Description  Claims  Drawing  Cited references 

US62277045B   [0001] 
DE102013101689A1   [0004] 
US4558898A   [0005] 
US5678884A   [0005] 
US7213870B   [0005] 
US4773692A   [0006] 
US4854635A   [0007] 
US8113571B   [0008] 
US8944489B   [0009] 
US5141281A   [0011]