Compliantly mountable turbine cartridge assembly for gas-driven

Details Compliantly mountable turbine cartridge assembly for gas-driven Compliantly mountable turbine cartridge assembly for gas-driven

1981-11-02

1985-08-06

Peshock, Robert

Dentistry

Apparatus

Having motor or means to transmit motion from motor to tool

433126, A61C 105

Patent

active

RE0319651

ABSTRACT:
A single-unit turbine cartridge assembly for a gas-driven dental handpiece includes a pair of bearing assemblies mounted on a turbine rotor shaft and a ring of resilient material around each bearing assembly. The resilient ring provides radial support for the turbine cartridge assembly within the housing of the handpiece and substantially dampens the transfer of vibration from the cartridge assembly to the handpiece during use of the handpiece. The turbine cartridge assembly may optionally include bearing axial pre-load means in association with one or more of the bearing assemblies. The turbine cartridge assembly also includes means for retaining the resilient radial support means and the bearing axial preload means, when used, in association with the bearing assemblies, so as to permit removal, and reinstallation, of the cartridge assembly as an entire unit from, and to, the housing in the dental handpiece.

REFERENCES:
patent: 2945299 (1960-07-01), Fritz
patent: 3092908 (1963-06-01), Flatland
patent: 3218028 (1965-11-01), Borden
patent: 3325899 (1967-06-01), Staunt
patent: 3380162 (1968-04-01), Heathe
patent: 3381387 (1968-05-01), Lawrence et al.
patent: 3888008 (1975-06-01), Lake et al.
patent: 4071954 (1978-02-01), Eibofner

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