US3929607A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anodes for electrochemical processes
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1974-02-25
•
Granted: 1975-12-30
•
Expires: 1994-02-25
Abstract
Abstract An anode assembly for an electrolytic cell comprising a foraminate structure of a film-forming metal comprising a plurality of longitudinal members spaced with their longitudinal axes parallel to one another and carrying on at least part of their surface an electrocatalytically active coating, a current lead-in means conductively connected to each longitudinal member, wherein each longitudinal member comprises a channel blade member constituted by a pair of parallel blades having one or more bridge portions connected to the current lead-in means, and wherein the gap between the blades in the vicinity of the bridge portions is greater than the gap between the blades along the length of the member away from the said bridge portions.
Inventors
- 👤 Janusz Josef Henryk Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:50
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
115 words
AN ANODE ASSEMBLY FOR AN ELECTROLYTIC CELL COMPRISING A FORAMINATE STRUCTURE OF A FILM-FORMING METAL COMPRISING A CURRENT LEAD-IN MEANS INCLUDING A PLATE, A PLURALITY OF LONGITUDINAL MEMBERS SPACED WITH THEIR LONGITUDINAL AXES PARALLEL TO ONE ANOTHER AND CARRYING ON AT LEAST PART OF THEIR SURFACE AN ELECTROCATALYTICALLY ACTIVE COATING, EACH LONGITUDINAL MEMBER COMPRISING A CHANNEL BLADE MEMBER INCLUDING A PAIR OF SPACED-APART PARALLEL BLADES AND ONE OR MORE BRIDGE PORTIONS, SAID BRIDGE PORTIONS BEING CONNECTED TO THE PLATE OF THE CURRENT LEAD-IN MEANS, THE GAP BETWEEN THE BLADES IN THE VICINITY OF SAID BRIDGE PORTIONS BEING GREATER THAN THE GAP BETWEEN THE BLADES ALONG THE LENGTH OF THE MEMBER AWAY FROM SAID BRIDGE PORTIONS.
Claim 2
Dependent Claim
115 words
AN ANODE ASSEMBLY FOR AN ELECTROLYTIC CELL COMPRISING A FORAMINATE STRUCTURE OF A FILM-FORMING METAL COMPRISING A CURRENT LEAD-IN MEANS INCLUDING A PLATE, A PLURALITY OF LONGITUDINAL MEMBERS SPACED WITH THEIR LONGITUDINAL AXES PARALLEL TO ONE ANOTHER AND CARRYING ON AT LEAST PART OF THEIR SURFACE AN ELECTROCATALYTICALLY ACTIVE COATING, EACH LONGITUDINAL MEMBER COMPRISING A CHANNEL BLADE MEMBER INCLUDING A PAIR OF SPACED-APART PARALLEL BLADES AND ONE OR MORE BRIDGE PORTIONS, SAID BRIDGE PORTIONS BEING CONNECTED TO THE PLATE OF THE CURRENT LEAD-IN MEANS, THE GAP BETWEEN THE BLADES IN THE VICINITY OF SAID BRIDGE PORTIONS BEING GREATER THAN THE GAP BETWEEN THE BLADES ALONG THE LENGTH OF THE MEMBER AWAY FROM SAID BRIDGE PORTIONS.
Claim 3
Dependent Claim
34 words
An anode assembly as claimed in claim 1 wherein each channel blade member has two bridge portions spaced apart either side of an equidistant from the mid-point of the length of the said member.
Claim 4
Dependent Claim
27 words
An anode assembly as claimed in claim 1 wherein each channel blade member has additional bridge portions at each end thereof attached to a strengthening support member.
Claim 5
Dependent Claim
29 words
An anode assembly as claimed in claim 3 wherein each channel blade member has additional bridge portions along the length thereof to increase the rigidity of the said member.
Claim 6
Dependent Claim
27 words
An anode assembly as claimed in claim 1 wherein the bridge portions are relatively short compared with the length of the blades remote from the bridge portions.
Claim 7
Dependent Claim
26 words
An anode assembly as claimed in claim 1 wherein the channel blade members are identical in shape and are spaced so that like parts are aligned.
Claim 8
Dependent Claim
70 words
An anode assembly as claimed in claim 1 wherein the current lead-in means comprises a double-limbed bridge plate of a film-forming metal connected to the longitudinal members, an upright hollow cylindrical tube of a film-forming metal mounted centrally on said bridge plate and conductively bonded thereto, a current lead-in rod adapted to fit said tube, and means for effecting electrical contact between the current lead-in rod and the bridge plate.
Claim 9
Dependent Claim
14 words
An anode assembly as claimed in claim 1 wherein the film-forming metal is titanium.
Claim 10
Dependent Claim
31 words
An anode assembly as claimed in claim 1 wherein the electrocatalytically active coating comprises at least one platinum group metal or an oxide thereof and an oxide of a film-forming metal.
Claim 11
Dependent Claim
22 words
An anode assembly as claimed in claim 9 wherein the electrolytically active coating comprises a mixture of ruthenium oxide and titanium dioxide.
Claim 12
Dependent Claim
146 words
An anode assembly for a mercury chlorine cell for the electrolysis of an alkali metal chloride brine comprising: a foraminate structure in the form of a plurality of parallel blades; a conductor comprising a double-limbed bridge plate; an upright cylindrical tube mounted on the bridge plate for carrying a current lead-in rod, said foraminate structure, bridge plate and cylinder being constructed of a film-forming metal, said foraminate structure having an electrocatalytically active coating, each pair of blades being spaced apart and connected to one another by one or more bridge portions which are conductively connected to the bridge plate which is in turn conductively connected to said cylindrical tube for carrying a current lead-in rod mounted on said bridge plate, the gap between the blades where connected by the bridge portions being greater than the gap between the blades at other parts along the length thereof.
Claim 13
Dependent Claim
146 words
An anode assembly for a mercury chlorine cell for the electrolysis of an alkali metal chloride brine comprising: a foraminate structure in the form of a plurality of parallel blades; a conductor comprising a double-limbed bridge plate; an upright cylindrical tube mounted on the bridge plate for carrying a current lead-in rod, said foraminate structure, bridge plate and cylinder being constructed of a film-forming metal, said foraminate structure having an electrocatalytically active coating, each pair of blades being spaced apart and connected to one another by one or more bridge portions which are conductively connected to the bridge plate which is in turn conductively connected to said cylindrical tube for carrying a current lead-in rod mounted on said bridge plate, the gap between the blades where connected by the bridge portions being greater than the gap between the blades at other parts along the length thereof.
References Cited (Backward Citations)
US1326134A
Cited
US3308043A
Cited
US3409533A
Cited
US3507771A
Cited
US3689384A
Cited
US3839179A
Cited
US3838035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-29 | 1979-06-30 | 1979-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-29 | 1983-06-30 | 1983-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-29 | 1987-06-30 | 1987-12-30 | $7700.00 | Window Closed / Lapsed |