Patent
1974-03-01
1976-07-20
Peshock, Robert
A61C 110
Patent
active
039698220
ABSTRACT:
In a dentist's handpiece, a porous, static pressure air bearing device includes a rotatable shaft for mounting thereon a cutting tool, a bearing case, an air bearing portion provided in the bearing case for supporting the rotatable shaft, and a turbine blade formed integrally with the shaft or mounted on the shaft. The air bearing portion is formed of porous material.
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Lever Jack Q.
Nippon Seiko Kabushiki Kaisha
Peshock Robert
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