About: http://webisa.webdatacommons.org/219078036

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	This invention relates to valve assemblies and in particular to valve assemblies for controlling the movement of flowable, solid or partly solid material in bulk, especially large, granular, drymaterial.
http://www.w3.org/ns/prov#wasQuotedFrom	patentgenius.com