Patent pdf and app. http://patentimages.storage.googleapis.com/pdfs/US20140031960.pdf http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2FPTO%2Fsearch-bool.html&r=1&f=G&l=50&co1=AND&d=PG01&s1=20140031960&OS=20140031960&RS=20140031960