Means for securing fixtures to busway

Claim 1

A DEVICE FOR REMOVABLY MOUNTING AN ELECTRICAL UNIT TO A BUSWAY HAVING AN ELONGATTED NARROW BOTTOM OPENING EXTENDING ALONG SUBSTANTIALLY ITS ENTIRE LENGTH, WHICH COMPRISES: (A) A HOLLOW BASE FOR POSITIONING ADJACENT SAID HOUSING; (B) A PLUG UNIT CARRIED BY SAID BASE AND INCLUDING (1) AN INSULATED EXTENSION HAVING A FIRST DIMENSION GREATER THAN THE WIDTH OF THE BOTTOM OPENING OF THE HOUSING AND A SECOND DIMENSION AT RIGHT ANGLES TO SAID FIRST DIMENSION, AND (2) A COMPRESSION SPRING FIXEDLY SECURED AT ONE TENDING OUTWARDLY FROM SAID INSULATED EXTENSION; (C) BRACKET MEANS FIXED TO SAID BASE FOR MECHANICALLY SECURING SAID DEVICE TO SAID BUSWAY INCLUDING AT LEAST ONE PAIR OF OPPOSITELY PROJECTING ARMS FOR ENGAGING THE OUTER PERIPHERY OF SAID HOUSING; AND (D) A LOCKING MEANS FOR MAINTAINING SAID DEVICE SECURED TO SAID BUSWAY, INCLUDING (1) A MEMBER SLIDABLY MOUNTED ON SAID BASE FOR MOVEMENT BETWEEN A FIRST LOCKING POSITION AND A SECOND RELEASE POSITION, AND INCLUDING A CAM ELEMENT FOR ENTERING AND ENGAGING SAID HOUSING, EHEN SAID MEMBER IS MOUNTED IN ITS FIRST, LOCKING POSITION, (2) A COMPRESSION SPRING FIXEDLY SECURED AT ONE END TO SAID BASE BIASING SAID MEMBER INTO SAID FIRST LOCKING POSITION THEREOF; AND (3) STOP MEANS EXTENDING THROUGH SAID BASE AND FIXED TO SAID MEMBER, SAID STOP MEANS BEING MOVABLE BY SAID MEMBER TO A FIRST POSITION, CORRESPONDING TO THE FIRST, LOCKING POSITION OF THE MEMBER, AND BEING MANUALLY MOVABLE TO A SECOND POSITION CORRESPONDING TO THE SECOND, RELEASE POSITION OF SAID MEMBER.

Claim 2

A DEVICE FOR REMOVABLY MOUNTING AN ELECTRICAL UNIT TO A BUSWAY HAVING AN ELONGATTED NARROW BOTTOM OPENING EXTENDING ALONG SUBSTANTIALLY ITS ENTIRE LENGTH, WHICH COMPRISES: (A) A HOLLOW BASE FOR POSITIONING ADJACENT SAID HOUSING; (B) A PLUG UNIT CARRIED BY SAID BASE AND INCLUDING (1) AN INSULATED EXTENSION HAVING A FIRST DIMENSION GREATER THAN THE WIDTH OF THE BOTTOM OPENING OF THE HOUSING AND A SECOND DIMENSION AT RIGHT ANGLES TO SAID FIRST DIMENSION, AND (2) A COMPRESSION SPRING FIXEDLY SECURED AT ONE TENDING OUTWARDLY FROM SAID INSULATED EXTENSION; (C) BRACKET MEANS FIXED TO SAID BASE FOR MECHANICALLY SECURING SAID DEVICE TO SAID BUSWAY INCLUDING AT LEAST ONE PAIR OF OPPOSITELY PROJECTING ARMS FOR ENGAGING THE OUTER PERIPHERY OF SAID HOUSING; AND (D) A LOCKING MEANS FOR MAINTAINING SAID DEVICE SECURED TO SAID BUSWAY, INCLUDING (1) A MEMBER SLIDABLY MOUNTED ON SAID BASE FOR MOVEMENT BETWEEN A FIRST LOCKING POSITION AND A SECOND RELEASE POSITION, AND INCLUDING A CAM ELEMENT FOR ENTERING AND ENGAGING SAID HOUSING, EHEN SAID MEMBER IS MOUNTED IN ITS FIRST, LOCKING POSITION, (2) A COMPRESSION SPRING FIXEDLY SECURED AT ONE END TO SAID BASE BIASING SAID MEMBER INTO SAID FIRST LOCKING POSITION THEREOF; AND (3) STOP MEANS EXTENDING THROUGH SAID BASE AND FIXED TO SAID MEMBER, SAID STOP MEANS BEING MOVABLE BY SAID MEMBER TO A FIRST POSITION, CORRESPONDING TO THE FIRST, LOCKING POSITION OF THE MEMBER, AND BEING MANUALLY MOVABLE TO A SECOND POSITION CORRESPONDING TO THE SECOND, RELEASE POSITION OF SAID MEMBER.