Insulated shelter for pet animals and method of manufacture thereof

摘要

A shelter for pet animals is formed of a molded unitary polyethylene plastic shell having a concave interior surface defining a cavity for sheltering a pet animal. The structure of the shell is formed of a solidified foam core encased within a rigid skin. The pet animal shelter is fabricated by heating a charge of polyethylene plastic under pressure and releasing and dispersing a blowing agent, such as nitrogen gas, into the polyethylene charge. The charge is passed into a mold shaped in the form of a shelter for pet animals. Pressure is reduced on the polyethylene charge in the mold, thereby, allowing the blowing agent to expand the interior of the plastic charge to form a foam core encapsulated within a polyethylene skin. The pet animal shelter insulates the cavity enclosed therewithin from both heat and cold.