Patent US3421995A successfully refreshed from Google Patents.
US3421995A
Expired / Lapsed
US
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Means for preventing deformation and raising of baths for igneous electrolysis
Assignee: Pechiney SA
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Filing: 1966-06-09
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Granted: 1969-01-14
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Expires: 1986-06-09
Abstract
No abstract record available.
Inventors
- 👤 Paul Morel
- 👤 Jean-Pierre Givry
- 👤 Robert Scalliet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:05
CPC Classifications
C; C25; C25C; C25C3/00; C25C3/06; C25C3/08; A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61K8/28; A61Q; A61Q11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
MEANS FOR PREVENTING VERTICAL AND HORIZONTAL DEFORMATIONS DURING AGING OF A BATH FOR IGNEOUS ELECTROLYSIS IN WHICH THE BATHS ARE ALIGNED IN SIDE BY SIDE RELATION IN A SERIES WITH EACH BATH SURROUNDED BY A CASING HAVING VERTICALLY DISPOSED END AND SIDE WALLS, COMPRISING ANCHORING MEANS HAVING PORTIONS EMBEDDED IN THE GROUND IMMEDIATELY ADJACENT THE BATH AND FIXED TO THE CASING ABOUT THE BATH TO PREVENT THE BATH FROM BEING RAISED, BUTTRESSING MEANS ENGAGING THE SIDE WALLS OF THE CASING TO PREVENT HORIZONTAL DEFORMATIONS IN WHICH THE BUTTRESSING MEANS BETWEEN THE SIDE WALLS OF ADJACENT BATHS IN THE SERIES COMPRISES AT LEAST ONE THRUST BLOCK EXTENDING CROSSWISE BETWEEN THE ADJACENT SIDE WALLS OF THE CASINGS TO BRACE ONE AGAINST
Claim 2
Dependent Claim
119 words
MEANS FOR PREVENTING VERTICAL AND HORIZONTAL DEFORMATIONS DURING AGING OF A BATH FOR IGNEOUS ELECTROLYSIS IN WHICH THE BATHS ARE ALIGNED IN SIDE BY SIDE RELATION IN A SERIES WITH EACH BATH SURROUNDED BY A CASING HAVING VERTICALLY DISPOSED END AND SIDE WALLS, COMPRISING ANCHORING MEANS HAVING PORTIONS EMBEDDED IN THE GROUND IMMEDIATELY ADJACENT THE BATH AND FIXED TO THE CASING ABOUT THE BATH TO PREVENT THE BATH FROM BEING RAISED, BUTTRESSING MEANS ENGAGING THE SIDE WALLS OF THE CASING TO PREVENT HORIZONTAL DEFORMATIONS IN WHICH THE BUTTRESSING MEANS BETWEEN THE SIDE WALLS OF ADJACENT BATHS IN THE SERIES COMPRISES AT LEAST ONE THRUST BLOCK EXTENDING CROSSWISE BETWEEN THE ADJACENT SIDE WALLS OF THE CASINGS TO BRACE ONE AGAINST
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) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |