Illumination – Plural light sources – With support
Reexamination Certificate
1998-05-29
2001-04-17
Spyrou, Cassandra (Department: 2872)
Illumination
Plural light sources
With support
C362S229000, C362S391000, C313S318010, C439S379000
Reexamination Certificate
active
06217191
ABSTRACT:
FIELD OF THE INVENTION
The invention relates to lamp socket devices in Christmas lighting strings.
BACKGROUND OF THE INVENTION
Conventional lamp socket devices in Christmas lighting strings have a lamp bulb, lamp base, lamp holder and contact copper sheet connected to the electrical wires. In general different specifications of lamp bulb are not used. The lamp bulb is only used in certain conditions or situations. Further, a lighting string used in series or parallel does not have any limit or control. Only words in a label or a written explanation warning is provided on such strings as sold. Thus, users may neglect to heed such explanations. This can present the danger of over heating, something catching fire, etc. due to the improper use. Therefore, a fire disaster may occur, potentially causing great loss in life and property.
The use a bulbs with a screw base in the lamp socket device is based on one type, such as with 1OW, 2OW . . . 20OW bulbs used in households appliances. The same to use E
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base and holder. It should be limited to use in various situations. However, only explanation or warning is done. It has not any effective method or design to protect the users to assembly or replace the device without error whereby to guarantee the safety.
Several decades, a number of lighting strings in series or parallel have different specifications of lamp bulbs (1), which is to use the same specification of lamp base (2) or lamp holder (3). This only relies on the control of manufacture and a written explanation or warning in order to prevent the users from improper use. Especially, the consumers are not familiar and cannot recognize products and distinguish the specifications, i.e. it is difficult to apply common sense to them. Thus, a disaster can result due to neglect. The conventional products use different lamp bulbs (1), use the same specification of lamp base (2) or lamp holder (3), such as in the prior arts of U.S. Pat. Nos. 3,286,008; 4,631,650; 4,679,126; 4,779,177; 4,807,098; 4,970,632; 4,999,751; 5,001,615; 5,193,255 and 5,418,698. Though the combination of lamp bulb, lamp base or lamp holder has a limit in vertical or horizontal direction, the purpose is, under the combination, to make the conductor wire of bulb only able to contact with the electric wire or contact the copper sheet so as to complete the electrical circuit.
SUMMARY AND OBJECTS OF THE INVENTION
The primary object of the present invention is to avoid the possibility of neglect in manufacture and the error in use. The combination between the lamp bulb, lamp base and lamp holder has acceptance, combinable, selective, directional and monopolization characteristics between the fixed lamp bulb, lamp base and lamp holder. The device with another unfixed lamp bulb, lamp base and lamp holder has non-acceptance, non-combinable or exclusive aspects. Such as a device is only able to use a low bulb, it is fixed to being arranged in the first kind of lamp base or lamp holder, and a bulb other than a low one is completely unable to be used in the first kind of lamp base or lamp holder. Further, with the kind of series lighting string using a bulb with 12 Volts in ten bulbs, the Voltage is fixed in 120 V and only this A-type lamp base and lamp holder can be used and it is not possible to use other types of lamp base and lamp holder at all. The other specifications of bulbs in 6 V, 3.5 V, 2.5 V are not combinable with the A-type of lamp base and lamp holder. Further, the bulbs in 6 V, 3.5 V, 2.5 V are only combinable in B-type, C-type, D-types of lamp base and lamp holder respectively.
In order to obtain acceptance, combinable, selective, directional and monopolization characteristics between the fixed lamp bulb, lamp base and lamp holder and the non-acceptance, non-combinable or exclusive aspects as well, many methods can be used and the structures are various. The methods and structures can be used in a number of lamp bulbs, lamp bases and lamp holders. It is unable to list them one by one. However, five groups of lamp bulb, lamp base and lamp holder of push-in type are used as the detailed description thereafter other objects and features will become apparent when the description of preferred embodiments is taken in conjunction with the annexed drawings
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Chen Johnny
Wu Jeng-shyong
Boutsikaris Leo
McGlew and Tuttle , P.C.
Spyrou Cassandra
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