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:
Jan. 27, 1981
Filed:
Jun. 29, 1979
Applicant:
Inventors:
Eisuke Yoshii, Tokyo, JP;
Hiroshi Kawase, Tokyo, JP;
Assignee:
Ricoh Watch Co., Ltd., Nagoya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433224 ; 433 81 ; 128 66 ;
Abstract
A root canal irrigation means for treating decayed teeth including a liquid vessel filled with water, antiseptic solution or some other kind of liquid, a pumping means for pumping the liquid from the liquid vessel under pressure, and a discharge needle shaped like an injection needle coupled to the outlet of the pumping means and which feeds the liquid under pressure to a dental focus when the pumping means is operated. The pumping means comprises a reciprocating pump which is coupled to the outlet of the liquid vessel.