Methods to impregnate and dispense floss using novel dental floss dispensers
US6705328B1 · kind B1 · utility
Inventor
Key dates
| Filing date | Nov 27, 2001 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Jan 17, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C15/043
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Improved dental floss dispensers that impregnate floss with fluids and/or solids have been developed. One dental floss dispenser consists of a tube that holds a roll of dental floss separated from the main chamber by either a disc or a bag. The main chamber may consist of one or several compartments and it is filled with fluids and/or solids. The untreated floss is first threaded through a hole in the protective cover that separates the floss reel from the lower compartment and it passes through the lower compartment filled with a viscous fluid of sufficiently high viscosity. The partially impregnated floss is then threaded through a barrier that divides the lower and the upper compartments and passes through the upper compartment filled with an impregnating fluid or solid. The fluids and/or solids are now adhered to the floss so it can be used as a means to deliver compositions. The impregnated floss is then threaded through a hole in the closure of the dispenser and it is sealed by adhesive backed plastic, paper or foil. A cutter is placed on the neck of the container and it is used for removing a segment of the impregnated dental floss. A second dental floss dispenser consists o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.