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:
Mar. 24, 1987
Filed:
Jun. 06, 1986
Yoshio Kohsaka, Aichi, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A washing machine includes a washing tub whose peripheral wall is formed of an upper peripheral wall section and a lower peripheral wall section located thereunder and adapted to be rotated in two opposite directions. The washing tub receives laundry and water therein. In the washing mode, the lower peripheral wall section is rotated both clockwise and counterclockwise. Thus, the laundry is circulated by frictional contact with the lower peripheral wall section and is washed by the effect of multiplication of frictional forces produced by contact with the upper and lower peripheral wall sections. A projection protrudes upward from the inner bottom surface of the washing tub and is located inside the lower peripheral wall section to touch the laundry to increase the cleaning efficiency.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile