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:
Jan. 06, 2009
Filed:
May. 12, 2004
Seung Chul Park, Kyungki-do, KR;
SI Moon Jeon, Seoul, KR;
Gwan Ryong Park, Seoul, KR;
Jae Hyun Kim, Kyungki-do, KR;
Seung Chul Park, Kyungki-do, KR;
Si Moon Jeon, Seoul, KR;
Gwan Ryong Park, Seoul, KR;
Jae Hyun Kim, Kyungki-do, KR;
LG Electronics Inc., Seoul, KR;
Abstract
Disclosed herein is a damper for washing machines. The damper comprises a cylinder and a piston interactively coupled to each other in a state wherein the cylinder is connected to a tub and the piston is connected to a base, a first friction member provided around the piston for generating a frictional force when the piston moves inside the cylinder, a slider coupled to the piston inside the cylinder so as to move together with the piston if the piston moves beyond a predetermined displacement range, and a second friction member provided around the slider for generating a frictional force when the slider moves inside the cylinder. The damper configured as stated above generates different damping forces according to the vibration degrees of the tub, thereby effectively attenuating the vibration of the tub.