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.

Date of Patent:
Sep. 07, 1999

Filed:

Dec. 24, 1998
Applicant:
Inventors:

Shusuke Kimura, Yono, JP;

Shigeru Nakamura, Yono, JP;

Tatsuo Okazaki, Kami-Fukuoka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61G / ;
U.S. Cl.
CPC ...
433 80 ;
Abstract

A dental treatment apparatus having a sterilized water producing unit placed in a water circuit of a dental chair unit. The sterilized water producing unit electrolyzes water mixed with sodium chloride and hydrochloric acid in a diaphragmless electrolytic cell to produce sterilized water having a residual free chlorine concentration adjusted in the range of from 1.0 ppm to 200 ppm and a pH adjusted in the range of from 3 to 7. The dental treatment apparatus further has a water circuit switching controller that alternately switches between raw water and feed water from the sterilized water producing unit.


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