ApplicationNo. 524871 filed on 11/18/1974
US Classes:5/699, Having waterproof or allergenproof outer surface5/706, Having confined gas (e.g., air mattress)5/727, Sectional with regard to firmness5/939WITH MICROPOROUS MATERIAL
ExaminersPrimary: Gilliam, Paul R.
Assistant: Calvert, Andrew M.
Attorney, Agent or Firm
Foreign Application Priority Data1973-11-20 UK
AbstractThe disclosure relates to a support appliance in the form of a mattress formed from a resilient foam material having interconnecting air transmitting cells, the upper surface of the mattress having at least an impedance to gas flow whilst permitting transmission of water vapour from the outer to the inner side thereof for removal by air flow through the mattress effected by an air pump.