About: http://webisa.webdatacommons.org/56045250

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	Although a preferred embodiment employs a single compression spring 26 to create the closing force, one of ordinary skill in the art will appreciate that varying numbers and types of springs may be used.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com