Apparatus for dental treatment provided with check valve in flui

Details Apparatus for dental treatment provided with check valve in flui Apparatus for dental treatment provided with check valve in flui

1987-04-22

1989-01-10

Jones, Larry

Dentistry

Apparatus

Including activator or regulator for controller or drive

222571, 141116, 1376142, 433101, F27D 108

Patent

active

047970987

ABSTRACT:
A dental treatment apparatus includes a pressurized fluid source for pressurizing and supplying a fluid necessary for performing dental treatment operation and fluid conduits for conveying the pressurized fluid. The pressurized fluid source and a handpiece communicate with each other by the fluid conduits and a valving member is interposed in the liquid conduit for sucking the liquid during in a direction opposite to the liquid supply direction when the dental treatment operation is terminated. A check valve is interposed in the liquid conduit between the valving member and the dental treatment tool provided at the extreme end of the dental handpiece.

REFERENCES:
patent: 2982446 (1961-05-01), Lio Lios et al.
patent: 4062480 (1977-12-01), Bjorklund

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