|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||433/88 ; 128/266 ; 222/636|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 30 인용 특허 : 0|
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 compres...
A therapeutic air/powder suspension spraying device for dental treatments comprising a handpiece in the form of a housing, powder reservoir means to contain a dental treatment powder in dry form, said reservoir means being mounted on said housing and having a bottom discharge orifice, a shuttle bar slidably mounted in a close-fit manner in said housing subjacent said orifice, said shuttle bar having a metering aperture registrable with said orifice to receive a metered volume of dry powder, means biasing said shuttle bar in a first position, means to rec...