Description  Claims  Drawing  Cited references 

US7828960B   [0005] 
US20060080050A1   [0005] 
US20080016960A1   [0005] 
US20090071243A   [0005] 
US2004002822A1   [0005] 
US7186346B   [0041]  [0042] 
US6517715B   [0041] 
US7208080B   [0042] 
US6491830B   [0042]