Grounding apparatus for a safety grounded tree

摘要

An artificial lighted tree is presented with power routed through the trunk of the tree and three-wire safety grounding. The tree is divided into sections for easy assembly, disassembly, and storage. The base of the tree is grounded through a three-prong safety grounded electrical cord and each section of the tree makes a ground connection with the base section as it is assembled to the artificial lighted tree. Electrical connections to power the lights may be made outside the trunk of the tree or through electrical connections within the tree.

主权项

1. A lighted artificial tree comprising:
a tree trunk section, having a securing grommet configured to allow conductors of a standard two-prong plug to enter a hollow body of the trunk section, a tree base section configured to receive the tree trunk section, ground means comprising a ground connection adapted to align an exposed conductive surface of the trunk section to a connecting screw passing through the base section when said tree trunk section is received in the tree base section; a three-prong safety-grounded power plug comprising a ground conductor, a hot conductor and a neutral conductor, each electrically connected to said three-prong safety-grounded power plug at a first distal end; a molded electrical box having a cylindrically shaped back configured to sit flush against a cylindrically shaped portion of said tree base section, wherein said ground conductor, said hot conductor and said neutral conductor terminate inside said molded electrical box at a second distal end; an attachment means for securing said electrical box to said tree base section, said attachment means comprising at least one conductive flange for securing the molded electrical box to the tree base section, the at least one conductive flange being electrically connected to said ground conductor to ground the molded electrical box to the tree trunk section; and a female electrical outlet on said molded electrical box, said female electrical outlet configured to receive a male two-prong electrical plug comprising said hot conductor and said neutral conductor, wherein a ground connection of the ground prong can be made independent of the hot and neutral connections through the three-prong safety grounded power plug thereby precluding interference with plugging in and removing the three-prong safety grounded power plug.