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. 12, 1999
Filed:
Mar. 27, 1998
Philippe Chavanne, Aclens, CH;
Ferton Holding, Delemont, CH;
Abstract
A dental handpiece for use with a prophylaxis treatment of carious teeth by means of a powder mixed with air and water is provided on a gripping sleeve of the handpiece with an integrated powder container which is formed as a closed hollow body of rotation. The hollow body of rotation forms a whirl chamber which spatially acts in all directions for a mixing of the stored powder with air which is supplied substantially in the geometric center of the body of rotation whereas the powder and air mixture which is formed in this powder container is transferred by means of a transfer line to a multiple nozzle arrangement of a spray head of the gripping sleeve via an inlet end of the transfer line which is provided also substantially in this geometric center directly adjacent to the outlet end of the flow line for air, the nozzle arrangement being also connected with a supply line for water.