About: http://webisa.webdatacommons.org/293596051

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	In an alternative embodiment, instead of protruding members 410 attached to the wall of the casing 412, the packer or other sealing element can have a wider outer diameter to engage the inner wall of the casing 412.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com