Dental handpiece

Details Dental handpiece Dental handpiece

1980-07-09

1982-03-23

Mancene, Gene

Dentistry

Apparatus

Having intra-oral dispensing means

433126, A61C 112

Patent

active

043210392

ABSTRACT:
A dental handpiece comprising a drive section with a drive shaft for driving a tool receiving socket mounted for rotation in an end of a handle section which handle section is coupled for relative rotation on the drive section, said dental handpiece having at least one cooling medium line being formed by a line segment arranged in each of said sections for conveying the medium to a nozzle adjacent the socket, and a rotatable coupling for the cooling medium lines characterized by the rotatable coupling being formed by a first and second sleeves being telescopically assembled together for relative rotation, one of said sleeves having an annular groove for each of the cooling medium lines and the other of the two sleeves having a radial opening in communication with each of the annular channels, said sleeves being detachably connected to the respective section to rotate therewith.

REFERENCES:
patent: 3894338 (1975-07-01), Loge et al.
patent: 3936940 (1976-02-01), Loge
patent: 4184256 (1980-01-01), Loge et al.
patent: 4212640 (1980-07-01), Loge et al.
patent: 4217101 (1980-08-01), Loge

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