Toothbrush
US5533227A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1995 |
| Grant date | Jul 9, 1996 |
| Priority date | — |
| Expiry date | Jun 23, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A toothbrush capable of permitting tips of fillings thereof to enter or reach areas such as recesses between teeth, boundaries between teeth and gingivae, and the like to effectively remove dental plaque and the like and exhibit a soft feeling sufficient to prevent damage to gingivae. The toothbrush includes fillings made of a synthetic filament material. The fillings are each formed at both tips thereof into a pointed tapered shape and tied up into a plurality of bundles. The pointed tapered tips of the fillings are each formed with a length of 4 to 8 mm and a non-tapered section of each of the fillings is formed with a maximum diameter of 0.16 to 0.20 mm. Filling setting holes of a filling setting base provided at distal end of a handle of the toothbrush so as to set the bundles of the fillings thereon are formed with a diameter of 1.5 to 2.0 mm and spaced from other holes at an interval of 1.0 to 1.2 mm in the longitudinal direction of the handle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.