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US 11,378,336 B2Granted
Dental cooling method and dental cooling device
AssigneeIvoclar Vivadent AG
InventorsRudolf Jussel, Aleksandar Tubic
Life of this patent
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Abstract
A dental cooling device is provided, comprising a muffle (12) and a medium (30) as cooling source. The medium (30), in particular a liquid medium (30), is stored at least in the outer region of the muffle (12) and has an evaporation temperature higher than the room temperature. The quantity of medium (30) is calculated in advance such that the enthalpy of evaporation of the medium is substantially destroyed or consumed when cooling the muffle (12) to the evaporation temperature.
Claims21
A dental cooling method for cooling a muffle (12) comprising
- cooling the muffle with a cooling source (12) to a divesting temperature of less than 80° C.,
- wherein the cooling source is a medium (30) having a melting or evaporation temperature higher than room temperature,
- wherein the medium (30) is fed to the muffle (12),
- wherein the cooling is effected by latent heat accumulators,
- wherein a quantity of the medium (30) is at least sufficient such that the muffle (12) is cooled to at least one phase transition temperature of the medium (30), and wherein the medium (30) is accommodated in a high-temperature-resistant, fibrous mass comprising a high-temperature thermal insulation fiber brought into contact with the muffle (12) for cooling the muffle.
2 more elements
A dental cooling device comprising
- a muffle (12) and
- a medium (30) as cooling source,
- wherein the medium (30) is stored at least in an outer circumferential region of the muffle (12) and has an evaporation temperature exceeding room temperature,
- wherein the quantity of the medium (30) is calculated in advance such that the thermal energy of the muffle is substantially converted into enthalpy of vaporization and/or enthalpy of fusion of the medium (30) as a result of cooling the muffle (12), and the thermal energy is consumed, and
- wherein the medium (30) is accommodated in a high-temperature-resistant, fibrous mass comprising a high-temperature thermal insulation fiber brought into contact with the muffle (12) for cooling the muffle.
2 more elements
Dependencies are inferred from the claim text.