U.S. patent number 3,754,132 [Application Number 05/193,930] was granted by the patent office on 1973-08-21 for reflector for decorative illumination and luminous advertisement.
Invention is credited to Abram Mamrud, Gerhard Priebe.
United States Patent |
3,754,132 |
Mamrud , et al. |
August 21, 1973 |
REFLECTOR FOR DECORATIVE ILLUMINATION AND LUMINOUS
ADVERTISEMENT
Abstract
Reflector for decorative illumination and luminous advertisement
comprised of a hollow pyramidal body with a central axis and having
regularly, polygonal base area contour, further having
configuration of at least two axially superimposed truncated
pyramids, the body made of plastic or metal as deep-drawing body,
the respective apex angles of the pyramids increasing with
decreasing respective base area. A mounting flange with pockets for
receiving connector elements, extends transverse to the base area,
and from the outer periphery of the body at the largest base area
of the pyramids.
Inventors: |
Mamrud; Abram (1 Berlin 15,
DT), Priebe; Gerhard (1 Berlin 15, DT) |
Family
ID: |
6615619 |
Appl.
No.: |
05/193,930 |
Filed: |
October 29, 1971 |
Foreign Application Priority Data
|
|
|
|
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Nov 2, 1970 [DT] |
|
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G 70 41 565.5 |
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Current U.S.
Class: |
362/346 |
Current CPC
Class: |
F21V
21/00 (20130101); F21V 7/05 (20130101); G09F
13/14 (20130101) |
Current International
Class: |
F21V
7/05 (20060101); F21V 7/00 (20060101); F21V
21/00 (20060101); G09F 13/14 (20060101); F21v
007/05 () |
Field of
Search: |
;240/1R,1S,41.36,41.35C,41.35F,13R,13C,9R ;40/13J |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Matthews; Samuel S.
Assistant Examiner: Adams, Jr.; Russell E.
Claims
We claim:
1. A decorative illumination and luminous advertisement panel
comprised of a reflector assembly having a plurality of adjacent
reflectors each having a hollow pyramidal body with a central axis
and having configuration of at least two axially superimposed
truncated pyramids each of said truncated pyramids having a regular
hexagonal base area, the body made of plastic or metal as
deep-drawing body, the respective apex angles of the pyramids
increasing with decreasing respective base area; each reflector
having additionally a mounting flange on the body, extending about
transverse to the base area of the largest base area of the
pyramids; and
means for interconnecting adjoining mounting flanges of said
adjacent reflectors.
2. Reflector assembly as in claim 1, the reflectors each being
provided with a central opening, concentrical to the axis, for
receiving a bulb socket.
3. Reflector assembly as in claim 1, each mounting flange provided
with at least one pocket having a slot extending in axial direction
for receiving a connector element of H-shaped profile as one of the
means for interconnecting.
4. Reflector as in claim 1, there being two truncated pyramids with
hexagonal base.
Description
The present invention relates to reflectors cooperating with light
sources for decorative illumination, luminous advertisement and
other purposes.
It is an object of the present invention to provide a reflector
that gives the impression to the viewer that he sees multiple light
sources; the reflector is to be used as supPorting and building
block component for and in advertising signs having, e.g., larger
letters, channe letters or the like.
In accordance with the preferred embodiment of the invention, it is
suggested to provide a reflector in form of plural, superimposed,
truncated pyramids with a common axis and polygonal bases, and
having larger apex angles for the respective truncated pyramids of
smaller base area. The outer periphery at the base of the largest
pyramid is to have a mounting strip or flange extending transverse
to the base area, i.e., parallel to a common axis of the pyramids.
Preferably, two truncated pyramids are used, with a hexagon as
polygon to define the base contour of each pyramid.
While the specification concludes with claims particularly pointing
out and distinctly claiming the subject matter which is regarded as
the invention, it is believed that the invention, the objects and
features of the invention and further objects, features and
advantages thereof will be better understood from the following
description taken in connection with the accompanying drawings in
which:
FIG. 1 is a front view of a reflector, constructed in accordance
with the preferred embodiment of the invention;
FIG. 2 is a section view along line A-B of FIG. 1; and
FIG. 3 illustrates a detail, in section view, of two combined
reflectors with connecting parts.
Preceding now to the detailed description of the drawing, in FIG. 1
is illustrated a reflector 1 having base contour of a regular
hexagon. The reflector itself is constructed as two hollow
superimposed truncated pyramids and the reflecting surfaces proper
are constituted by twelve planar, internal surfaces 2. These
surfaces are mutually inclined to each other to establish two
six-sided pyramids of different apex angles.
The surfaces 2 themselves are the individual reflector elements,
for reflecting the filament of a light bulb; or in case the bulb
has a frosted envelope, the luminous bulb itself is reflected by
each of these surfaces. Reflection may result by using deep drawn
metal that is polished and provides by itself specular reflection.
In case of plastic, the inner surfaces should be metallized to
obtain reflective surfaces.
The light bulb (not shown) is arranged in the interior of the
reflector construction and on the central and common axis of the
double-truncated pyramid. The bulb may be of the two-color variety
in that its surface below the portion of largest diameter has one
color, the remainder of the bulb having the other color. In order
to receive the bulb socket, a central opening 3 is provided in the
reflector, receiving the electrical connecting components and
socket etc., of the bulb.
The reflector is to be used as self-supporting component and
carrier. Therefor, a mounting flange 4 is provided, transverse to
the base area of the reflector and extending from the periphery of
largest diameter, in hexagon contour, around the axis of the
reflector unit; the flange runs parallel to the pyramid axis.
Plural such reflectors can be combined by connection of the
respective mounting flanges 4 to establish large illuminating units
such as letters, luminous areas, pictures, etc.
Each mounting flange 4 has on its inside at least one pocket 5
(plural pockets are shown in the drawing). The pocket extends
transverse to the hexagon contour area base of the reflector and
has rectangular cross section (in the plane of pyramid base). A
central-symmetrically running slot 6 is provided for access from
the outside to pocket 5 and running parallel to the axis of the
reflector (see FIG. 2). The slot 6 serves for receiving a connector
element 7, having H-shaped profile (see FIG. 3). The cross bar of
the H traverses the aligned slots 6 of two juxtaposed reflectors.
This way, juxtaposed reflectors are positively interconnected.
In cases it may be advisable to combine plural reflectors in
integral construction to obtain subgroupings of plural reflectors
as basic units or building blocks, reducing the amount of mounting
work and handling needed at the installation site. As an example,
one can think of barlike assemblies to be used as basic lines in
the assembly of letters.
The invention has the advantage that very effective illuminating
advertisement displays can be assembled at low cost with little
expenditure and by means of basically simple construction. Also,
the assembly may easily be taken apart. This is of particular
advantage as decorations, window displays, etc., are frequently
changed. The individual reflectors or subgroupings thereof may be
made of plastic. As they are self-supporting and stabil in
themselves; even large configurations can be assembled without
requiring additional support and carrier structure. The connecting
element 7, as described, permits also quite rapid assembly and
combining of many reflectors. Also, the reflectors can subsequently
be equipped electrically subsequently, and bulbs can be inserted
quite simply as each reflection is also the carrier of a lamp and
bulb holder.
The invention is not limited to the embodiments described above but
all changes and modifications thereof not constituting departures
from the spirit and scope of the invention are intended to be
included.
* * * * *