Lever actuated chuck mechanism for dental handpiece

Details Lever actuated chuck mechanism for dental handpiece Lever actuated chuck mechanism for dental handpiece

1984-11-21

1985-08-20

Peshock, Robert

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

A61C 114

Patent

active

045361576

ABSTRACT:
In a dental handpiece, a drawback bur chuck actuable to open by a cam lever mounted atop the handpiece head and acting axially downward on the chuck against a spring which urges the chuck upward into clamping engagement with a bur shank when the cam lever is in its closed position. The cam lever is rotatable on the axis of the chuck to a position to suit the convenience of the user. The chuck is removable for cleaning and positive means are provided to prevent over travel of the chuck to thereby prevent its permanent deformation.

REFERENCES:
patent: 4436512 (1984-03-01), Garcia
patent: 4493645 (1985-01-01), Nakanishi

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