Patent · US Expired

Dental treatment apparatus

US4180812A · kind A · utility

29Cited by
3References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 31, 1978
Grant dateDec 25, 1979
Priority date
Expiry dateMar 31, 1998

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T74/20888
  • WIPO fieldControl
  • WIPO sectorInstruments

Abstract

A dental treatment apparatus having a plurality of dental instruments releasably retained in an instrument-holding device. A control and display arrangement controls the operation of an instrument upon extraction from the holding device, and displays the magnitude of an operating parameter of the instrument on a display device. A control data store is arranged to store pre-determined fixed control data values for the operating parameters of the instruments. To enable the user to alter the predetermined fixed values, a forward-backward counter is connected to the data store which can also store the altered values. A data converter is connected to the counter and to the display device for converting the instantaneous value stored in the data store to a corresponding service datum instantaneous value to be displayed by the display device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.