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. 17, 1984
Filed:
May. 20, 1981
Applicant:
Inventor:
Takahiro Matsui, Uji, JP;
Assignee:
Kabushiki Kaisha Morita Seisakusho, Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433 84 ; 433 98 ; 433106 ; 251 634 ; 141119 ;
Abstract
This disclosure relates to a driving and water pouring control device for dental air-drive handpiece. According to the control device, there is incorporated a water pouring on-and-off valve means into an air feed passageway for driving a turbine so as to close and open the valve means by using part of air inside the passageway and to concurrently provide the valve means with a function of preventing water from dropping when pouring of water is stopped. The disclosure also relates to a device capable of compactly assembling therein device members.