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:
Nov. 05, 2019
Filed:
Jan. 28, 2015
Shanghai Shift Electrics Co., Ltd., Shanghai, CN;
SHANGHAI SHIFT ELECTRICS CO., LTD., Shanghai, CN;
Abstract
A cleaning care appliance comprises a transducer comprising a drive shaft and magnets arranged on the left and right sides of the longitudinal axis of the drive shaft. The magnets are independent of each other, the polarity of the magnetic pole of one side of the magnet is opposite to that of the other side in the direction facing driving coil, the angle between the direction of magnetic force lines inside the magnets and the direction of the longitudinal axis of driving coil iron core is greater than 45° and smaller than 135°, the magnets move with respect to the elastic element retainer. When alternating current flows through the drive coil, the angle between magnet movement direction and the longitudinal axis of the core is greater than 170° and smaller than 190°. The appliance has low cost, low noise, low damping, and is safe, and reliable.