Cam bushing for conduits

Claim 1

A CONNECTOR FOR SECURING A CONDUIT OR THE LIKE ENGAGEABLE THROUGH AN OPENING IN A WALL OF A JUNCTION BOX OR THE LIKE, THE WALL BEING OF A GIVEN THICKNESS AND THE OPENING THEREIN BEING GENERALLY CIRCULAR AND HAVING AT LEAST ONE OFFSET HALF-MOON SECTION, COMPRISING A WRENCH RECEIVING PORTION, A TUBULAR PORTION OF REDUCED DIAMETER DEPENDING FROM SAID WRENCH RECEIVING PORTION DEFINING AN ANNULAR SHOULDER AT THE JUNCTURE WITH SAID WRENCH RECEIVING PORTION, SAID TUBULAR PORTION HAVING AT LEAST ONE CIRCUMFERENTIALLY EXTENDING ARCUATE WEDGE-SHAPED LEAF STRUCK OUT FROM THE TUBULAR PORTION AND PROJECTING FROM THE OUTER PERIPHERAL SURFACE THEREOF AND BEING FLEXIBLE TO PERMIT LIMITED RADIAL DISPLACEMENT THEREOF, SAID LEAF BEING TAPERED TOWARD ITS FREE END HAVING ONE CIRCUMFERENTIAL EDGE DISPOSED ADJACENT SAID ANNULAR SHOULDER AND SEPARATED THEREFROM A DISTANCE LESS THAN THE THICKNESS OF THE WALL OF THE BOX, SAID LEAF HAVING AN AXIAL WIDTH GREATER THAN THE THICKNESS OF THE WALL OF THE BOX, SAID CONNECTOR BEING ADAPTED TO BE POSITIONED OVER SAID CONDUIT THROUGH THE OPENING WITH THE WRENCH RECEIVING PORTION DISPOSED INTERIORLY OF THE BOX WITH SAID ANNULAR SHOULDER ENGAGING THE WALL OF THE BOX ADJACENT THE OPENING AND SAID LEAF CONFRONTING THE MARGINAL EDGE OF THE OPENING IN THE BOX WHEREBY ROTATION OF SAID CONNECTOR WITH RESPECT TO THE OPENING EFFECTS ENGAGEMENT OF SAID LEAF WITH SAID MARGINAL EDGE OF THE OPENING IN THE BOX AND DISPLACEMENT OF THE LEAF RADIALLY INWARDLY TO GRIP THE CONDUIT AND SECURE IT TO THE WALL OF THE BOX.