HOT WARMERS AND SET THAT INCLUDES SUCH HOT WARMERS.

摘要

A plate warmer (10) comprising: - a part (11) of the metal plate having an upper side (16) where an object (7) to be kept warm can be placed, a lower side (17) and having an edge of the plate (24) defining the circumference of the plate (11), - an electric heating element (15) fixed on the lower side (17) of the part of the plate (11) and equipped to heat the mentioned part of the plate (11), - an electrically insulating plastic ring (31), which has a pressurized connection (29, 30) on an outer surface to engage with an edge of the hole (28) of a substantially circular hole (13) in a frame (2), characterized in that, the ring is formed of a plastic material having a Shore hardness on the A scale of between 55 and 85, the ring having an outer edge tapered down to engage with the edge of the hole ( 28) of the corresponding tapered in a fluid-tight manner, the ring being pro seen along an inner surface with a circular groove (26) joined on three sides by the ring material to receive the edge (24) of the circular plate in said groove (26) in a water-tight manner.