[0001] The present invention relates to the manufacturing of memorial articles for gravestones.
[0002] More particularly the present invention concerns an endless votive lamp, or torch
that is to be placed on a grave, usually in a position near to the dead person's photo,
for commemorative purpose.
[0003] As it is known, some time ago candles were put near the gravestone, with a wick left
alight.
[0004] Afterwards it was found more convenient to adopt artificial forms of a votive flame,
e.g. obtained by means of a lamp, or torch, comprising a housing, generally with a
parallelepiped shape, and a glass cover shaped in form of a burning flame. Inside
the glass cover there is a bulb that is connected to a power supply system.
[0005] The bulb is continuously kept on. The problems brought about by this commemorative
set are self evident. First, the intensity of the light emitted by the bulb does not
change and therefore the desired aesthetical effect is not completely achieved, because
of the lacking of flashes in the light emitted.
[0006] Second, the need of power supply requires to set a properly suited electric system,
which involves constructive costs and problems. Also it should be considered the cost
for the power continuously supplied later.
[0007] The object of the present invention is to propose a device that is able to emulate
the burning flame of a torch bringing about the result intended.
[0008] Another also important object of the invention is to propose a device that is able
to work continuously, i.e. without any interruption, and that does not require any
connection to the power supply system, nor any recurring maintenance.
[0009] The above-mentioned objects are achieved by means of the present invention made in
accordance with the content of the claims.
[0010] The characteristic features of the invention will be pointed out in the following
description, with reference to the accompanying drawings, in which:
- Figs.1 and 2 show perspective views of two preferred embodiments of the invention
subject of the following description;
- Fig.3 shows a diagram of the electric circuit and other elements connected therewith,
which form the bases of the subject device.
[0011] Referring to the above-mentioned figures, reference numeral 1 generally indicates
the endless votive lamp subject of the present invention.
[0012] The lamp, or torch, substantially comprises a box-like member 2, a light receiving-converting
member 3, accumulator elements 4, an electric circuit 5, light emmitting elements
6a,b,c,d and a glass cover 7.
[0013] The box-like member 2 contains and supports some of the other elements or members
listed above, and has a hole at the top, this hole being generally circular.
[0014] The member 3, that is designed to receive the light and to convert it into electricity,
substantially includes a flat photovoltaic cell 3a, enclosed in a frame 3b.
[0015] A few pins, made integral with the frame 3b of the photovoltaic cell 3a, projects
backwards therefrom, and are positioned, for example, at two of the frame corners
opposite to each other.
[0016] The pins serve to fix the frame to a marble slab, that is the gravestone used to
close the burial niche, or set over a ground grave. In the gravestone there are made
holes properly positioned for receiving the pins which are fixed therein by means
of a suitable adhesive.
[0017] In this way the box-like member 2, fastened to the frame 3b, is also supported by,
and fixed to, the marble slab, along with the device herein described.
[0018] One or more accumulator elements 4, e.g. a NiCd battery, are housed inside the box-like
member for storing the electricity generated by the receiving-converting member 3,
and are connected to the electric circuit 5 that is also housed inside the box-like
member 2.
[0019] The circuit 5 is designed to generate a series of modulated electric pulses when
it is fed by the accumulator elements 4. The electric pulses are delivered to a series
of output connectors.
[0020] The light emitting elements 6a,b,c,d are supported by the same electric circuit in
such a position that they are located near to the top hole of the box-like member
2, and are connected to the output connectors.
[0021] The glass cover 7, that reproduces a burning flame, is blocked to the rim of the
box-like member top hole, e.g. screwed thereinto, so as to cover the circuit and the
light emitting elements 6a,b,c,d.
[0022] In this way the intended suggestive burning flame emulation is effectively obtained.
The four light emitting elements 6a,b,c,d are orderly arranged and accordingly connected
to the electric circuit.
[0023] When the device is set into operation, the light strikes the photovoltaic cell 3a
and causes a voltage to be generated thereby and to be sent to the electric circuit
5.
[0024] It is to be noted that the photovoltaic cell generates electricity even with a very
low light intensity, and therefore the device works in days of cloudy or foggy wheather
as well.
[0025] The electical input required by the circuit and by the light emitting elements (which
in this case are common red light emitting diodes, better known as LEDs) is so low
that some lectric energy can be stored in the accumulator elements 4, while the device
is fully working.
[0026] After a few hours in the sunlight, in the accumulator elements there is stored electric
power enough to ensure a continuous working of the device throughout the night.
[0027] In the illustrative embodiment just described, the flat photovoltaic cell 3a is arranged
on a plane perpendicular to the bottom of the box-like member.
[0028] According to another another embodiment the flat photovoltaic cell 33 is instead
coplanar to the bottom of the box-like member 32. This last embodiment may more advantageously
be applied to a horizontal marble slab, that is in case of a ground grave.
[0029] Anyway, in both cases, the box-like member 2,32 bottom can be detached from the same
so as to allow free access to the electric circuit and easy insertion of the accumulator
elements 4.
[0030] The result is a device that achieves the suggestive aesthetical effect without negative
drawbacks, as it has been proposed in the object statement.
[0031] The only thing necessary to be done is to replace the accumulator elements after
a few years and the flame will be always blazing as desired.
1. Endless votive lamp, characterized in that it includes:
a supporting and containing box-like member (2) having a hole at the top;
a light receiving-converting member (3), adapted to receive the light and to convert
it into electricity, this light receiving-converting member (3) including a photovoltaic
cell (3a); at least one accumulator element (4) housed inside said box-like member
(2);
an electric circuit (5), housed inside the same said box-like member (2) and connected
to said accumulator element (4), said circuit (5) being designed to generate a series
of modulated electric pulses made available on at least one output connector; at least
one light emmitting element (6a,b,c,d) connected to said output connector of said
electric circuit (5) and positioned near to the said box-like member top hole;
a glass cover (7) having shape of a burning flame and adapted to engage the rim of
the hole made at the top of said box-like member (2), so as to cover said circuit
and light emitting element and so as to emulate a blazing flame.
2. Lamp as claimed in claim 1, characterized in that four light emitting elements (6a,b,c,d) are connected to said circuit, these light
emitting elements being orderly arranged and accordingly connected to said circuit
(5).
3. Lamp as claimed in claim 1, characterized in that said light receiving and converting member (3) includes a flat photovoltaic cell
(3a) arranged on a plane perpendicular to the bottom of said box-like member (2).
4. Lamp as claimed in claim 1, characterized in that said light receiving and converting member (3) includes a flat photovoltaic cell
(33) arranged on a plane coplanar to the bottom of said box-like member (32).
5. Lamp as claimed in claim 1, characterized in that the bottom of said box-like member (2,32) can be detached from the same, so as to
allow free access to the said electric circuit (5) and easy insertion of the accumulator
element (4).