The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 12, 1995
Filed:
May. 26, 1994
Applicant:
Inventors:
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C / ; A46B / ;
U.S. Cl.
CPC ...
15 221 ; 74 23 ;
Abstract
A tooth-brush is provided which has a brush shank (4) adapted to be driven electrically by a drive (2) and provided with a brush-head (5) having bristles (6), which brush-head performs movement (8), for example, a loosening movement whose frequency is higher than 30 Hz and whose amplitude is between 0.1 mm and 5 mm, which brush-head performs an additional movement (9), for example, a wiping movement having a frequency of between 1 Hz and 5 Hz. The combination of a rapid loosening movement and a slow wiping movement ensures that the teeth are cleaned in a thorough but gentle manner.