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.

Date of Patent:
Aug. 12, 2014

Filed:

Aug. 13, 2012
Applicants:

Ja Young Kim, Suwon-si, KR;

Doo Young Ryu, Suwon-Si, KR;

Inventors:

Ja Young Kim, Suwon-si, KR;

Doo Young Ryu, Suwon-Si, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
D06F 35/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A drum type washing machine includes an annular recess formed in the front cover such that the annular recess is located immediately adjacent to a wall of the drum body; and a ball balancer including an annular-shaped racer having a closed internal space in which a plurality of balls and viscous oil are accommodated. The annular-shaped racer includes first and second injection molded members joined to each other to form the closed internal space. The ball balancer is supported by the annular recess formed in the front cover of the drum, and the ball balancer is configured to be attachable to the drum with the viscous oil and the plurality of balls already in the ball balancer.


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