Patent ID: 7551097

Claim:
An indicator device ( 10 ) installed in a material feeding machine ( 50 ) having a push rod ( 52 ) for pushing a bar material ( 53 ), for indicating the feeding status of the material feeding machine ( 50 ), wherein the indicator device ( 10 ) comprises: a body ( 20 ) detachably mounted to said material feeding machine ( 50 ); at least one circuit board ( 30 ) mounted in said body ( 20 ), wherein said at least one circuit board ( 30 ) has at least one light emitting element ( 32 ); and a controller ( 40 ) electrically connected to said at least one circuit board ( 30 ) for controlling on/off status of said at least one light emitting element ( 32 ) of said at least one circuit board ( 30 ) individually so as to provide a visual indication signal representing the feeding status of said material feeding machine ( 50 ), wherein said body ( 20 ) extends in a direction substantially parallel to the length of the push rod ( 52 ) of the material feeding machine ( 50 ), and said body ( 20 ) further comprises a light-transmissive member ( 24 ) corresponding in location to said at least one light emitting element ( 32 ) of said at least one circuit board ( 30 ).