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:
Dec. 08, 1987
Filed:
Apr. 09, 1986
Yoshio Ikeda, Aichi, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A washing machine includes a washing tub whose peripheral wall is constituted by an upper peripheral wall section and a lower peripheral wall section which is located below the upper peripheral wall section and which is driven to rotate clockwise and counterclockwise. The washing tub receives water and laundry therein. In the case of a small load of laundry, the laundry is caused to flow, and to be washed due mainly to the flow or water caused by the rotation of the lower peripheral wall section. In the case of a large amount of the load of laundry, the laundry can be due to the synergetic action of the frictional forces. In such a washing machine, the inner surface of the lower peripheral wall section is made gradually larger in diameter from its lower portion to its upper portion.