Rotary switch using plastic cover with integral leaf springs as positioning means

Claim 1

AN ELECTRICAL SWITCH COMPRISING A CLOSED HOUSING MEMBER AND A CLOSED COVER MEMBER, SAID MEMBERS HAVING BEARING MEANS THEREIN AND AT LEAST ONE OF SAID MEMBERS BEING OF RESLIENT PLASTIC INSULATING MATERIAL, METALLIC SWITCH ELEMENTS MOUNTED ON AT LEAST ONE OF SAID MEMBERS, SHAFT MEANS SUPPORTED FOR ROTATION BY SAID BEARING MEANS, SWITCH OPERATING MEANS EFFECTIVE UPON ROTATION OF SAID SHAFT MEANS INTO A PLURALITY OF PREDETERMINED ANGULAR POSITIONS TO ACTUATE SAID SWITCH ELEMENTS AND POSITIONING MEANS EFFECTIVE TO POSITION SAID SHAFT MEANS IN ANY SELECTED ONE OF SAID PREDETERMINED ANGULAR POSITIONS SAID POSITIONING MEANS COMPRISING A PLURALITY OF LOCATING MEANS ON SAID SHAFT CORRESPONDING TO SAID ANGULAR POSITIONS AND RELILIENT PLASTIC SPRING MEANS INTEGRALLY MOLDED WITH ONE OF SAID MEMBERS, SAID SPRING MEANS LYING GENERALLY IN A PLANE AXIALLY SPACED ALONG SAID SHAFT FROM SAID ONE MEMBER AND ITS BEARING SURFACE AND SUPPORTED SOLELY AT ITS END FROM SAID ONE MEMBER BY A TORSION SPRING ELEMENT INTEGRALLY MOLDED OF PLASTIC INSULATING MATERIAL WITH SAID COVER MEMBER TO SPACE SAID SPRING MEANS FROM SAID ONE MEMBER, THE UNSUPPORTED CENTRAL PORTION OF SAID SPRING MEANS HAVING MEANS ENGAGING SAID SHAFT IN SAID PREDETERMINED POSITIONS.