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:
Sep. 25, 1990
Filed:
Apr. 27, 1989
Hironori Iwamoto, Hikone, JP;
Shigeyuki Ikeda, Hikone, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
A hand-held vibratory massager has a self-contained applicator head which is resiliently connected to a hand grip for limited movement in substantially all directions relative to the hand grip. A drive motor and an eccentric flyweight are mounted together within the applicator head for making it as a self-contained vibrating unit. The eccentric flyweight is connected to a motor output shaft in an eccentric relation thereto for imparting vibration to the applicator head upon rotation of the output shaft. Also mounted within the applicator head is a counterweight which provides dynamic balancing of the applicator head in such a manner as to coincide the center of mass of the entire applicator head with that of the flyweight in the axial direction of the output shaft.