Pneumatic-operated toothbrush
US6622333B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2002 |
| Grant date | Sep 23, 2003 |
| Priority date | — |
| Expiry date | Sep 4, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C17/3436
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
In accordance with one embodiment of the present invention a pneumatic-operated toothbrush incorporates a pump that a user may utilize to pump are into and pressurize air in a reservoir. The reservoir is attached to a pneumatic motor, which utilizes the pressurized air inside the reservoir to rotate a drive shaft. Attached to the end of the drive shaft is a plurality of bristles that rotate when the drive shaft is rotating. The motor will continue to rotate the bristles as long as the pressure inside the reservoir is sufficient enough to force the air into the pneumatic motor. When the motor stops rotating the bristles, the user can pump air back inside the reservoir for continued use. It is important to note that the pneumatic toothbrush for the present invention is a self-contained device, meaning that the reservoir, motor and pump are incorporated into a single toothbrush. In addition the present invention does not use batteries or other electrical elements to power the motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.