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US3843412A Expired / Lapsed US ⏱️ 0.0 years remaining

Galvanic electrode cover method

Assignee: Tudor AB
•
Filing: 1970-04-07
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Granted: 1974-10-22
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Expires: 1990-04-07
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Abstract

Abstract 1. The method of making a cover for retaining active material on the respective rods of conductive material of a plural, parallel rod electrode for use in a storage battery having positive and negative electrodes and a liquid electrolyte comprising the steps of: (a) providing a plurality of like fibrous sleevings; (b) placing the sleevings under at least nominal tension on substantially flat mandrels; (c) alternating the sleeving covered mandrels with a electrolyte resistant synthetic resinous material in contact with the sleeving of the immediately adjacent mandrels, the material being substantially one half the width of the mandrels and transversely centered with respect thereto; (d) compressing the alternated sleeving covered mandrels and material while applying heat to secure adjacent ones of the sleevings to each other in the area of the resinous material by the impregnation of the sleevings with the material; (e) removing the mandrels from the secured sleevings; and (f) expanding the secured sleevings to form a plurality of tubes of substantially rectangular cross section, with the resinous material substantially coextensive with the width of the expanded electrode cover.

Inventors

  • 👤 E Sundberg

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 21:22
CPC Classifications
H; H01; H01M; H01M4/00; H01M4/02; H01M4/64; H01M4/70; H01M4/76; H01M4/765; Y; Y02; Y02E; Y02E60/00; Y02E60/10

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 180 words
The method of making a cover for retaining active material on the respective rods of conductive material of a plural, parallel rod electrode for use in a storage battery having positive and negative electrodes and a liquid electrolyte comprising the steps of: (a) providing a plurality of like fibrous sleevings; (b) placing the sleevings under at least nominal tension on substantially flat mandrels; (c) alternating the sleeving covered mandrels with a electrolyte resistant synthetic resinous material in contact with the sleeving of the immediately adjacent mandrels, the material being substantially one half the width of the mandrels and transversely centered with respect thereto; (d) compressing the alternated sleeving covered mandrels and material while applying heat to secure adjacent ones of the sleevings to each other in the area of the resinous material by the impregnation of the sleevings with the material; (e) removing the mandrels from the secured sleevings; and (f) expanding the secured sleevings to form a plurality of tubes of substantially rectangular cross section, with the resinous material substantially coextensive with the width of the expanded electrode cover.
Claim 2
Independent Claim 180 words
The method of making a cover for retaining active material on the respective rods of conductive material of a plural, parallel rod electrode for use in a storage battery having positive and negative electrodes and a liquid electrolyte comprising the steps of: (a) providing a plurality of like fibrous sleevings; (b) placing the sleevings under at least nominal tension on substantially flat mandrels; (c) alternating the sleeving covered mandrels with a electrolyte resistant synthetic resinous material in contact with the sleeving of the immediately adjacent mandrels, the material being substantially one half the width of the mandrels and transversely centered with respect thereto; (d) compressing the alternated sleeving covered mandrels and material while applying heat to secure adjacent ones of the sleevings to each other in the area of the resinous material by the impregnation of the sleevings with the material; (e) removing the mandrels from the secured sleevings; and (f) expanding the secured sleevings to form a plurality of tubes of substantially rectangular cross section, with the resinous material substantially coextensive with the width of the expanded electrode cover.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-21 1978-04-22 1978-10-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-21 1982-04-22 1982-10-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-21 1986-04-22 1986-10-22 $7700.00 Window Closed / Lapsed

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