Patent ID: 7893686
Filing Date: 2011-02-22
Classification: G01R

Abstract:
1. An AC voltage indicator for mounting on a power cord including an insulated hot conductor for indicating the presence or absence of voltage on a power cord connected to a grounded AC power distribution system comprising: a flexible base of sheet-form electrically insulating material for wrapping around said power cord, the flexible base having first and second opposite main sides, an attachment means secured to the flexible base for securing the flexible base in a configuration in which it is wrapped around the power cord, the attachment means being releasable whereby the flexible base may be unwrapped from the power cord, a status indicating means comprising a high impedance display device having at least first and second display electrodes connected in parallel with a static suppression resistor, the status indicating means being attached to the flexible base at the first main side, a first conductive element in physical proximity to, and electrically insulated from, said power cord, said first conductive element being attached to the flexible base at the second main side thereof and being electrically connected to said first display electrode of said display device, and a second conductive element that is exposed for touching by a human being and is electrically connected to said second display electrode of said display device, whereby the presence or absence of voltage on the insulated hot conductor of the power cord is indicated by a change in the appearance of said display device when said second conductive element is connected to ground through a human being.