FR781144A - Improvements to electrolytic devices, such as capacitors and the like - Google Patents

Improvements to electrolytic devices, such as capacitors and the like

Info

Publication number
FR781144A
FR781144A FR781144DA FR781144A FR 781144 A FR781144 A FR 781144A FR 781144D A FR781144D A FR 781144DA FR 781144 A FR781144 A FR 781144A
Authority
FR
France
Prior art keywords
capacitors
electrolytic devices
electrolytic
devices
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Philips North America LLC
Original Assignee
Magnavox Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Magnavox Co filed Critical Magnavox Co
Application granted granted Critical
Publication of FR781144A publication Critical patent/FR781144A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/04—Electrodes or formation of dielectric layers thereon
    • H01G9/048—Electrodes or formation of dielectric layers thereon characterised by their structure
    • H01G9/055—Etched foil electrodes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/10—Etching compositions
    • C23F1/14—Aqueous compositions
    • C23F1/16—Acidic compositions
    • C23F1/20—Acidic compositions for etching aluminium or alloys thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
    • H01G9/004—Details
    • H01G9/04—Electrodes or formation of dielectric layers thereon
FR781144D 1933-11-11 1934-11-10 Improvements to electrolytic devices, such as capacitors and the like Expired FR781144A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US440221XA 1933-11-11 1933-11-11

Publications (1)

Publication Number Publication Date
FR781144A true FR781144A (en) 1935-05-09

Family

ID=21930118

Family Applications (1)

Application Number Title Priority Date Filing Date
FR781144D Expired FR781144A (en) 1933-11-11 1934-11-10 Improvements to electrolytic devices, such as capacitors and the like

Country Status (2)

Country Link
FR (1) FR781144A (en)
GB (1) GB440221A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE756216C (en) * 1936-12-19 1952-10-13 Siemens & Halske A G Electrolytic process for roughening the surface of an electrode, especially for electrolytic capacitors
DE976532C (en) * 1935-12-09 1963-10-24 Radio Patents Company Method and device for the artificial surface enlargement of the electrodes for electrolytic capacitors
US4101112A (en) * 1976-11-24 1978-07-18 Conners John A Pipe line coupling system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1033781B (en) * 1954-07-28 1958-07-10 Aluminium Walzwerke Singen Process for the production of chemically or electrochemically strongly roughened aluminum surfaces for electrolytic capacitors

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976532C (en) * 1935-12-09 1963-10-24 Radio Patents Company Method and device for the artificial surface enlargement of the electrodes for electrolytic capacitors
DE756216C (en) * 1936-12-19 1952-10-13 Siemens & Halske A G Electrolytic process for roughening the surface of an electrode, especially for electrolytic capacitors
US4101112A (en) * 1976-11-24 1978-07-18 Conners John A Pipe line coupling system

Also Published As

Publication number Publication date
GB440221A (en) 1935-12-23

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