An infant incubator is disclosed having a hood that encloses the infant compartment. In the base of the incubator is the heating air and ducting means and which provides heated through an ever open outlet in the base and which heated air passes from the base through a flow path formed by the hood that...http://www.google.com.au/patents/US4936824?utm_source=gb-gplus-sharePatent US4936824 - Infant incubator with air curtain