Patent US4173269A successfully refreshed from Google Patents.
Patent US3674676A successfully refreshed from Google Patents.
US3674676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expandable electrodes
Assignee: Diamond Shamrock Chemicals Co
•
Filing: 1970-02-26
•
Granted: 1972-07-04
•
Expires: 1990-02-26
Abstract
Abstract An electrode is provided which, after insertion in an electrolytic cell, may be caused to expand thereby reducing the electrode-electrode gap and, hence, increasing the power efficiency of the electrolysis. Particularly, an anode for use in a diaphragm-type electrolytic cell for the production of chlorine and caustic is described together with a method for assembling the cell.
Inventors
- 👤 Edward I Fogelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:17
CPC Classifications
C; C25; C25B; C25B11/00; C25B11/02; C25D; C25D17/00; C25D17/10; C25D17/12; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/5313; Y10T29/532; Y10T29/53204
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
56 words
An anode assembly which comprises: a common anode riser disposed from a cell base, at least two opposed working faces and movable, electrically conductive means connecting said faces to opposite sides of the common riser, whereby the distance of the faces from the riser may be varied without disrupting the electrical integrity of the anode assembly.
Claim 2
Dependent Claim
56 words
An anode assembly which comprises: a common anode riser disposed from a cell base, at least two opposed working faces and movable, electrically conductive means connecting said faces to opposite sides of the common riser, whereby the distance of the faces from the riser may be varied without disrupting the electrical integrity of the anode assembly.
Claim 3
Dependent Claim
52 words
An electrode assembly which comprises: a common electrode riser, at least two opposed electrode working faces and movable, electrically conductive means connecting said faces to opposite sides of the common riser, whereby the distance of the faces from the riser may be varied without disrupting the electrical integrity of the electrode assembly.
Claim 4
Dependent Claim
52 words
An electrode assembly which comprises: a common electrode riser, at least two opposed electrode working faces and movable, electrically conductive means connecting said faces to opposite sides of the common riser, whereby the distance of the faces from the riser may be varied without disrupting the electrical integrity of the electrode assembly.
Claim 5
Dependent Claim
48 words
An electrode assembly as in claim 2 wherein non-conductive projecting spacers are carried on the side of the working face not connected to the riser through the connecting means, said spacers serving to maintain a uniform distance between the electrode faces and any surface in pushing proximity thereto.
Claim 6
Dependent Claim
80 words
An electrode assembly which comprises a common electrode riser, at least two opposed electrode working faces and movable, electrically conductive means connecting said faces to opposite sides of said riser wherein the movable, electrically conductive means are flexible connecting means having a memory in a direction from the electrode working face toward the electrode riser and wherein the assembly includes slots on the working faces facing the riser and adapted to receive spacing bars which serve to expand the electrode.
Claim 7
Dependent Claim
80 words
An electrode assembly which comprises a common electrode riser, at least two opposed electrode working faces and movable, electrically conductive means connecting said faces to opposite sides of said riser wherein the movable, electrically conductive means are flexible connecting means having a memory in a direction from the electrode working face toward the electrode riser and wherein the assembly includes slots on the working faces facing the riser and adapted to receive spacing bars which serve to expand the electrode.
Claim 8
Dependent Claim
74 words
An electrode assembly which comprises a common electrode riser, at least two opposed electrode working faces and movable, electrically conductive means connecting said faces to opposite sides of said riser wherein the movable electrically conductive means are flexible connecting means having a memory in a direction away from the electrode riser and wherein said means are provided with lips over which clamping bars may be positioned to maintain said electrode in a contracted form.
Claim 9
Dependent Claim
74 words
An electrode assembly which comprises a common electrode riser, at least two opposed electrode working faces and movable, electrically conductive means connecting said faces to opposite sides of said riser wherein the movable electrically conductive means are flexible connecting means having a memory in a direction away from the electrode riser and wherein said means are provided with lips over which clamping bars may be positioned to maintain said electrode in a contracted form.
Claim 10
Dependent Claim
77 words
An electrode assembly which comprises an electrode riser, at least one electrode working face and movable electrically conductive means connecting said face to said riser wherein the movable, electrically conductive means are flexible connecting means having a memory in the direction from the electrode working face toward the electrode riser and wherein the assembly includes a slot on the working face facing the riser and adapted to receive a spacing bar wHich serves to expand the electrode.
Claim 11
Dependent Claim
77 words
An electrode assembly which comprises an electrode riser, at least one electrode working face and movable electrically conductive means connecting said face to said riser wherein the movable, electrically conductive means are flexible connecting means having a memory in the direction from the electrode working face toward the electrode riser and wherein the assembly includes a slot on the working face facing the riser and adapted to receive a spacing bar wHich serves to expand the electrode.
Claim 12
Dependent Claim
67 words
An electrode assembly which comprises a common electrode riser, at least two opposed electrode working faces and movable, electrically conductive means connecting said faces to opposite sides of said riser wherein the movable, electrically conductive means are flexible connecting means having a memory in a direction away from the electrode riser and wherein removable clamping means are positioned to maintain said electrode assembly in a contracted form.
Claim 13
Dependent Claim
67 words
An electrode assembly which comprises a common electrode riser, at least two opposed electrode working faces and movable, electrically conductive means connecting said faces to opposite sides of said riser wherein the movable, electrically conductive means are flexible connecting means having a memory in a direction away from the electrode riser and wherein removable clamping means are positioned to maintain said electrode assembly in a contracted form.
Claim 14
Independent Claim
120 words
A method for assembling an electrolytic cell comprising a cathode can with cathodes fixed therein, and a cell base supporting anode risers disposed therefrom, each of said risers serving to conduct current to a pair of anode working faces, which method comprises: A. placing the cathode can over the anodes disposed from the cell base in such a manner than an alternating array of anodes and cathodes is presented, said anodes and cathodes being separated by a discrete and considerable anode-cathode gap; B. causing said gap to be reduced by expanding the anode, with respect to the anode face-anode face distance; C. maintaining electrical integrity between each pair of anode faces and its riser through movable electrically conductive connecting means.
Claim 15
Independent Claim
120 words
A method for assembling an electrolytic cell comprising a cathode can with cathodes fixed therein, and a cell base supporting anode risers disposed therefrom, each of said risers serving to conduct current to a pair of anode working faces, which method comprises: A. placing the cathode can over the anodes disposed from the cell base in such a manner than an alternating array of anodes and cathodes is presented, said anodes and cathodes being separated by a discrete and considerable anode-cathode gap; B. causing said gap to be reduced by expanding the anode, with respect to the anode face-anode face distance; C. maintaining electrical integrity between each pair of anode faces and its riser through movable electrically conductive connecting means.
Claim 16
Dependent Claim
35 words
A method as in claim 8 wherein the anode face-anode face spacing is expanded, and maintained in an expanded state, by inserting at least one spacing bar between the anode faces associated with each riser.
Claim 17
Dependent Claim
41 words
A method as in claim 8 wherein the anode face-anode face spacing is expanded, and maintained in an expanded state, by the spring action of the electrically conductive connecting means which have a memory in a direction away from the riser.
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) | 1975-07-04 | 1976-01-03 | 1976-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-04 | 1980-01-03 | 1980-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-04 | 1984-01-03 | 1984-07-04 | $7700.00 | Window Closed / Lapsed |