Abstract: A safety lamp socket including a socket body to hold a lamp bulb, a socket cap fastened to the socket body to hold down en electrical wire, and two metal contact plates mounted in a respective hole on the socket body to make electrical contact with a respective conductor in the electrical wire, wherein two metal spring plates are respectively mounted in a respective hole on the socket body and suspended below the metal contact plates, which metal spring plates are respectively forced by the tip contact and ring contact of the lamp bulb into contact with the metal contact plates when the lamp bulb is installed; the socket cap has two threaded downward plugs retained to two projecting blocks inside the socket boy for engaging the ring contact of the lamp bulb upon the installation of the lamp bulb, and a curved clamping plate for fastening to a support, the curved clamping plate having a keyhole-like slot for hanging on a wall nail, threaded portions and clamping portions for fastening the lamp socket to tree t

Abstract: A safety lamp socket including a socket body for holding a lamp bulb, a socket cap fastened to the socket body to hold down an electric wire, a center contact metal plate and a side contact metal plate fastened to said socket body and disposed in contact with the positive and negative conductors of the electric wire, a center metal spring plate and a side metal spring plate spaced inside the socket body, wherein when the lamp bulb is threaded into the socket body, the ring contact of the lamp bulb becomes fastened to the screw threads of the two mounting rods of the socket cap, the center and side metal spring plates are respectively forced by the tip and ring contacts of the lamp bulb to contact the center and side contact metal plates, causing the lamp bulb electrically connected to the electric wire.

Abstract: A safety lampholder has center and side contacts which are concealed and cannot easily be touched by fingers when the lamp screw base is not threaded into the screwthreads. Ring and tip contacts of the lamp screw base are disposed in contact with the center and side contacts of the lampholder when the lamp screw base is threaded into position. The inside wall of the lampholder has separated steps, which have a uniform chambered angle R meeting UL specifications and which define the screwthread for mounting the lamp screw base.

Abstract: A lamp socket, which includes a socket body to hold the bulb, a socket cap fastened to the socket body to hold down the electric wire and having two hooked bottom retaining rods inserted through holes on a socket body and hooked on the ring contact of the bulb when the bulb is plugged into the socket body, a gasket and two spaced water sealing rubbers to seal the socket body against water, a center contact metal plate and a side contact metal plate mounted within the socket body for connection with the tip and ring contacts of the bulb, a deformable intermediate contact metal spring to connect the ring contact of the lamp bulb to the side contact metal plate. The center contact metal plate can be turned through about 90.degree. angle per step and moved from one conductor of the electric wire to another thereof to make a different contact.

Abstract: An acoustic control circuit for sequencing the flashing of a Christmas light set according to the rhythm and volume of a sound, and more particularly a flash control circuit which makes use of externally produced acoustic intensity to effect the sequence of flashing in accordance with a predetermined sequence. A user can enjoy special flashing effect produced by the light set when such a light set is connected placed near and responsive to a sound generating unit like a stereo or other device.

Abstract: A packing rubber for sealing the gap between window glass and door frame upper time of a vehicle of the type comprising a diamond-shaped channel bar having an unitary retainer rib longitudinally disposed at the top for insertion into window glass channel of a door frame of a vehicle and a window glass channel longitudinally disposed at the bottom for holding window glass of a vehicle, which retainer rib defines therein a longitudinal channel hole and comprises a plurality of angle strips disposed longitudinally at the two opposite sides thereof. The packing rubber is squeezed to deform according to the gap between the window glass and the door frame upper trip of the vehicle onto which it is mounted, so that it is firmly retained in place.

Abstract: A modified X'mas lamp bulb and the related lamp base, and more particularly a big lamp bulb of low voltage to match a water-tight lamp base structure by means of set-in connection so as to let the whole lamp assembly be matchable with any lamp holder (socket) of small X'mas light sets through series connection. The component parts can be manufactured through mass production to reduce manufacturing cost. In addition to the water-proof feature, a clamping and a fastening member are provided to let the whole assembly be convenient for hanging on or fixing to any position desired.

Abstract: This invention relates to a Christmas light assembly and more particularly to the one which includes a lamp base comprising divided strips to flexibly match with the outer diameter of bulb so as to let bulb be firmly retained therein. The divided strips are having projecting inner wall portions with a longitudinal scoop channel set between each two projecting inner wall portions for draining of water. The lamp base also comprises two resilient hook members to respectively engage with the upper flange of a lamp holder when it is inserted therein, so as to reinforce the connection.

Abstract: A vehicular internal fan ventilator, which includes a housing having set therein an internal ventilating chamber with a cross-flow air fan, a motor, a storage batteries and selector and a switch and a linkage to an oblique, external portion of housing which is fixedly mounted a solar cell board to collect solar energy for the motor and/or to charge the storage batteries. The housing comprises a top retainer rib and a bottom window glass channel for convenient installation in with a separate, flexible and cuttable packing strip in a car between door frame upper trim and window glass of a vehicle.