Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1978-01-30
1980-01-22
Peshock, Robert
Dentistry
Apparatus
Having intra-oral dispensing means
128266, 222636, A61C 1700
Patent
active
041842588
ABSTRACT:
A device for blowing powder onto teeth, the device consisting of a handpiece in the form of a housing connected to a compressed air source and having a discharge nozzle member which can be inserted in a patient's mouth and can be directed towards the patient's teeth. The housing has a powder reservoir with a bottom supply duct. An apertured shuttle bar is reciprocably slidably mounted beneath said duct and has a metering hole registrable with said supply duct and then, by longitudinally moving the bar, with a discharge conduit arranged to receive compressed air from the source so as to discharge a metered amount of powder in said hole into the nozzle member for delivery to the patient's teeth.
REFERENCES:
patent: 1471621 (1923-10-01), McCord
patent: 2825135 (1958-03-01), Tilden
patent: 3281022 (1966-10-01), Jarnett
patent: 3797709 (1974-03-01), Ivanouich
Barrington James E.
Hitchcock Charles J.
Mullins Thomas J.
Williams David L.
Peshock Robert
The United States of America as represented by the Department of
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