Description  Claims  Drawing  Cited references 

US2005085836A1   [0005] 
US2004153110A1   [0005] 
US5078723A   [0005] 
US2009270889A1   [0005] 
US20050055040A1   [0005] 
US7862575B   [0027] 
US7967834B   [0027]