Patent ID: 6062711
Filing Date: 2000-05-16
Classification: F21S,F21V

Abstract:
A coupling device for Christmas light comprising:an electrical socket including a first opening in top, a pair of rectangular recesses symmetrically formed in opposing inner peripheries for respectively securing in a pair of rectangular contact plates from a free end of each of a pair of electrical wires and a pair of lug members of arcuate elastic plate symmetrically and alternately extending outward from opposing outer peripheries thereof and each having a cylindrical receiving space for respectively receiving said pair of electrical wires, a slit entrance communicating with the receiving space and a pair of reinforcement plates symmetrically and alternately extending outward from opposing outer peripheries thereof in front of said slit entrances;a base including a second opening and a rim on top, a bottom, a bulb axially disposed into the second opening having a pair of lead-in wires extending out of the bottom and respectively attached to opposing lateral sides of the bottom and a pair of L-shaped extensions symmetrically and alternately extending outward from the rim thereof each having a longer portion extending downward and engageable with the slit entrances of said lug members and a urged by the pair of reinforcement plates on back side thereof;when said base axially secures into the first opening of said electrical socket, said lead-in wires will contact with said rectangular contacts plate and the longer portions of said L-shaped extensions will block up the slit entrances of said lug members.