Illumination – Plural light sources – With modifier
Reexamination Certificate
1998-06-30
2001-05-22
O'Shea, Sandra (Department: 2875)
Illumination
Plural light sources
With modifier
C362S227000, C362S259000, C362S255000, C362S325000, C362S354000
Reexamination Certificate
active
06234649
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an electric lamp device constructed by placing a plurality of small-sized light-emitting elements within an envelope including a globe and a base body, and further to a lighting apparatus using this electric lamp device.
2. Description of the Related Art
There has been known an illuminator, such as a garden light, which is for the purpose of illuminating a square, a park, an entrance of a building, a plantation around a building, or the like at a relatively low position. Although this type of illuminator has some basic configurations, an illuminator with a configuration shown in
FIG. 11
has been employed in relatively many cases.
FIG. 12
is a front-elevational and cutaway cross-sectional view showing a prior garden light. In the illustration, numeral
101
denotes a lamp pipe (column), numeral
102
depicts a pedestal, numeral
103
designates a supporting frame, numeral
104
represents a socket, numeral
105
signifies a compact fluorescent lamp, numeral
106
indicates a louver means, numeral
107
stands for a globe, numeral
108
denotes a packing, and numeral
109
designates a stabilizer. The lamp pipe
101
has an internally hollow, cylindrical configuration, and in use, its proximal portion is planted into the ground. The pedestal
102
has a short cylindrical configuration with a step, and its small-diameter section
102
a
constitutes a connecting section which is inserted into the tip portion of the lamp pipe and attached through a mounting device such as screws to the lamp pipe
101
, while its large-diameter section
102
b
is positioned on the tip portion of the lamp pipe
101
and constitutes a main section where the globe
107
is mounted thereon by means of a thread groove
102
b
1
made in an inner surface thereof.
The supporting frame
103
has a circular box-like configuration made such that its top has a circumferential inclined surface
103
a,
and it is fixedly secured to the interior of the pedestal
102
, with it internally holding the socket
104
. In a manner of being set in the socket
104
, the compact fluorescent lamp
105
is brought into electrical connection with a lighting circuit including the stabilizer
109
concurrently with being mechanically held thereby. The louver means
106
is composed of a plurality of ring-like louver components
106
a
and an assembling mechanism
106
b.
Each of the ring-like louver components
106
a
is made up of an upper portion
106
a
1
and a louver portion
106
a
2
extending downwardly from the outer circumferential edge of the upper portion
106
a
1
to make an inclined configuration. The assembling mechanism
106
b
is composed of a metallic bar
106
b
1
, spacers
106
b
2
and nuts
106
b
3
. That is, the lower end portion of the metallic bar
106
b
1
is fixedly secured through the nut
106
b
3
to the top surface of the supporting frame
103
, and the spacer
106
b
2
is fitted over the metallic bar
106
b
1
, and further another louver component
106
a
is fitted over the metallic bar
106
b
1
, and then, the other louver components
106
a
and spacers
106
b
2
are successively fitted over the metallic bar
106
b
1
in like manner, and finally, the nut
106
b
3
is screwed on the metallic bard
106
b
1
to assemble the louver body
106
on the supporting frame
103
. The globe
107
has a top portion with a semi-spherical configuration, and its outer surface is covered with a light-intercepting coating
107
a.
In addition, it proximal portion is open, and the outer circumference of its open end portion is made to have a thread groove
107
b.
Further, its intermediate portion is made to have a cylindrical transparent light-transmitting portion
107
c.
Furthermore, in the prior garden light described above, the outer diameter of the globe
107
is 150 mm, and the height of the pedestal
102
plus the globe
107
is 210 mm. Furthermore, the compact fluorescent lamp
105
is constructed such that its glass tube section has a width of 37.5 mm and a length of 111.5 mm.
For replacement of the compact fluorescent lamp
105
, the globe is turned to be detached from the pedestal
102
, and a hand is inserted into the louver body
106
to rotate the fluorescent lamp
105
, thereby removing it from the socket
104
. Meanwhile, so far, there has been known an electric lamp device of the type in which a plurality of small-sized electric lamps are hermetically sealed in serial or parallel connection within a glass bulb.
FIG. 13
is a front elevational view showing a prior electric lamp
1
disclosed in Japanese Unexamined Utility Model Publication No. 61-138160. In the illustration, numeral
201
represents a glass bulb, numeral
202
designates a base, numeral
203
depicts lead-in wires, numeral
204
denotes electric lamps, and numeral
205
stands for lead wires. The glass bulb
201
has a structure similar to that of a common lighting electric lamp, and is equipped with a flare stem press
201
a.
The plurality of electric lamps
204
are connected in series to each other, and connected to the base
202
in a manner that the lead wires ending in both ends thereof are connected to the pair of lead-in wires
203
. They are arranged linearly as shown in the illustration or disposed in a ring-like configuration. In addition, the aforesaid publication says that incandescent lamps, discharge lamps or the like are employed as the electric lamps
204
.
Furthermore, the publication mentions that the above-described prior technique can display an excellent display effect.
FIG. 14
is a schematic illustration of a principal portion of a prior electric lamp
2
disclosed in Japanese Unexamined Utility Model Publication No. 2-117657. In the illustration, numeral
301
represents a flare stem press, numeral
302
designates a pedestal, numeral
303
indicates small lamps, numeral
304
signifies lead wires, and numeral
305
stands for splicers.
The flare stem press
301
is employed as a sealing section for a glass bulb of a common lighting electric lamp, and has, at its tip portion, a projection
301
a
for planting an anchor wire, and a pair of lead-in wires
301
b
are hermetically introduced into the glass bulb. The pedestal
302
is fixedly placed with the glass bulb (not shown) in a manner that the projection
301
a
is inserted into a central hole made at its central portion. Further, small holes are made around the central hole of the pedestal
302
. The plurality of small lamps
303
are disposed on the pedestal
302
, and one lead wire of each of the small lamps
303
is guided through the small hole to the area surface side of the pedestal
302
, and is connected through the splicer
305
to one of the lead wires of another small lamp adjacent to the first-mentioned one lead wire on the rear surface side of the pedestal
302
. The other lead wire is connected through the splicer
305
to one of the lead wires of a different small lamp adjacent thereto on the front surface side of the pedestal
302
.
Furthermore, the pedestal fixing the small lamps
303
is inserted into the stem press
301
and fixed there. In this case, it is said that the fixing of the small lamps
303
becomes simple, and by applying a heat resistant paint to each of the surface of each of the small lamps
303
to color it, a lamp with multi-color light is obtainable.
In the case of the prior garden light, for lamp replacement the louver components are required to have a large inner diameter to allow the insertion of a hand, and the lamp itself is large in size. Therefore the garden lamp results in a large-sized and complicated construction, which leads to a high cost and which causes lamp replacement to be troublesome.
Meanwhile, in the case of the prior electric lamps
1
and
2
, since both directly use the common lighting glass bulb, difficulty is experienced to insert a plurality of small-sized electric lamps to given positions within the glass bulb. In addition, there is a problem in making the lamp vibration proof. That is, since the prior e
Frank Robert J.
Kelemen Gabor J.
Moriyama Sangyo Kabushiki Kaisha
O'Shea Sandra
Venable
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