Electric hair waver
US6667462B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 31, 2002 |
| Grant date | Dec 23, 2003 |
| Priority date | — |
| Expiry date | May 23, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA45D1/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
An electric hair waver includes a handle and a clip. The clip is hinged to the handle and forms a clamp with the handle by means of the spring. A sealed lower semi-barrel is fixed on the forward end of the handle. An upper semi-barrel and the clip are all hinged to the handle, and the clip is also joined with the upper semi-barrel by a flexible connection. A heater that is connected to the power cord is installed respectively inside the upper semi-barrel and lower semi-barrel, and the front of them links with the lower temperature head through the insulation sheath. The flexible connection includes a strip keyhole with a large circle that locates on the clip and a joint-pin fitted on the upper semi-barrel that matches the strip keyhole. The push button fixed on the handle is connected to the joint-pin through a drawbar, and there is reset spring between the push button and the handle. The hair waver can heat hair uniformly and permanently set not only curled hair, but also straight hair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.