Brush making
US6514445B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 1999 |
| Grant date | Feb 4, 2003 |
| Priority date | — |
| Expiry date | Jun 24, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/425
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A process for forming a grooming implement is provided. The steps include providing a blank having a head and a handle, wherein the head has one or more void spaces which divide said head into at least two segments, and injecting an elastomer into the void space at a temperature of at least about 245° C. thereby fusing the elastomer to the segments and forming a resiliently flexible joint. The elastomer is the sole mechanical link between the segments such that the segments can flex relative to each other and the elastomer can be stretched to about 120% of its unstressed length without separation of the elastomer from the segments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.