公开(公告)号：EP0089821A2

公开(公告)日：1983-09-28

申请号：EP83301504.3

申请日：1983-03-17

申请人： THE POST OFFICE

发明人： Bright, David Edward ,  Jones, Steven Kenneth

IPC分类号： B07C1/02 ,  G06K13/067

CPC分类号： B07C1/02 ,  G06K13/067

摘要： A detector device for detecting the passage of articles of a conveyor comprises an energy source element 8, an energy responsive element 10 and reflector means 27, 9 and 28, positioned so that a beam of energy from the source element 8 to the responsive element 10 first traverses the conveyor path substantially parallel and close to the conveyor surface and is then reflected back and fourth across the conveyor path in a plane substantially perpendicular to the conveyor surface.

公开(公告)号：EP0089821A3

公开(公告)日：1984-05-16

申请号：EP83301504

申请日：1983-03-17

申请人： THE POST OFFICE

发明人： Bright, David Edward ,  Jones, Steven Kenneth

IPC分类号： B07C01/02 ,  G06K13/067

CPC分类号： B07C1/02 ,  G06K13/067

摘要： A detector device for detecting the passage of articles of a conveyor comprises an energy source element 8, an energy responsive element 10 and reflector means 27, 9 and 28, positioned so that a beam of energy from the source element 8 to the responsive element 10 first traverses the conveyor path substantially parallel and close to the conveyor surface and is then reflected back and fourth across the conveyor path in a plane substantially perpendicular to the conveyor surface.

公开(公告)号：EP0089821B1

公开(公告)日：1987-11-11

申请号：EP83301504.3

申请日：1983-03-17

申请人： THE POST OFFICE

发明人： Bright, David Edward ,  Jones, Steven Kenneth

IPC分类号： B07C1/02 ,  G06K13/067

CPC分类号： B07C1/02 ,  G06K13/067