Electricity: circuit makers and breakers – Combined with or actuated by connector coupling – Multiple coupling
Reexamination Certificate
2000-03-27
2002-05-21
Bradley, P. Austin (Department: 2832)
Electricity: circuit makers and breakers
Combined with or actuated by connector coupling
Multiple coupling
C200S051050
Reexamination Certificate
active
06392171
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
This invention relates to an integral multi-switch, and more particularly to a switch box requires little or no soldering method.
2. Description of Prior Art
The multi switches currently on the market are mostly used as an extension cord or a single switch to a multi switch box, as shown in
FIGS. 14 and 15
. A receptacle A comprises a number of receptacle moldings A
1
. Each molding A
1
is controlled by a single switch A
2
which has a various types, such as a light indicator within the switch or an overload protector which shots off the power when overload is detected,) to be conducted or disconnected from electric power. The first connecting point A
12
of each switch A
2
is connected in series to each other by means of a copper wire A
6
and to one end A
31
of an overload protector A
3
the other end A
32
of the overload protector A
3
is connected to the incoming electric power source, the connecting points A
22
of the switch A
2
are connected by separate copper wire A
5
and connected to the connecting point A
11
, the groundings A
23
from the second switch A
2
and thereafter, are connected to the groundings A
12
of each receptacle molding A
1
, and the grounding of the first switch A
1
is connected to the groundings A
12
of the receptacle molding A
1
by another copper wire A
4
which is also connected to the grounding of an incoming power circuit., this design has some shortcomings one is that the soldering has to be perfect, if any parts loosen, the switch box will be short circuit.
SUMMARY OF THE INVENTION
It is the primary object of the present invention to provide an integral multi-switch which is more reliable.
It is another object of the present invention to provide a multi-switch receptacle which uses no soldering, and saves manufacturing cost.
It is a further object of the present invention to provide an integral multi-switch which is easy to operate.
REFERENCES:
patent: 3742171 (1973-06-01), Howe
patent: 4352964 (1982-10-01), English
patent: 4875871 (1989-10-01), Booty, Sr. et al.
patent: 4929807 (1990-05-01), Sorenson
patent: 5347095 (1994-09-01), Zeder
patent: 5451729 (1995-09-01), Onderka et al.
patent: 6054657 (2000-04-01), Liao
Bradley P. Austin
Nguyen Nhung
Rosenberg , Klein & Lee
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