System for introducing pulsation into a fluid output for an oral care appliance
US10642948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 2015 |
| Grant date | May 5, 2020 |
| Priority date | — |
| Expiry date | Jun 11, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F30/394
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The appliance includes a jet source of fluid, and a nozzle assembly through which the fluid is directed and then out for application to the teeth. A flow interrupter assembly is mounted within the nozzle assembly, such that the interrupter assembly is responsive to the fluid flow to produce momentary successive interruptions of the fluid flow by the action of the interrupter assembly moving from an original position to a flow interrupting position and then returning to its original position as the flow decreases and then is interrupted, due to the fluid flow itself, resulting in a cyclical perturbation in the fluid flow from the nozzle, by flow action alone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.