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US 8,410,404 B2Granted
Cooking appliance
AssigneeLG Electronics Inc.
InventorsChae Hyun Baek, Jeong Ho Lee, Yong Soo Lee, Seung Chan Lee, Yang Kyeong Kim, Seung Jo Baek, Young Seok Kim
Life of this patent
Estimating the term…
Abstract
The present invention includes a cooking appliance with an enamel composition. The enamel composition includes a heat resistance, chemical resistance, wear resistance, and pollution resistance, such that the cooking appliance withstands high temperature, acid or alkali and is readily cleaned.
Claims17
A cooking appliance, comprising:
- a cavity forming a cooking chamber;
- a door that selectively opens and closes the cooking chamber;
- at least one heating source that provides heat to heat food in the cooking chamber;
- and
- a coating layer coating an inner surface of the cavity,
- wherein the coating layer is formed by an enamel composition produced by one frit including P2O5, B2O3, and SnO, and
- wherein
- P2O5 is 24.8 wt % to 34.3 wt %;
- B2O3 is 1.0 wt % to 10.0 wt %;
- and
- SnO is 0.5 wt % to 5.0 wt %.
8 more elements
The cooking appliance comprising the enamel composition, wherein the enamel composition includes P2O5, SiO2, Al2O3, ZrO2, V2O5, B2O3, SnO, and R2O,-wherein R is at least one of Li, Na, and K, and
- wherein
- P2O5 is 24.8 wt % to 34.3 wt %;
- SiO2 is 10.8 wt % to 22.2 wt %;
- Al2O3 is 10.2 wt % to 28.4 wt %;
- ZrO2 is 5.0 wt % to 17.9 wt %;
- V2O5 is 0.9 wt % to 10.0 wt %,
- B2O3 is 1.0 wt % to 10.0 wt %;
- R2O is 0.4 wt % to 20.8 wt %;
- and
- SnO is 0.5 wt % to 5.0 wt %.
7 more elements
Dependencies are inferred from the claim text.