<http://webisa.webdatacommons.org/388135191>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/388135191>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<freepatentsonline.com> .
<http://webisa.webdatacommons.org/388135191>	<http://www.w3.org/ns/prov#value>	"A valve, such as in FIG. 4A can be used instead of the failure membrane in FIG. 1A. A membrane can be used that is not pressure-activated." .
<http://webisa.webdatacommons.org/prov/464170073>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/388135191> .