The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 28, 1983
Filed:
Jul. 07, 1981
Applicant:
Inventor:
Isao Sugawara, Warabi, JP;
Assignee:
Kabushiki Kaisha Chiyoda, , JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M / ;
U.S. Cl.
CPC ...
363129 ; 363 87 ; 323322 ; 323323 ;
Abstract
An electric power source device for electrolytical production or coloring of alumilite, wherein pulses are generated at a predetermined phase of A.C. source, the pulses are frequency-divided by a non-contact circuit and, depending on the results of the frequency division, analogue switches respectively comprising a non-contact circuit are driven to actuate rectifier units for rectifying the A.C. source. Outputs of alternately reversed polarities with distinctly sharp rising and falling are provided.