초록 ▼

Vacuum insulated containers are disclosed in which the usual metallic coating applied to the vacuum filler is omitted. In its place an electrically nonconducting, nonadsorbent granular material, such as finely divided silica, is employed in the annular, evacuated space to reduce infrared radiation l

Vacuum insulated containers are disclosed in which the usual metallic coating applied to the vacuum filler is omitted. In its place an electrically nonconducting, nonadsorbent granular material, such as finely divided silica, is employed in the annular, evacuated space to reduce infrared radiation loss. The construction is safe for use in microwave ovens and has a relatively high insulating efficiency as compared with vacuum fillers without infra barriers and nonvacuum insulated containers.

대표청구항 ▼

A vacuum insulated container construction including an infrared radiation barrier which is safe for use in microwave ovens comprising: (a) a glass filler formed in the general shape of a container having inner and outer walls and defining an annular space between said walls, air being substantially

A vacuum insulated container construction including an infrared radiation barrier which is safe for use in microwave ovens comprising: (a) a glass filler formed in the general shape of a container having inner and outer walls and defining an annular space between said walls, air being substantially evacuated from said annular space, said inner wall defining a thermal insulating container interior, (b) an infrared barrier formed by an electrically nonconducting granular material which does not adsorb microwave energy provided in the annular space between said walls in an amount sufficient to substantially fill said space, (c) means surrounding said filler, at least on the outer wall thereof, for protecting against damage to said filler.