CH263405A - Process for the manufacture of elements of alternating current rectifiers. - Google Patents

Process for the manufacture of elements of alternating current rectifiers.

Info

Publication number: CH263405A
Authority: CH; Switzerland
Prior art keywords: manufacture; elements; alternating current; current rectifiers; rectifiers
Prior art date: 1938-12-28

Application number

Other languages

French (fr)

Inventor

Westinghouse Brake Sig Limited

Original Assignee

Westinghouse Brake & Signal

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.)

1938-12-28

Filing date

1946-05-21

Publication date

1949-08-31

1946-05-21 Application filed by Westinghouse Brake & Signal filed Critical Westinghouse Brake & Signal

1949-08-31 Publication of CH263405A publication Critical patent/CH263405A/en

Classifications

- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D48/00—Individual devices not covered by groups H10D1/00 - H10D44/00
- H10D48/01—Manufacture or treatment
- H10D48/04—Manufacture or treatment of devices having bodies comprising selenium or tellurium in uncombined form
- H10D48/043—Preliminary treatment of the selenium or tellurium, its application to foundation plates or the subsequent treatment of the combination
- H10D48/045—Treatment of the surface of the selenium or tellurium layer after having been made conductive

CH263405D 1938-12-28 1946-05-21 Process for the manufacture of elements of alternating current rectifiers. CH263405A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GB37680/38A GB523216A (en)	1938-12-28	1938-12-28	Improvements relating to the manufacture of alternating current rectifiers

Publications (1)

Publication Number	Publication Date
CH263405A true CH263405A (en)	1949-08-31

Family

ID=10398214

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH263405D CH263405A (en)	1938-12-28	1946-05-21	Process for the manufacture of elements of alternating current rectifiers.

Country Status (5)

Country	Link
US (1)	US2266922A (en)
CH (1)	CH263405A (en)
DE (1)	DE856663C (en)
FR (1)	FR859693A (en)
GB (1)	GB523216A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
BE445491A (en) *	1941-05-07
BE471989A (en) *	1941-07-16
US2522474A (en) *	1942-07-02	1950-09-12	Battelle Memorial Institute	Treatment of zinc surfaces
US2438923A (en) *	1943-02-11	1948-04-06	Fed Telephone & Radio Corp	Method and means for making selenium elements
BE476039A (en) *	1943-07-30	1900-01-01
DE967323C (en) *	1943-08-06	1957-11-07	Siemens Ag	Process for the production of selenium rectifiers, the top electrode of which is thallium added in small quantities
BE467627A (en) *	1945-05-12
NL80773C (en) *	1948-12-29	1900-01-01
US2841749A (en) *	1955-04-11	1958-07-01	Sarkes Tarzian	Selenium rectifier

1938
- 1938-12-28 GB GB37680/38A patent/GB523216A/en not_active Expired
1939
- 1939-08-30 FR FR859693D patent/FR859693A/en not_active Expired
- 1939-09-06 US US293596A patent/US2266922A/en not_active Expired - Lifetime
- 1939-12-13 DE DEW3255D patent/DE856663C/en not_active Expired
1946
- 1946-05-21 CH CH263405D patent/CH263405A/en unknown

Also Published As

Publication number	Publication date
FR859693A (en)	1940-12-24
US2266922A (en)	1941-12-23
GB523216A (en)	1940-07-09
DE856663C (en)	1952-11-24

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