Patent US3656027A successfully refreshed from Google Patents.
US3656027A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical capacitor having electrically-conductive, impervious connector
Assignee: Standard Oil Co
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Filing: 1970-12-28
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Granted: 1972-04-11
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Expires: 1990-12-28
Abstract
Abstract An inter-cell, electron-conducting, ion-insulating connector for use in an electrical capacitor comprising a substrate of metal sheet or graphite which is laminated on at least one side with an elastomer containing electrically conductive carbon black in sufficient amounts to render the elastomer conducting.
Inventors
- 👤 Ralph E Isley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:02
CPC Classifications
H; H01; H01G; H01G11/00; H01G11/22; H01G11/26; H01G11/28; H01G11/52; H01G11/66; H01G11/68; H01G11/70; H01G11/78; H01G11/80; Y; Y02; Y02E; Y02E60/00; Y02E60/13
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
26 words
The connector of claim 1 wherein the elastomer is selected from the group consisting of butyl rubber, copolymers of butadiene-acrylonitrile, and butadiene-styrene, and the natural rubbers.
Claim 2
Dependent Claim
12 words
The connector of claim 2 wherein the elastomer consists of butyl rubber.
Claim 3
Dependent Claim
32 words
The connector of claim 1 wherein the elastomer is blended with from about 50 to 200 parts by weight of electrically conductive carbon black per 100 parts by weight of the elastomer.
Claim 4
Dependent Claim
53 words
The connector of claim 1 wherein the elastomer consists of butyl rubber blended with from 75 to 175 parts by weight of electrically conductive carbon black per 100 parts by weight of the butyl rubber, and the substrate consists of a metal selected from the group consisting of nickel and a nickel-containing alloy.
Claim 5
Dependent Claim
25 words
The connector of claim 5 wherein the butyl rubber-carbon black blend is laminated to a nickel substrate having been previously coated with a polyethyleneimine primer.
Claim 6
Dependent Claim
20 words
The connector of claim 6 wherein the butyl rubber-carbon black blend laminated to the nickel substrate is cured by vulcanizing.
Claim 7
Dependent Claim
109 words
An electrical capacitor comprising a pair of spaced active carbon electrodes compressed from a viscous paste of carbon particles and an electrolyte; a porous ionically conductive separator saturated with electrolyte between said electrodes; and an electron-conducting, ion-insulating connector impervious to the electrolyte positioned adjacent to the outerside of each of said electrodes, said electron-conducting, ion-insulating connectors consisting essentially of an elastomer containing a sufficient amount of electrically conductive carbon black to impart electrical conductivity thereto, laminated to a substrate composed of a material selected from the group consisting of a metal and graphite, said elastomer being laminated to at least one side of the substrate immediately facing the electrode.
Claim 8
Dependent Claim
15 words
The electrical capacitor of claim 8 wherein the electrolyte consists of 30 percent sulfuric acid.
Claim 9
Dependent Claim
60 words
The electrical capacitor of claim 9 wherein the elastomer of the electron-conducting, ion-insulating connector consists of butyl rubber blended with from about 75 to 175 parts by weight of electrically conductive carbon black per 100 parts by weight of the butyl rubber, and the substrate consists of a metal selected from the group consisting of nickel and a nickel-containing alloy.
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) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |