Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1998-03-27
1999-01-12
Wilson, John J.
Dentistry
Apparatus
Having intra-oral dispensing means
451102, A61C 302
Patent
active
058578510
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.
REFERENCES:
patent: 1398527 (1921-11-01), Muspratt
patent: 3556411 (1971-01-01), Nord et al.
patent: 4540365 (1985-09-01), Nelson et al.
patent: 4648840 (1987-03-01), Conger, Sr.
Ferton Holding
Wilson John J.
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