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:
May. 08, 1984
Filed:
Dec. 15, 1982
Applicant:
Inventor:
Carl S Hartwig, Taby, SE;
Assignee:
Institut Cerac S.A., Ecublins, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06F / ; D06F / ; H02P / ;
U.S. Cl.
CPC ...
68 24 ; 68140 ; 318801 ; 318807 ;
Abstract
The invention relates to a washing machine which comprises a casing (1) having a washing-liquid container (2) and a cylindrical washing drum (3) rotatably arranged in the container. The washing drum is driven by a single, brushless a.c.motor, to which energy is supplied from an inverter (41), so that the washing machine may be driven at a desired, alternative number of revolutions/min, which are preprogrammed and within an extended range of revolutions/min.