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:
Apr. 11, 2000
Filed:
Oct. 09, 1998
Applicant:
Inventor:
Ka Shing Wu, Hong Kong, HK;
Assignee:
Addway Engineering Limited, , HK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A46B / ;
U.S. Cl.
CPC ...
15 29 ;
Abstract
An electric toothbrush includes a drive shaft that is reciprocated by a motor in a brush handle (not shown). The reciprocating movement is directly transferred to a piston that serves to pump water from a reservoir via a water passage to a water jet nozzle in the midst of brushes.