Brush head with a shaped bottom plate
US5078158A · kind A · utility
6Cited by
1References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 9, 1990 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | Aug 9, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C66/71
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A brush head for cleaning and massaging the teeth and gums is disclosed having a bundle of fibers welded together to form a bottom plate. The bottom plate has formed structures produced by partially melting one end of the fiber bundle while pressing the bundle into a shaped recess in a heated tool. The shaped structures allow interlocking of the brush head with mating structures in a driving devise.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.