Patent US4045323A successfully refreshed from Google Patents.
US4045323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anolyte sealing, electrical insulating for electrolytic cells
Assignee: BASF Corp
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Filing: 1976-11-05
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Granted: 1977-08-30
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Expires: 1996-11-05
Abstract
Abstract In diaphragm-type electrolytic cells for the production of chlorine and caustic from alkali metal chloride solutions wherein the cell is equipped with one or more metal cathodes and anodes and an electrically conducting and structurally supporting anodic cell base there is provided a novel electrically non-conductive blanket. The anodes are provided with collars at one end thereof and the blanket and cell base are provided with corresponding openings to receive and support the anodes. The blanket openings are provided with an integral lip and shoulder wherein resilient gaskets are disposed around the anode stems and between the lip of the blanket and the collar of the anode.
Inventors
- 👤 Frank Boggs, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:33
CPC Classifications
C; C25; C25B; C25B9/00; C25B9/60; C25B9/65
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
116 words
In a diaphragm-type electrolytic cell for the production of chlorine and caustic from alkali metal chloride solutions, the improvement comprising: a. a cell base, having at least one opening defined therein, b. a semi-rigid electrically non-conductive blanket covering said cell base having at least one opening defined therein corresponding to said opening in said cell base, said blanket having an integral lip disposed around said opening, c. at least one metal anode having a collar near one end thereof corresponding to said lip, said end being affixed to said cell base passing through said blanket opening, and d. a resilient gasket disposed around said anode and interposed between the lip of said blanket and said collar.
Claim 2
Dependent Claim
116 words
In a diaphragm-type electrolytic cell for the production of chlorine and caustic from alkali metal chloride solutions, the improvement comprising: a. a cell base, having at least one opening defined therein, b. a semi-rigid electrically non-conductive blanket covering said cell base having at least one opening defined therein corresponding to said opening in said cell base, said blanket having an integral lip disposed around said opening, c. at least one metal anode having a collar near one end thereof corresponding to said lip, said end being affixed to said cell base passing through said blanket opening, and d. a resilient gasket disposed around said anode and interposed between the lip of said blanket and said collar.
Claim 3
Dependent Claim
56 words
The cell of claim 1 wherein said blanket is constructed of an inert filler material selected from the group consisting of the polymers of acrylonitrile-butadiene-styrene, styrene-acrylonitrile, acetals, alkyds, allylics, fluorocarbons, ionomers, polyamides, phenolics, phenylene oxide, polyaryl ether, polyaryl sulfone, polyesters, polyethylene, polyimides, polyphenylene sulfide, polypropylene, polystyrene, polysulfone, polyurethane, polyvinyl chloride, polyvinylidene chloride and vinyl chloride-vinyl acetate.
Claim 4
Dependent Claim
16 words
The cell of claim 1 wherein said blanket is constructed of fiber glass reinforced fluorocarbon polymer.
Claim 5
Dependent Claim
35 words
The cell of claim 1 wherein said blanket is constructed of a material selected from the group consisting of polymers of polytetrafluoroethylene, polychlorotrifluoroethylene, fluorinated ethylene-propylene polymer, vinylidene fluoride polymer, ethylene trifluoroethylene polymer and ethylene chlorotrifluoroethylene.
Claim 6
Dependent Claim
15 words
The cell of claim 1 wherein said blanket is constructed of fiber glass reinforced polytetrafluoroethylene.
Claim 7
Dependent Claim
17 words
The cell of claim 1 wherein said anode comprises a main body portion and a support stem.
Claim 8
Dependent Claim
20 words
The anode of claim 5 wherein said support stem is attached to said cell base by means of a stud.
Claim 9
Dependent Claim
14 words
The cell of claim 1 wherein the resilient gasket is constructed of fluorocarbon polymer.
Claim 10
Dependent Claim
24 words
The cell of claim 7 wherein the resilient gasket is constructed of a polymer selected from the group consisting polytetrafluoroethylene, polychlorotrifluoroethylene and polyvinylidene fluoride.
Claim 11
Dependent Claim
13 words
The cell of claim 8 wherein the resilient gasket is constructed of polytetrafluoroethylene.
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) | 1980-08-29 | 1981-02-28 | 1981-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-29 | 1985-02-28 | 1985-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-29 | 1989-02-28 | 1989-08-30 | $7700.00 | Window Closed / Lapsed |