초록 ▼

An internally temperature controlled heat blanket. The heat blanket includes an outer layer of protecting foam fiberglass that affords operator safety, a layer of closed cell silicone foam which provides thermal and electrical insulation, a layer of thermally conductive mesh, another layer of therma

An internally temperature controlled heat blanket. The heat blanket includes an outer layer of protecting foam fiberglass that affords operator safety, a layer of closed cell silicone foam which provides thermal and electrical insulation, a layer of thermally conductive mesh, another layer of thermally conductive silicone with holes cut into it, the holes containing positive temperature coefficient (PTC) heating elements, another layer of conductive mesh, a layer of thermally conductive silicone, and an inner layer of moderately conductive cured silicone or foam.

대표청구항 ▼

[ What is claimed is:] [1.] A heat blanket comprising in combination:a layer of thermally conductive silicone containing a two-dimensional array of positive temperature coefficient (PTC) heating elements;first and second layers of conductive mesh;said layer of thermally conductive silicone containin

[ What is claimed is:] [1.] A heat blanket comprising in combination:a layer of thermally conductive silicone containing a two-dimensional array of positive temperature coefficient (PTC) heating elements;first and second layers of conductive mesh;said layer of thermally conductive silicone containing a said two dimensional array of PTC heating elements sandwiched between said first and second layers of conductive mesh;said first and second layers of conductive mesh providing electrical connections for said two-dimensional array of positive temperature coefficient (PTC) heating elements;first and second layers of thermally conductive silicone;said first and second layers of conductive mesh sandwiched between said first and second layers of thermally conductive silicone;first and second thermal insulating layers; and,said first and second layers of thermally conductive silicone sandwiched between said first and second thermal insulating layers.