Dentistry – Apparatus – Having means to emit radiation or facilitate viewing of the...
Patent
1981-03-30
1984-02-14
Wilson, John J.
Dentistry
Apparatus
Having means to emit radiation or facilitate viewing of the...
433126, A61C 100, A61C 108
Patent
active
044314124
ABSTRACT:
A dental handpiece has two sleeves rotatable relative to each other about a longitudinal axis. A chuck for a burr is driven by a gas turbine mounted in one of the sleeves. Air to drive the turbine is conducted through both sleeves by passages having a joint swivelling about the axis. Similarly, light, cleansing air and water are carried to the turbine vicinity and through swivel connections so that relative rotation of the handpiece sleeves can always be accomplished without interrupting any of the flows between the two sleeves.
REFERENCES:
patent: 3397457 (1968-08-01), Gosselin
patent: 3893242 (1975-07-01), Lieb et al.
patent: 3897134 (1975-07-01), Scrivo et al.
patent: 4080737 (1978-03-01), Fleer
patent: 4217101 (1980-08-01), Loge
patent: 4260382 (1981-04-01), Thomson
Lares Albert J.
Lares Joseph P.
Lares Mfg. Co., Inc.
Wilson John J.
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