公开(公告)号：US3452308A

公开(公告)日：1969-06-24

申请号：US3452308D

申请日：1967-12-13

申请人： FRANK W MURPHY JR ,  WAYNE MCMILLIAN

发明人： MURPHY FRANK W JR ,  MCMILLIAN WAYNE

IPC分类号： F02P11/02 ,  H01H50/62 ,  H01H51/00 ,  F02P11/00

CPC分类号： H01H50/62 ,  F02P11/02

公开(公告)号：US3641290A

公开(公告)日：1972-02-08

申请号：US3641290D

申请日：1970-08-10

申请人： FRANK W MURPHY ,  FRANK W MURPHY JR

发明人： MURPHY FRANK W ,  MURPHY FRANK W JR

IPC分类号： H01H5/02 ,  H01H35/14

CPC分类号： H01H5/02 ,  H01H35/144

摘要： A switch for opening and closing electric circuits, the switch comprising a pivotally mounted switch arm normally disposed in switch closed position, magnet coupling means for holding said switch arm in its closed position, means exerting a biasing force on said switch arm constantly tending to urge said switch arm for movement to an open position, the coupling force exceeding the biasing force, said switch arm forming a first moment of inertia arm, and a weighted lever assembly forming a second moment of inertia arm, said weighted lever assembly being connected with the switch arm, and the switch arm being assembled in such a manner that when an inertial force from any direction added to the biasing force exceeds the coupling force, the switch arm will be caused to move from its normally closed position to its open position.

摘要翻译： 一种用于打开和关闭电路的开关，所述开关包括通常设置在开关闭合位置的枢转安装的开关臂，用于将所述开关臂保持在其关闭位置的磁体联接装置，在所述开关臂上施加偏置力， 所述开关臂用于移动到打开位置，所述联接力超过所述偏置力，所述开关臂形成第一惯性臂，以及形成第二惯性臂的加权杆组件，所述加权杆组件与 开关臂和开关臂组装成使得当从施加偏压力的任何方向的惯性力超过耦合力时，将使开关臂从其常闭位置移动到其打开位置。

公开(公告)号：US3586799A

公开(公告)日：1971-06-22

申请号：US3586799D

申请日：1969-04-07

申请人： FRANK W MURPHY JR

发明人： MURPHY FRANK W JR

IPC分类号： G05D23/00 ,  G01D13/26

CPC分类号： G05D23/00 ,  Y10S200/02

摘要： A gauge having a plurality of adjustable contacts positioned about the face with a flexible contact mounted on the hand so that a plurality of electric circuits can be established and disestablished during the rotation of the hand about the face of the gauge.

公开(公告)号：US3578931A

公开(公告)日：1971-05-18

申请号：US3578931D

申请日：1970-01-15

申请人： FRANK W MURPHY ,  FRANK W MURPHY JR

发明人： MURPHY FRANK W ,  MURPHY FRANK W JR

IPC分类号： H01H1/18 ,  H01H35/36

CPC分类号： H01H1/18 ,  H01H35/36

摘要： An electrical switch including a movable switch arm, a switch contact engageable and movable with said switch arm to close an electric circuit, and wherein the contact is spring-biased to constantly engage within a seat and to wipe therein upon engagement and disengagement of said switch arm, and to return the contact to its original position.