Shorting jumper

A jumper adapted to electrically connect adjacent ones of an array of uninsulated conductive substantially rigid vertical pins, said jumper being formed of resilient, electrically conductive sheet material and comprising

• a generally vertical plate portion having a free upper lengthwise edge and two generally vertical side edges,
• a pin-retaining spring portion integrally connected lengthwise to said plate portion and comprising
• two cooperating pin-gripping portions each having a length adapted to span at least the greater part of two adjacent pins to be connected, a first said pin-gripping portion being integrally connected lengthwise with said plate portion remote from its said free upper edge, the second said pin-gripping portion being spaced widthwise from said first pin-gripping portion, said pin-gripping portions being generally opposed to one another and convexly curved toward one another, said opposed convexly curved pin-gripping portions defining a closest spacing therebetween,
• a neck portion having a length adapted to pass between two adjacent pins to be connected, said neck portion being integrally connected lengthwise to each said pin-gripping portion, and forming a generally U-shaped curve convexly and downwardly curved away from said pin-gripping apart widthwise by an unstressed said closest spacing less than the thickness of a pin to be connected,
• said U-shaped curved neck portion and said convexly curved pin-gripping portions together defining said pin-retaining spring portion as reentrantly curved and biasing said pin-gripping portions widthwise inwardly toward one another for positive gripping therebetween of two adjacent pins to be connected,
• said jumper further provided position stabilizing means comprising two arms,
• each said arm being integrally connected to a said side edge of said plate portion and bent toward said second pin-gripping portion at an angle of about ninety degrees to said plate portion,
• said arms being lengthwise spaced apart by a spacing adapted to clear the outer surfaces of two adjacent pins to be connected, said arms extending downwardly to at least about the lowest point of said neck portion U-shaped curve,
• said arms extending widthwise from at least about the inner surface of said first pin-gripping portion to at least the junction of said second pin-gripping portion and said neck portion,
• whereby said arms stabilize said jumper to resist tilting thereof and to prevent shorting other adjacent conductive pins.