Dental tool coupling for disposable tooth polisher

Details Dental tool coupling for disposable tooth polisher Dental tool coupling for disposable tooth polisher

1994-07-29

1996-03-12

O'Connor, Cary E.

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

433125, A61C 108

Patent

active

054981590

ABSTRACT:
An improved dental tool coupling apparatus for coupling disposable tool heads to drive housings. A tubular nose of the housing receives a tool head shaft, which extends within a tubular output shaft coupled to a drive means. The output shaft includes a plurality of radially disposed sockets containing balls, the balls being biased into an interior space of the tubular output shaft. Upon axial coupling of the disposable tool head to the housing, the tool head shaft inserts within the tubular output shaft so that the balls create a series of axial grooves in the tool head shaft. A circular spring retainer surrounding the output shaft biases the balls into the axial grooves to maintain a certain level of rotational coupling therebetween.

REFERENCES:
patent: 3631597 (1972-01-01), Lieb et al.
patent: 4211009 (1980-07-01), Leonard
patent: 4403958 (1983-09-01), Lohn
patent: 4403959 (1983-09-01), Hatakeyama
patent: 4643675 (1987-02-01), Kuhn
patent: 4647081 (1987-03-01), Landgraf et al.
patent: 5234338 (1993-08-01), Young

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