Patent ID: 8808023
Filing Date: 2014-08-19
Classification: F04D,H01R

Abstract:
1. An electrical appliance for a lampholder socket having a first lampholder-socket electrically conductive contact, a second lampholder-socket electrically conductive contact insulated from the first lampholder-socket electrically conductive contact and a socket axis of rotation, the appliance comprising: a housing rotatable by an application of an applied torque thereto; a screw base configured to be inserted in the lampholder socket and threadedly connected to the lampholder socket upon a rotation of the screw base in a first direction about the socket axis of rotation, the screw base having a first screw-base electrically conductive contact and a second screw-base electrically conductive contact insulated from the first screw-base electrically conductive contact, wherein the first screw-base electrical contact is in electrical communication with the first lampholder-socket electrically conductive contact and the second screw-base electrically conductive contact is in electrical communication with the second lampholder-socket electrically conductive contact when the screw base is threadedly connected to the lampholder socked; a torque limiter fixedly attached to the screw base for rotation therewith, the torque limiter coupling the housing to the screw base for rotation therewith when the applied torque is less than a predetermined magnitude and coupling the housing to the screw base for rotation relative thereto when the applied torque is greater than the predetermined magnitude; and an electrical device mounted in the housing, the electrical device electrically connected to the screw base.