Hair winding device
US4989621A · kind A · utility
10Cited by
6References
9Claims
0Family size
Inventor
Key dates
| Filing date | Sep 2, 1988 |
| Grant date | Feb 5, 1991 |
| Priority date | — |
| Expiry date | Sep 2, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D2/24
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The invention relates to a hair winding device for taking up and winding on hair strands. A hair winding rod (1), consists of two parts (2, 3) connected with each other in an articulated manner. At least one foil sheet is attached to the rod foaming protective foils (3, 4) which are impermeable to the waving fluid secured to each of the both parts of the hair winding rod to produce a root permanent wave. Those protective foils project by a considerable length transversely to the longitudinal axis of the hair winding rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.