Scaler for cleaning teeth

Details Scaler for cleaning teeth Scaler for cleaning teeth

1988-05-20

1990-12-25

Swiatek, Robert P.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

433122, 433118, A61C 107

Patent

active

049798995

ABSTRACT:
The scaler includes a housing which is an angle piece and includes a grip housing and an instrument housing positioned at an angle to the grip housing. A scraper is inserted in a bearing sleeve mounted in bearings in the instrument housing and can be moved into different angular positions relative to the circumference of the bearing sleeve and can be fixed by rotating a coupling ring. A drive shaft is mounted in the grip housing. The drive shaft at its end face is provided with an eccentrically positioned driving pin and a coaxial bearing pin. An eccentric member is pivotable within an angular range on the bearing pin. This range is determined by the size of a recess formed in the eccentric member. A spring-loaded rocker cooperates with the eccentric member to perform a rapid jerky movement of the scraper relative to the instrument housing when the eccentric surface formed in the eccentric member faces the rocker.

REFERENCES:
patent: 2924012 (1960-02-01), Ellis
patent: 3967380 (1976-07-01), Malata et al.
patent: 4175324 (1979-11-01), Arai
patent: 4341519 (1982-07-01), Kuhn et al.
patent: 4781588 (1988-11-01), Granier

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