Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1977-11-22
1980-07-15
Mancene, Louis G.
Dentistry
Apparatus
Having intra-oral dispensing means
A61C 110
Patent
active
042126401
ABSTRACT:
A dental handpiece having a sleeve, an axial drive shaft in the sleeve for driving a dental instrument at one end of the handpiece, a first coolant supply line in the handpiece, a second coolant supply line extending axially towards the dental instrument, and a coolant duct in the wall of the sleeve which intercommunicates the first and second coolant lines. The coolant duct extends rectilinearly and generally radially between an inner end which faces the interior of the sleeve and which communicates with the first coolant line, and an outer end which communicates with and is releasably connected to the second line at a location in the wall of the sleeve and which permits manipulation externally of the handpiece for releasing and connecting the duct and the second line.
REFERENCES:
patent: 276912 (1883-05-01), Starr
patent: 1747947 (1930-02-01), Pannwitz
patent: 2937444 (1960-05-01), Kern
patent: 3298701 (1967-01-01), Borden
patent: 3936940 (1976-02-01), Loge
patent: 4007529 (1977-02-01), Fleer
Eibofner Eugen
Kuhn Bernhard
Loge Hans
Reich Heinrich
Kaltenbach & Voigt GmbH & Co.
Mancene Louis G.
Wilson John J.
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