Description  Claims  Drawing  Cited references 

US2014038460A1   [0005] 
US6069960A1   [0006] 
US2009296952A1   [0007]  [0007]  [0007] 
US2011161050A1   [0008] 
EP2706463A1   [0009] 
US20130293240A1   [0010]