S Potts, T Johnson, F Voelker, GD Young - US Patent 8,787,651, 2014 - Google Patents
This application claims priority to US Provisional Ser. No. 61/387,298, filed Sep. 28, 2010;
US Provisional Ser. No. 61/434,428, filed Jan. 19, 2011; and US Provisional Ser. No …