Structure of a string of surface-contacted flasher type lamps

Details Structure of a string of surface-contacted flasher type lamps Structure of a string of surface-contacted flasher type lamps

2003-01-21

2004-02-03

Wong, Don (Department: 2821)

Electric lamp and discharge devices: systems

Plural series connected load devices

Christmas lights

C315S18500S

Reexamination Certificate

active

06686700

ABSTRACT:

BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to decorative flasher type lamps and, more particularly, to an improved structure of a string of surface-contacted flasher type lamps that have high acuteness and high stability.
2. Description of the Related Art
Referring to
FIG. 1
, a conventional decorative flasher type lamp
1
contains a single-piece compound metal heat leaning slice
11
. When the tungsten filament
14
inside the flasher type lamp
1
is emitting heat and its temperature is getting higher, the compound metal heat leaning slice
11
will bend due to receiving heat and touch the filament
15
. The contact between the slice
11
and the filament
15
leads to a short circuit, which causes the tungsten filament
14
inside the bulb to be extinguished and the temperature inside the bulb to drop. Consequently, the compound metal heat leaning slice
11
will also cools down and eventually will be separated from the filament
15
. In turn, the separation will lighten up the tungsten filament
14
again; therefore, the compound metal heat leaning slice
11
will come into contact with and depart from the filament
15
repeatedly, causing a flashing effect inside the bulb. However, point discharge will occur when the compound metal heat leaning slice
11
touches the filament
15
, which will cause the compound metal heat leaning slice
11
to be fatigued. In addition, because the filament above the core ball
13
is a straight line, the fuse
12
that coils around the filament will slip off easily; therefore, the effect of protecting the circuits cannot be achieved properly. In viewing of the above-mentioned shortcomings, the invention provides a surface-contacted flasher type lamp to improve the shortcomings.
SUMMARY OF THE INVENTION
The main object of the invention is to provide a surface-contacted flasher type lamp that contains two-piece compound metal heat leaning slices so as to make the lamp short circuited by a surface contact, and to produce a surface-contacted flasher type lamp with high acuteness and stability in order to prevent from the shortcomings of the conventional flasher type lamp, which means that the metal fatigue can be avoided since it may occur in the conventional flasher type lamp due to point discharge caused by the point contact.
Another object of the invention is to provide a conducting line with a concave portion, which allows the fuses to steadily coil around the conducting line.
Also, another object of the invention is to provide a core ball with diamond-shape surfaces, which refracts the emitted light and increase the visual sense of beauty.


REFERENCES:
patent: 6107746 (2000-08-01), Chen
patent: 6396219 (2002-05-01), Tang

Affiliated with

Also associated with

Rating

Structure of a string of surface-contacted flasher type lamps does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Structure of a string of surface-contacted flasher type lamps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure of a string of surface-contacted flasher type lamps will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3318086