AND BEING HELD AGAINST AXIAL MOVEMENT WITH THE CATHODE IN EITHER DIRECTION BY ABUTMENT AGAINST SAID PROTUBERANCES ON OPPOSITE SIDES THEROF, AND FLUID PRESSURE MEANS EXPANDING THE SEAL ELEMENT AXIALLY SUBSTANTIALLY TO EQUALIZE THE PRESSURE OF THE ELEMENT AGAINST SAID OPPOSITE PROTURBERANCES.
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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) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |