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:
Aug. 12, 2008
Filed:
May. 16, 2003
IN Haeng Cho, Changwon-shi, KR;
Jae Cheol Lyu, Changwon-shi, KR;
Bon Kwon Koo, Seoul, KR;
Kwon Ki Hong, Changwon-shi, KR;
Min Jin OH, Changwon-shi, KR;
Du Heig Choi, Changwon-shi, KR;
In Haeng Cho, Changwon-shi, KR;
Jae Cheol Lyu, Changwon-shi, KR;
Bon Kwon Koo, Seoul, KR;
Kwon Ki Hong, Changwon-shi, KR;
Min Jin Oh, Changwon-shi, KR;
Du Heig Choi, Changwon-shi, KR;
LG Electronics Inc., Seoul, KR;
Abstract
Device and method for detecting malfunction of a clutch in a washing machine, the device including a clutch including a coupling for transmission of a power from a motor to a washing shaft or a spinning shaft, a clutch motor () for providing a power to the coupling, a switch for controlling the coupling, and a cam () fitted to be rotatable with the clutch motor for turning on/off the switch in response to the rotation, a power supplying part for supplying a voltage to the motor and the clutch motor (), a pulse counting part for counting a number of pulses of a voltage supplied to the clutch motor from the power supplying part, and a microcomputer for repeating a process in which the clutch motor is stopped for a second set time period (S) and operated again if the switch is not switched for a first set time period from a time the clutch motor is put into operation, and informs to a user that the clutch is in malfunction if the switch is not switched while the process is repeated equal to or more than a set times, thereby determining the clutch of being out of order and informing a result of the determination to a user.