Abstract:
The present invention provides an illuminating apparatus for ornamental elements such as in an illuminated necklace, an illuminated belt or the like, which includes a plurality of lamps to illuminate more than one lamp housing which simulates a pendant or the like. A battery assembly is provided in one of the lamp housings to power the circuit of the illuminating apparatus.

Description:
BACKGROUND OF THE INVENTION 
     This invention relates to an illuminated ornament such as a necklace, a belt or the like, particularly to an illumination apparatus for the purpose of illuminating an ornamental element such as a pendant of a necklace, a belt buckle or the like. 
     The technology to provide illuminating light bulbs in ornamental elements such as earrings, necklaces, belt buckles or the like to increase the brightness of the elements is known in the art. Examples of these ornamental elements are disclosed in U.S. Pat. Nos. 4,262,324, 3,624,384 and 4,605,882. 
     U.S. Pat. No. 4,262,324 discloses an ornamental article of neckwear which includes a pendant incorporating a lamp, an elongated casing carrying a dry cell, and an elongated flexible looped conductor electrically interconnecting the elongated casing and the lamp of the pendant to form a ring member. In this article, the casing holding the dry cell is separated from the housing holding the lamp. 
     SUMMARY OF THE INVENTION 
     The present invention provides an illuminating apparatus for ornamental elements such as a necklace, a belt or the like which includes a plurality of lamps to illuminate more than one lamp housing which simulates a pendant or the like. A battery assembly is provided in one of the lamp housings to power the circuit of the illuminating apparatus. 
     Unlike the neckware disclosed in U.S. Pat. No. 4,262,324, the illuminating apparatus according to the present invention is arranged in such a manner that the dry cells can be placed in a housing which encases a lamp. 
     The exemplary preferred embodiment will be described in detail with reference to the accompanying drawings, in which: 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 shows an illumination apparatus according to the present invention; 
     FIG. 2 is an exploded view of one of the lamp housings incorporating the batteries and a lamp; 
     FIG. 3 is an exploded view of another lamp housing of the illumination apparatus; 
     FIG. 4 shows schematically a printed circuit board in connection with the lamps and the batteries; 
     FIG. 5 shows the lamp housing of FIG. 2 which is provided with a variable resistor and a rotatable knob; and 
     FIG. 6 shows the apparatus of FIG. 1 in greater detail. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT 
     Referring to FIGS. 1 and 2, an illumination apparatus for use in illuminating an ornamental article such as a necklace, a belt or the like according to the present invention is shown, including three housings 10, 20 and 30 which are interconnected by an elongated flexible member 40 such as a nonconductive cord 40 which is provided with a decorative coating. Fasteners 41 and 42 are attached to the cord 40 for fastening the ends of the cord together. Although the housings 10, 20, and 30 are in the shape of a light buib, they can be manufactured in the form of any other decorative shapes such as different shapes of necklace pendants. The housing 10 has a threaded tubular neck portion 15 in which is mounted a printed circuit board 11. A lamp 10a is mounted on and electrically connected to the printed circuit board 11. The neck portion 15 defines a chamber above the board 11 for receiving three batteries 50. The positive terminal of the battery assembly will contact electrically with terminal V DD  of the printed circuit board when the batteries 50 are placed in the chamber of the neck portion 15. 
     A conductive spring plate 18 is mounted on the wall of the threaded neck portion 15 and connected to the printed circuit board 11. A conductive cap 13 with a screw thread 16 is provided around the neck portion 15 and is in contact with the conductive spring plate 18. The cap 13 has a back member 14 adapted to contact the negative terminal of the assembly of the batteries 50 to the terminal V SS  of the printed circuit board when the cap is turned. The cap 13 can be used for the switching operation of the circuit of the illumination apparatus. 
     As shown in FIG. 3, the housing 20 has a neck portion defining a chamber 21. The construction of the housing 20 is substantially similar to that of the housing 10 except that no spring plate 18 is provided therein. The chamber 21 of the housing 20 can be used for holding replacement batteries. The housing 30 is identical to the housing 20. Referring to FIGS. 1 and 6, conductors in the form of metal filaments (not shown) are provided in the cord 40 for electrically interconnecting the lamps 10a, 20a and 30a of the housings 10, 20, and 30. The metal filaments, which are connected to the printed circuit board 11 in housing 10 and to the three lamps 10a, 20a and 30a in housings 10, 20, and 30, extend in portions 19a and 19b of the cord 40 As will be seen below, the printed circuit board in housing 10 includes an oscillator, whereas the printed circuit boards 11&#39; in housings 20 and 30 are provided for convenient electrical connection to lamps 20a, 30a. 
     FIG. 4 illustrates schematically the electrical connection between the printed circuit 11 of the housing 10 and the other elements of the illumination apparatus. The lamp 10a, 20a and 30a are in parallel connection with one another and also connected to the batteries 50 in housing 10. The circuit board of the illumination apparatus includes an oscillator (not shown) connected via terminals a, b to a resistor R, so as to control the flickering of the interconnected lamps 10a, 20a and 30a. The circuit can be placed in an ON position by turning the cap 13 to move the back member 14 to contract with the negative terminal of the battery assembly. Since the circuit of the illumination apparatus is known in the art, the detail thereof will not be described herein. 
     Referring to FIG. 5, an alternative embodiment of the invention is shown, wherein the neck portion 15 of the lamp housing 10 is provided with a variable resistor Ra instead of the resistor R1. A rotatable knob 70 is mounted on the back of cap 13 to operate the resistor Ra. 
     FIG. 6 is similar to FIG. 1, but shows the printed circuit boards 11&#39; in housings 20, 30. The printed circuit boards 11&#39; provide a convenient mounting and electrical connection for lamps 20a, 30a. 
     With the invention thus explained, it is apparatus that numerous modifications and variations can be made without departing from the scope of the invention. It is therefore intended that the invention be limited as only indicated in the appended claims.