Pet door, particularly for domestic animals such as dogs and cats, has swinging door or shuttle valve that is made of heat insulating material

摘要

The pet door has a swinging door or a shuttle valve (1) that is made of a heat insulating material. The heat insulating material is made of stone wool, fiber glass, wood fiber insulation boards, cellulose compound elements, wood wool, cellulose, hemp, flax, coco, wool, reed plates, artificial organic foam such as polyethylene, polystyrene, neopor, polyurethane, mineral foam such as aerated concrete, pumice stone, pearlites, blowing clay, blowing mica, calcium silicate plates, foam glass, cellulose flakes, hemp light loam and blowing glass or cork.