Dental flosser units and method of making same
US5305768A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1993 |
| Grant date | Apr 26, 1994 |
| Priority date | — |
| Expiry date | Jun 28, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C15/041
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dental flosser unit for flossing teeth includes a filament of high tensile strength terminating in thickened portions at its opposite ends. In the same described embodiments, each thickened end portion includes a ferrule enclosing and crimped to the respective filament end, and a plastic body enclosing the ferrule and the respective filament end. The filament preferably includes a plurality of threads of high tensile strength coated with a low-friction material. In another described embodiment, a plastic material is injection-molded onto each end of the filament at a temperature greater than 280.degree. C. to melt the coating and to bond directly to the threads. A further embodiment is described in which the thickened end portion is constituted of a two-part bead having complementary socket and plug formations for firmly clamping the filament.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.