Abstract: An arrangement for the dispensing of cleaning and/or lubricating media, which can be placed under pressure in a receptacle, as maintenance media to movable elements containing medical, and particularly dental handpieces. The maintenance medium is forced by means of a pressure drive out of a dispensing orifice of the receptacle through an inlet opening of the handpiece which is attached to the receptacle at the dispensing orifice and whereby, during the forcing of the maintenance medium into the movable elements of the handpiece, they are placeable into motion through a motion drive. The maintenance medium can be formed by liquid cleaning and/or lubricating media, for instance, such as oil.

Abstract: A dental treatment installation comprising at least one dental handpiece having an air operated drive motor and an outlet for discharging operating media used for dental purposes, a spray handpiece, a control arrangement for controlling the supply of operating media to the handpieces, and a storage device for the handpieces having storage switching-means which are arranged to place the handpieces on stand-by to receive operating media upon extraction of the handpieces from the storage device. The control arrangement includes supply sleeves having ducts for supplying operating media to both types of handpiece, couplings for releasably coupling the supply sleeves to the handpieces, and a foot-operated device for regulating the supply of operating media to the handpieces and including first switching-means for controlling the supply of air to drive the motor of the dental handpiece and second switching means for controlling the supply of spray to the dental handpiece.

Abstract: A circuit arrangement is provided for controlling the drive of dental treatment instruments by means of driving devices associated therewith and the operating data of which are adapted to be fed to a separate forward/backward counter when the particular treatment instrument is selected for use. A starter switch is connected to the forward/backward counter and is operable, when actuated, to vary the particular stored count of the counter step-wise for the purpose of varying the operating data and for transmission to a control element, for the control thereof, which is associated with the particular treatment instrument. Upon actuation of the starter switch in order to vary the stored count of the forward/backward counter, the counting speed of the counter is increased with increasing actuation time of the starter switch by reason of the fact that the counter receives a number of counter pulses which increase per unit time.

Abstract: A dental handpiece with a gripping sleeve-like base member which is detachably connected with a headpiece mounting a work tool, a connecting sleeve of the headpiece being insertable into the power-take off end of the base member, wherein a roll body is radially movably supported in each of one or more cutouts in the base member wall, inwardly extending therethrough with a portion of its volume, which is movable through the intermediary of a coupling element movably arranged on the base member, and which includes an inclined plane for the engagement with the roll body under the assumption of a clamping fit in contact against the connecting sleeve.

Abstract: An arrangement for the conveyance of a sterile liquid to a surgical treating or operating location, consisting of a liquid receptacle containing the sterile liquid, from which there can be dispensed the sterile liquid under the effect of pressure through a dispensing conduit from the dispensing end thereof, wherein the dispensing conduit is provided with a valve arrangement for regulating the throughflow.

Abstract: A supply unit, consisting of a plurality of adjacent arranged modular-like carriers each of which is associated with a dental handpiece, each of which has associated therewith a supply element for the individual supply of the associated handpiece, wherein the supply elements as well as the carriers are arranged adjacent each other and are provided with through conduits extending through collective supply elements and which carry the supply media for the handpieces. The conduits are connected, through connecting conduits extending within the hollow-constructed carrier, with the respective handpiece whereby, further supply components are fastened within the interior of each carrier onto a holder, and which are connected intermediate the connecting conduits leading from the associated supply element to the therewith associated handpiece.

Abstract: A surgical dental or dental technician's angled vibration member consisting of a gripping sleeve portion having a drive shaft supported therein, and an end or head sleeve portion which is arranged at one end of the gripping sleeve portion, whose axis extends at an angle to the axis of the gripping sleeve portion and within which an impact piston is axially reciprocable for a return stroke through the intermediary of an eccentric located on the end of the drive shaft. The impact piston, for the engagement of the eccentric, includes a side recess with a stop, which is provided along its edge and wherein, after passing beyond the stop, has associated therewith an operating spring for effecting the operating stroke, the spring being stressed prior to reaching the stop whereby the impact piston will during its operating stroke impart an impact to an axially movably supported tamping-type vibration tool located at the end inserted in the interior of the head sleeve portion.

Abstract: An arrangement for a dental treatment facility for detecting the removal of work tools and/or drive elements utilized during the operation of the work tools from receiving locations provided therefor.

Abstract: A servicing composition which is sprayed from a container on or into a medical instrument e.g. a dental handpiece. The servicing composition includes an oil and propellant mixture for lubrication purposes but, for improved sterlizing purposes during subsequent hot-air heating and sterilizing of a medical instrument, an alcohol-aldehyde active substance combination in a proportion of 5 to 15% by weight is added to the mixture which is sprayed on the instrument. The preferred alcohol is isopropanol and the preferred aldehyde is formaldehyde or a succinic acid dialdehyde complex, and the preferred ratio of alcohol to aldehyde is 1:1.

Abstract: A dental handpiece includes a drive shaft rotatably supported interiorly thereof, the drive shaft being hollow at least at the operating end thereof and having an internal thread; and a tubular friction collet in the hollow space having an external thread end evidencing in the inoperative condition thereof inwardly bent resilient tongues formed by a plurality of slits for the receipt and gripping of the shaft of an implement. The external thread of the friction collet is arranged at the implement-sided end thereof as in a threaded collet, the friction collet having an external conical surface and the hollow drive shaft having an internal conical surface cooperating with the external conical surface.

Abstract: A compressed-air dental motor includes a housing, a rotor, a compressed air inlet conduit supplying compressed air for placing the rotor into rotation, and a rotor shaft in the rotor connectable with a work tool, such as a drill. A valve member in the housing associated with the compressed-air inlet conduit is adapted to vary the inlet of compressed air for each unit of time, and an adjusting device is provided for controlling the valve member. The rotor shaft includes an axially displaceable component for controlling the valve member in direct mechanical dependence upon the torque at the work tool so as to form the adjusting device into a torque-dependent adjusting device.

Abstract: A dental handpiece consisting of a driving sleeve which includes a driving arrangement, a base sleeve and a head sleeve including a dental work tool. At least the base sleeve and the head sleeve are detachably interconnected for the purpose of exchanging the head sleeve, and in which a shaft is supported within the base sleeve which is in rotational connection with the driving arrangement in the driving sleeve, and which is provided with a rotation-transmitting element for engagement with a shaft component supported within the head sleeve.

Abstract: A dental handpiece having a holding sleeve, an air-driven unit mounted at one end of the sleeve to drive a dental tool, and a connecting member releasably and relatively rotatably connected to the other end of the sleeve. A supply hose for conveying fluid pressure media is coupled releasably and non-rotatably to the end of the connecting member remote from the sleeve, and communicating fluid pressure lines in the connecting member and in the sleeve convey fluid pressure media between the hose and consumers of fluid pressure media at the free end of the sleeve, such as the tool-drive unit. The releasable connection between the connecting member and the sleeve is provided by a pin on the connecting member which is received by a passage in the sleeve. The fluid pressure lines in the connecting member extend also generally lengthwise along the pin, but terminate in radial portions having outlet apertures which are axially spaced along the outer periphery of the pin.

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.