A - Human Necessities – 61 – C
Patent
A - Human Necessities
61
C
83/14, 83/16
A61C 1/05 (2006.01)
Patent
CA 1145596
PA-921-EPO Abstract of the Disclosure A single-unit turbine cartridge assembly for a gas- driven dental handpiece includes a pair of bearing assem- blies 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 cart- ridge assembly also includes means for retaining the resilient radial support means and the bearing axial pre- load 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. PA-921-EPO
336624
Smart & Biggar
Star Dental Manufacturing Co. Inc.
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