| 摘要 |
A dental installation for at least one dental handpiece having a compressed air motor drive which is supplied from a compressed air source through a compressed air conduit, and whose rotational speed is variable by means of a control valve controlling the compressed air through the intermediary of a pneumatic installation which, preferably, is constructed in the shape of a foot or pedal switch. In an installation of the above-mentioned type, by means of which there is achievable a technical operational simplification, in addition to one or more handpieces having compressed air motor drives, there is also provided a further handpiece with an electric motor drive. In particular, it becomes feasible to effect a subsequent equipping of a purely pneumatically designed dental apparatus, which only incorporates handpieces having pneumatic drives, with a handpiece having an electric motor drive, without necessitating any significant tampering with the apparatus.
|
