Patent US3457040A successfully refreshed from Google Patents.
Patent US4319977A successfully refreshed from Google Patents.
US4319977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-layer corrugated electrode
Assignee: IMI Kynoch Ltd
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Filing: 1980-04-23
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Granted: 1982-03-16
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Expires: 2000-04-23
Abstract
Abstract Electrode, particularly an anode, for use in electrometallurgical cells in which the electrode is formed of two very thin sheets of titanium which are corrugated and arranged in a mirror image position, being spot welded where they touch each other and being spot welded to a titanium sheathed hanger bar. The electrode, which is particularly suitable as an anode, can be formed from very thin titanium and has enhanced stiffness resulting from the corrugations which strengthen the overall construction.
Inventors
- 👤 John P. A. Wortley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:01
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
81 words
An electrode assembly comprising: an electrically conductive hanger bar having a longitudinal dimension; and an electrode formed of two continuous sheets of metal, at least one of the sheets being corrugated, the sheets being in face to face contact so as to form a series of parallel spaced-apart tubes and being joined together along their areas of contact, said electrode being joined to said hanger bar along the longitudinal dimension thereof such that said tubes extend perpendicularly to said longitudinal dimension.
Claim 2
Dependent Claim
81 words
An electrode assembly comprising: an electrically conductive hanger bar having a longitudinal dimension; and an electrode formed of two continuous sheets of metal, at least one of the sheets being corrugated, the sheets being in face to face contact so as to form a series of parallel spaced-apart tubes and being joined together along their areas of contact, said electrode being joined to said hanger bar along the longitudinal dimension thereof such that said tubes extend perpendicularly to said longitudinal dimension.
Claim 3
Dependent Claim
15 words
An electrode as claimed in claim 1 in which the sheets are formed of titanium.
Claim 4
Dependent Claim
16 words
An electrode as claimed in claim 1 or claim 2 in which both sheets are corrugated.
Claim 5
Dependent Claim
21 words
An electrode as claimed in claim 3 in which the sheets are mirror images of each other and are welded together.
Claim 6
Dependent Claim
33 words
An electrode as claimed in claim 1 in which the thickness of the sheets is in the range 1.5 mm to 0.25 mm, preferably 1 mm to 0.5 mm, further preferably 0.7 mm.
Claim 7
Dependent Claim
19 words
An electrode as claimed in claim 1 in which the corrugations are perpendicularly disposed relative to the hanger bar.
Claim 8
Dependent Claim
19 words
An electrode as claimed in claim 1 in which the sheets have integral tabs connected to the hanger bar.
Claim 9
Dependent Claim
47 words
An electrode as claimed in claim 1 in which the hanger bar is a two-component hanger bar having a titanium portion and a portion of a metal having a greater electrical conductivity than the titanium, the tabs being welded to the titanium portion of the hanger bar.
References Cited (Backward Citations)
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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) | 1985-03-15 | 1985-09-14 | 1986-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-15 | 1989-09-14 | 1990-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-15 | 1993-09-14 | 1994-03-16 | $7700.00 | Window Closed / Lapsed |