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. 27, 1996
Filed:
Jul. 05, 1995
Jung C Kim, Seoul, KR;
Dong Y Oh, Kyungki-do, KR;
Gyu S Choe, Kyungki-do, KR;
Kyung S Hong, Inchon-Jikhalsi, KR;
Kyung H Kim, Seoul, KR;
Joo H Lee, Kyungki-do, KR;
Ha I Lee, Kyungki-do, KR;
Kyeong B Park, Seoul, KR;
Dong S Gil, Seoul, KR;
Oh H Kwon, Seoul, KR;
Byoung H Kwon, Busan-Jikhalsi, KR;
Goldstar Co., Ltd., Seoul, KR;
Abstract
A bulged washing tub for a low frequency vibration type washing machine is disclosed. The side wall of the washing tub is outwardly bulged so that this side wall meets with the bottom of the washing tub at an obtuse angle and smoothly guides the heart type or scroll type water current in the washing tub. A plurality of friction prominences of the horizontal stripe type are provided on the inner surface of the outward bulged side wall. The prominences give frictional force to clothes when the clothes are rubbed against them while coming up and going down along with the water current in the washing tub. The frictional force caused by the prominences causes a so-called washboard effect and makes the clothes cleaned as if they were manually washed using a washboard.