PNEUMATIC-ELECTRIC CONVERTER FOR DENTAL INSTRUMENTS

A dental device having at least one pneumatically operable handpiece, the rotational speed of which can be influenced by a control element designed as a foot-operated switch, and a further handpiece, which can be driven by means of an electric drive, and the compressed air present at the pneumatic h...

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Bibliographische Detailangaben
Hauptverfasser: LEHMANN, KARL-HEINZ, ALTENDORF, HANS-WALTER
Format: Patent
Sprache:eng ; fre ; ger
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Beschreibung
Zusammenfassung:A dental device having at least one pneumatically operable handpiece, the rotational speed of which can be influenced by a control element designed as a foot-operated switch, and a further handpiece, which can be driven by means of an electric drive, and the compressed air present at the pneumatic handpiece influences the control of the electric drive. A graduated filter is mounted on a pneumatically actuated hollow body and the graduated filter has regions thereon which can be sensed by a light barrier generating an electric signal in dependence on the properties of the regions.