Lamp assembly

A lamp assembly including a light generating source to be connected directly to a power outlet, said lamp assembly comprising:

• (a) a vitreous envelope including a generallly cylindrical neck at one end thereof, said generally cylindrical neck having,
• a circular outwardly protruded ring extending about the entire periphery of said neck, and an outwardly expanding circumferential skirt which adjoins said circular protruded ring;
• (b) a stem mount integrally connected with said envelope and provided inside thereof with a pair of lead-in wires for supporting said light generating source and for supplying electric power thereto, said wires extending across and outwardly from said stem mount;
• (c) a screw-in base adapted to be assembled to said vitreous envelope for connection to an external lighting fixture for electric power supply, said stem including
• a generally cylindrical shaped screwshell provided with a concave annular channel formed inside said screwshell and extending along the entire internal surface thereof, and
• a flared rim disposed next to said concave channel and expanding outwardly in the direction of said envelope, said rim defining an edge of said screwshell;
• and
• (d) adhesive filling means provided in a space defined by said generally cylindrical neck and said screwshell for fixedly combining said two elements,
• whereby said circular protruded ring and said outwardly expanding skirt are respectively engaged with said concave channel and said flared rim, and further wherein one of said lead-in wires is securely held in a space defined by an external surface of said generally cylindrical neck of said envelope and an internal surface of said screwshell for providing firm electrical contact.