Dental furnace
AssigneeIvoclar Vivadent AG
InventorRudolf Jussel
Life of this patent
Estimating the term…
Abstract
The invention concerns a dental furnace, with a furnace base and with a furnace hood, wherein the furnace hood includes a firing chamber for the accommodation of dental restorations, with a temperature sensor that records the temperature of the dental restoration and which is connected to a control device which controls the dental furnace, and the dental furnace (10) includes a drive unit (18) for the furnace hood (16) and the control device (30) controls the drive unit (18) based on the temperature recorded by the temperature sensor (20), namely opens the furnace hood.
Claims14
Dental furnace comprising
- a furnace base,
- a furnace hood, wherein the furnace hood includes a firing chamber for the accommodation of dental restorations and a drive unit for the relative movement between the furnace hood and the furnace base, with a temperature sensor that records the temperature of the dental restorations and which is connected to a control device which controls the dental furnace,
- wherein the control device controls the drive unit based on the temperature recorded by the temperature sensor and opens the furnace hood relative to the furnace base,
- wherein the temperature sensor is an optical sensor and comprises a two-dimensional sensor array,
- wherein the temperature sensor is positioned outside of the firing chamber,
- wherein ambient temperature and dimensions of the dental restoration and/or a muffle which accommodates the dental restoration can be recorded with the aid of the temperature sensor, and
- wherein the temperature sensor also records the presence or absence of the dental restoration and the moment of removal of the dental restoration and forwards a result of the recording to the control device, wherein the control device stores the result.
Process for controlling a dental furnace, wherein the dental furnace is provided with a furnace base and a furnace hood which can be moved with the help of a drive unit, and the furnace hood includes a firing chamber for accommodation of dental restorations, and wherein the dental furnace is further provided with a temperature sensor which is connected to a control device and which is positioned outside the firing chamber, wherein the method comprises the following steps
- the control device opens the furnace hood after expiry of a completed firing process corresponding to a predetermined value stored in the control device;
- the temperature sensor records the temperature of the dental restoration;
- and
- if the temperature of the dental restoration recorded by the temperature sensor falls below a value stored in the control device, the control device completely opens the furnace hood with the help of the drive unit and/or outputs a signal to the user via a signalling device connected to the control device, and
- wherein the temperature sensor also records the presence or absence of the dental restoration and the moment of removal of the dental restoration and forwards a result of the recording to the control device, wherein the control device stores the result.
Dependencies are inferred from the claim text.