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:
Jun. 07, 2016
Filed:
Oct. 25, 2012
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Consumer Electronics Holdings Corporation, Tokyo, JP;
Toshiba Home Appliances Corporation, Tokyo, JP;
Takashi Nishimura, Tokyo, JP;
Hiroshi Nishimura, Tokyo, JP;
Koji Hisano, Tokyo, JP;
Tatsuya Ooyabu, Tokyo, JP;
Shinichiro Kawabata, Tokyo, JP;
KABUSHIKI KAISHA TOSHIBA, Tokyo, JP;
TOSHIBA CONSUMER ELECTRONICS HOLDINGS CORPORATION, Tokyo, JP;
TOSHIBA HOME APPLIANCES CORPORATION, Tokyo, JP;
Abstract
A washing machine includes a vibration damping device located in an outer casing for damping vibration of a tub using a cylinder enclosing an operating fluid including a functional fluid such as a magnetic viscous fluid changing a viscosity when an electrical energy is applied to the fluid. The vibration damping device includes the cylinder, a shaft inserted into the cylinder, a coil disposed in the cylinder, two yokes disposed between the cylinder and the shaft so as to be located at both axial sides of the coil respectively, the yokes forming a magnetic circuit together with the shaft and cylinder, a sealing member disposed axially outside one of the yokes in the cylinder to seal the operating fluid, and two bearings located axially outside the respective yokes in the cylinder to support the shaft so that the shaft is axially reciprocable.