US3617462A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Platinum titanium hydride bipolar electrodes
Assignee: PPG Industries Inc
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Filing: 1968-05-06
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Granted: 1971-11-02
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Expires: 1988-05-06
Abstract
Abstract Titanium hydride electrodes are disclosed for use in alkali metal chlorine and chlorate cells. The electrodes disclosed are noble metal coated for use as cell anodes in chlorine and chlorate cells or as bipolar electrode elements in chlorine and chlorate cells. The use of titanium hydride electrodes as cathodes in chlorine and chlorate cells is also shown. The noble metal surfaces disclosed are gold, silver, platinum, palladium, iridium and ruthenium. Platinum is disclosed as the preferred noble metal surface.
Inventors
- 👤 Bernard Dewitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:18
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/04; C25B11/051; C25B11/055; C25B11/057; C25B1/00; C25B1/01; C25B1/24; C25B1/26; C25B1/265; C25B11/02; C25B11/036; C25B11/067
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
38 words
A bipolar electrode comprising a plate having substantially solid titanium hydride surface and a platinum surface in contact with a titanium hydride substrate, said substrate and said substantially solid titanium hydride surface being in an electrically communicative relationship.
Claim 2
Dependent Claim
40 words
A bipolar electrode comprising an elongated preformed substantially solid titanium hydride body affixed to an elongated platinum coated titanium body at one end of the long axis of said substantially solid titanium hydride body and said platinum coated titanium body.
Claim 3
Dependent Claim
31 words
A bipolar electrode useful in the electrolysis of aqueous alkali metal halides comprising: a substantially solid titanium hydride member and an electroconductive platinum coating on said substantially solid titanium hydride Member.
References Cited (Backward Citations)
GB956292A
Cited
US3297484A
Cited
US3262876A
Cited
US3410784A
Cited
FR1479762A
Cited
US3441495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |