Dental handpiece

Details Dental handpiece Dental handpiece

1974-04-08

1976-06-15

Mancene, Louis G.

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural distributing means immediately upstream of runner

415503, A61C 110

Patent

active

039627896

ABSTRACT:
An air driven dental handpiece has a housing defining a rotor chamber and also defining an inlet duct leading into the chamber as well as an outlet duct opening from the chamber. There is a spindle mounted in the housing for rotation in the chamber about an axis. A rotor in the chamber is fast on the spindle. The rotor has a hub engaging the spindle and extending for a predetermined axial distance. A rotor web extends radially from the hub and is axially shorter than the hub. Blades extend radially from the web and are axially longer than the web to leave annular cutaway portions on opposite sides of the rotor between the hub and the blades.

REFERENCES:
patent: 1838982 (1931-12-01), Angell
patent: 2439910 (1948-04-01), Snyder
patent: 2564309 (1951-08-01), Norgren
patent: 2792073 (1957-05-01), Boss
patent: 2842062 (1958-07-01), Wright
patent: 3197869 (1965-08-01), Staunt
patent: 3261426 (1966-07-01), Kuhlman
patent: 3298103 (1967-01-01), Maurer
patent: 3380162 (1968-04-01), Heathe
patent: 3592566 (1971-07-01), Beardslee
patent: 3685287 (1972-08-01), Dooley

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