Patent · US Active

Motorized toothbrush tip having inner and other heads counter around different axes

US8302238B2 · kind B2 · utility

20Cited by

11References

43Claims

0Family size

Assignee

East Coast Medical & Dental Devices, Inc. · US

Inventors

Ladislau Biro · Metuchen, US
Howard Cohen · Brooklyn, US

Key dates

Filing date	Jul 22, 2009
Grant date	Nov 6, 2012
Priority date	—
Expiry date	Apr 10, 2031

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61C17/3436
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A toothbrush tip for a motorized toothbrush with a first brush head and a second brush head. The second brush head encircles the first brush head. The first and second brush heads has different axes of rotation. The first and second brush heads are driven by an elongated shaft. The shaft engages the second brush head. Interactive gear teeth associated with each first and second brush heads allows the first and second brush heads to rotate at opposite direction, upon being driven by the shaft.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.