Abstract: A voltage isolating device selectively electrically isolates from each other two points (13 and 15) of an electrically conductive flow medium having different electrical potentials along a flow path. The electrically conductive flow medium is conveyed in the inner space (18′) of a freely protruding carrier (17′) having at least one discharge opening (29). The carrier (17′) moves back and forth between a first isolating position and a second docking position to allow a transfer flow. The discharge opening (29) is closed until the docking position has been reached, wherein the discharge opening is opened, and is closed again when the carrier is moved out of the docking position.

Abstract: A shoe insole having superior cushioning and comfort, good resistance to buckling, and excellent retention of cushioning properties after wear. The insole consists of three layers:(a) a bottom layer having compressive strength of at least 0.3 kg/cm.sup.2 at 40% strain,(b) an intermediate layer having less compressive strength at 40% strain than the bottom layer, and(c) a top layer constructed of fabric. The three layers are laminated together and shaped to fit inside of an article of footwear.