Vertically reciprocating pairs of massage rings
US5741218A · kind A · utility
21Cited by
5References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1997 |
| Grant date | Apr 21, 1998 |
| Priority date | — |
| Expiry date | Mar 18, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61H2205/081
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
The present invention is directed to a massager in which a massage unit comprising kneading rings on the right and left sides is mounted movably up and down inside thereof, and the massage unit is equipped with a plurality of air cells, each of the kneading rings being moved backward and forward or rightward and leftward by an expanding and contracting operation of the air cell or cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.