公开(公告)号：US3517357A

公开(公告)日：1970-06-23

申请号：US3517357D

申请日：1968-04-04

申请人： HEINEMANN ELECTRIC CO

发明人： BAKES HAL H

IPC分类号： H01F7/16 ,  H01H71/30 ,  H01H71/34 ,  H01H73/36 ,  H01H7/14

CPC分类号： H01H71/345 ,  H01H71/30

公开(公告)号：US3566320A

公开(公告)日：1971-02-23

申请号：US3566320D

申请日：1969-06-05

申请人： HEINEMANN ELECTRIC CO

发明人： BAKES HAL H

IPC分类号： H01H71/34 ,  H01H83/20 ,  H01H7/00

CPC分类号： H01H71/345 ,  H01H83/20

摘要： AN ELECTROMAGNETIC DEVICE COMPRISING FIRST AND SECOND SOLENOID COILS, AN ARMATURE ACUTATABLE BY EITHER COIL AND A MAGNETIZABLE FRAME CARRYING THE COILS. A TIME DELAY DEVICE COMPRISING A TUBE OF NON-MAGNETIC MATERIAL WITHIN WHICH IS A MOVABLE MAGNETIZABLE CORE AND WITH WHICH THE FIRST COIL COOPERATES TO ACTUATE THE ARMATURE AFTER A TIME DELAY PERIOD UPON PREDETERMINED ENERGIZATION OF THE FIRST COIL. THE TUBE HAS A POLE PIECE AT ONE END TOWARD WHICH THE ARAMATURE IS ATTRACTED ON PREDETERMINED

OVERLOAD CONDITIONS, THE CORE BEING BIASED TOWARD THE END OF THE TUBE AWAY FROM THE POLE PIECE. BOTH COILS SURROUND THE TUBE AND THE FIRST COIL PROVIDES OVERLOAD TRIPPING OF THE DEVICE, WHILE THE SECOND COIL TRIPS THE DEVICE IN RESPONSE TO AN ELECTRICAL SIGNAL INDEPENDENTLY OF WHETHER THE FIRST COIL IS ENERGIZED OR NOT.

公开(公告)号：US3272934A

公开(公告)日：1966-09-13

申请号：US33410863

申请日：1963-12-30

申请人： HEINEMANN ELECTRIC CO

发明人： SCHWARTZ NORMAN J ,  TAYLOR NORMAN E ,  BAKES HAL H

IPC分类号： H01H71/10

CPC分类号： H01H71/1045