About: http://webisa.webdatacommons.org/52208243

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Therefore, the prior art in which an additional connection tube is used between two cushions or between a cushion and other components (namely, a pump, or pressure valve) fails to provide optimal effectiveness with regard to air leakage.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com