Loading patent…
OwnerFrank Henrichsen, Flemming A. Hansen +1inventors
InventorsFrank Henrichsen, Flemming A. Hansen, Kim Sorensen
Estimating the term…
In a dental apparatus, in which each of a number of instruments is controlled by a control circuit common to the instruments, which are connected with a common operator unit having a control member which is movable in planar directions out of a home position, auxiliary functions not related to the instrument operation may be carried out by means of the common operator unit by switching the apparatus to a second mode of operation, when all the instruments assume respective resting positions in an instrument carrier. Moreover, also auxiliary functions directly related to the instrument operation may be carried out by the common operator unit in a first mode of operation by actuating the control member thereof with a movement different from the instrument energizing movement. The movement for energizing such an auxiliary function may have another direction and/or a shorter duration than the instrument energizing movement. In addition, the apparatus may be constructed to energize an air blow automatically after each operation of a drilling instrument when the control member of the common operator unit returns to the home position in the first mode of operation.
A dental apparatus comprising at least one drilling instrument and an operator unit with a control member which is movable against spring action out of home position for energizing and controlling said drilling instrument, an instrument energizing device connected between said drilling instrument and said operator unit, a water spraying device and an air blowing device provided on said drilling instrument, water and air supplies connected with said water spraying and air blowing devices, valve devices arranged between said water and air supplies and said water spraying and air blowing device, and water spray and air blow energizing devices connected to said valve devices and said instrument energizing device for producing a coolant spray during operation of the instrument, a selectively actuatable air blow energizing device with an associated valve device being provided at least for said air blowing device, said selectively actuatable air blow energizing device being connected to said operator unit for automatically supplying an opening signal to its associated valve device in response to the control member of said operator unit returning to said home position following a movement out of said position.
Dependencies are inferred from the claim text.