Control for dental air-polisher

Details Control for dental air-polisher Control for dental air-polisher

1990-11-28

1993-02-16

Swiatek, Robert P.

Dentistry

Apparatus

Having intra-oral dispensing means

433 80, 433 84, 433 98, 433 28, A61C 302, A61C 110, A61C 102, A61G 1702

Patent

active

051866250

ABSTRACT:
A control unit for an air-polisher is provided, wherein a bleed air line and an air/abrasive line both communicate with a diaphragm valve which in turn communicates with an air polisher handpiece which is stored in a bracket or other holder. The diaphragm valve is closed when the handpiece is in an idle mode and not in its bracket. This blocks pressurized container air and bleed air from carrying water and abrasive out of the nozzle immediately after the handpiece is deactivated, without allowing soluble abrasive within the handpiece to form a plug therein.

REFERENCES:
patent: 2245036 (1941-06-01), Henschel
patent: 3858358 (1975-01-01), Stachowiak et al.
patent: 3863028 (1975-02-01), Vit
patent: 3882638 (1975-05-01), Black
patent: 3991473 (1976-11-01), Morgan
patent: 4482322 (1984-11-01), Hain et al.
patent: 4487582 (1984-12-01), Varrin
patent: 4494932 (1985-01-01), Rzewinski

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