U.S. patent number 3,755,053 [Application Number 05/144,087] was granted by the patent office on 1973-08-28 for decorative panel for use as a bulletin board or display panel.
This patent grant is currently assigned to Romac Industries, Inc.. Invention is credited to David K. Lindahl.
United States Patent |
3,755,053 |
Lindahl |
August 28, 1973 |
DECORATIVE PANEL FOR USE AS A BULLETIN BOARD OR DISPLAY PANEL
Abstract
A decorative panel for use as a bulletin board or as a display
panel on which decorative objects may be placed. The device is
light weight and sturdy yet is economical to construct and is
attractively designed. In the preferred embodiment, the frame is
formed of plastic and is of unitary construction and has a first
wall about the inner periphery of one side thereof formed by
recessed shoulders and a second wall projecting from the outer
periphery of the other side thereof and extending beyond said
recessed shoulders. A burnt cork panel board is glued within the
confines of said first wall to the front side of said recessed
shoulders. The burnt cork panel board has a thickness equal to or
less than the depth of said recessed shoulders in order to prevent
damage to the edges thereof when the board is being handled. A
cardboard backing is glued within the confines of the second
projecting wall to the back side of said recessed shoulders to
provide stability to the board.
Inventors: |
Lindahl; David K. (St. Paul,
.) |
Assignee: |
Romac Industries, Inc.
(Minneapolis, MN)
|
Family
ID: |
22506979 |
Appl.
No.: |
05/144,087 |
Filed: |
May 17, 1971 |
Current U.S.
Class: |
428/81; 52/656.1;
428/192; 428/14; 428/455; 52/475.1; 52/795.1 |
Current CPC
Class: |
A47G
1/06 (20130101); E04C 2/388 (20130101); Y10T
428/3167 (20150401); Y10T 428/24777 (20150115) |
Current International
Class: |
A47G
1/06 (20060101); E04C 2/38 (20060101); B32b
001/04 (); E04c 002/20 () |
Field of
Search: |
;161/39-40,43-44,109,118,211,18 ;52/475,613,656 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Dier; Philip
Claims
I claim:
1. A decorative panel comprising:
a. a frame of unitary construction having
1. a vertical downwardly projecting wall about the inner periphery
of one side of said frame;
2. a recessed horizontal ledge projecting inwardly at the base of
said inner peripheral wall, and
3. a wall projecting vertically from the outer periphery of the
other side of said frame beyond said recessed horizontal ledge;
b. a panel board having a thickness equal to or less than the depth
of said inner peripheral wall and attached to said recessed
horizontal ledge within the confines of said inner peripheral wall
whereby the edges of said panel board are protected from damage,
and
c. a backing attached to the other side of said frame within the
confines of said outer peripheral wall and having a thickness equal
to or less than the distance said outer peripheral wall projects
beyond said recessed horizontal ledge.
2. A decorative panel as in claim 1 wherein:
a. said panel board is constructed of bulletin board material.
3. A decorative panel as in claim 2 wherein:
a. said bulletin board material is authentic burnt cork.
4. A decorative panel as in claim 3 wherein:
a. said frame is plastic.
5. A decorative panel as in claim 4 wherein:
a. said plastic is relatively thin in comparison to said cork and
said backing.
6. A decorative panel as in claim 5 wherein:
a. said backing is constructed of cardboard.
7. A decorative panel as in claim 6 wherein:
a. said cardboard is attached to the backside of said recessed
horizontal ledge with glue.
8. A decorative panel as in claim 7 further including:
a. a second horizontal ledge adjacent said outer peripheral wall
and in the same plane with and parallel to said recessed ledge to
provide support for the outer edges of said cardboard backing.
Description
BACKGROUND OF THE INVENTION
The present invention relates generally to a decorative panel and
in particular to a bulletin board or a display panel which is
economical yet attractive and which is light weight yet sturdy.
The panel comprises a plastic frame of unitary construction having
a vertically projecting wall about the inner periphery of one side
of said frame, a recessed horizontal ledge or shoulders projecting
inwardly at the base of said inner peripheral wall and a wall
projecting vertically from the outer periphery of the other side of
said frame beyond said recessed horizontal ledge. A cardboard
backing is attached to the other side of said frame within the
confines of the outer peripheral wall. The backing has a thickness
equal to or less than the distance the outer peripheral wall
projects beyond said recessed horizontal ledge. A cork panel board
is attached to the horizontal ledge within the confines of said
inner peripheral wall. The cork board has a thickness equal to or
less than the depth of said inner peripheral wall whereby the edges
of the panel board rests below the edges of the frame whereby the
edges of said panel board are protected from damage when the board
is being handled. Because the cardboard backing is attached to the
back side of the recessed shoulders within the confines of the
outer peripheral wall, the unit is given a great deal of stability
even though it is of light weight construction due to the
plastic.
SUMMARY OF THE INVENTION
The present invention enables an attractive display panel to be
constructed of light weight plastic such as polystyrene which is
old and well known in the art as is referenced in col. 3, line 13
of the patent to MacDonald, U.S. Pat. No. 3,498,001, and authentic
burnt cork in such a manner as to protect the burnt cork from
damage during handling and yet to provide a light weight yet sturdy
unit.
Thus, it is an object of the present invention to provide a
decorative panel which is economical to construct and yet
attractive and which is light weight and yet sturdy.
It is another object of the present invention to provide a
decorative panel having a plastic frame of unitary construction and
a recessed shoulder or ledge on the inner periphery thereof upon
which a burnt cork panel may be attached and on the back side of
which a cardboard backing may be attached for rigidity of the
unit.
It is still a further object of the present invention to provide a
decorative panel utilizing authentic burnt cork wherein the burnt
cork is so mounted within the plastic frame that damage to the cork
whenever the unit is handled is minimized.
It is still another object of the present invention to provide a
decorative panel in which rigidity is given to the unit by
attaching a cardboard backing to the back side of the same ledge or
shoulder on the other side of which the bulletin board material
such as burnt cork is attached.
BRIEF DESCRIPTION OF THE DRAWINGS
These and other more detailed and specific objectives will be
disclosed in the course of the following specification, reference
being had to the accompanying drawings in which:
FIG. 1 is an exploded view of the novel decorative panel showing
the plastic frame, the bulletin board material such as burnt cork,
and the backing material such as cardboard which gives rigidity to
the unit;
FIG. 2 is a cross-sectional view of the assembled panel shown in
FIG. 1, and
FIG. 3 is a front view of the plastic frame of unitary
construction.
DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 is an exploded view of the novel decorative panel showing
plastic frame 2, bulletin board material 4 which may be soft
material such as authentic burnt cork, and backing 6 which may be
of material such as cardboard the purpose of which is to give
rigidity to the unit as well as to provide a means for hanging the
unit on a wall.
As can be seen in FIG. 1, plastic frame 2 is of unitary
construction and has a first wall 8 about the inner periphery of
the front side thereof which is formed by recessed shoulder or
ledge 10. Further, a second wall 12 projects from the outer
periphery of the back side of said frame to a point beyond the
recessed shoulder or ledge. This will be able to be better seen in
FIG. 2.
Bulletin board material 4 is preferably constructed of authentic
burnt cork because of its light weight and attractive appearance.
By spraying glue on recessed shoulder or ledge 10 and pressing
corkboard 4 onto shoulder or ledge 10 within the confines of wall
8, the bulletin board is attached to the frame. As will be shown
more clearly with respect to FIG. 2 the burnt cork panel board 4
has a thickness equal to or less than the depth of said vertical
wall 8 to recessed shoulder or ledge 10 and has dimensions so as to
enable it to fit snuggly within the confines of said wall 8 formed
by said recessed shoulder or ledge 10.
Cardboard backing 6 has a thickness equal to or less than the
distance said second wall 12 on the outer periphery of said frame
projects beyond said recessed shoulder or ledge 10 and has
dimensions so as to enable it to fit snugly within the confines of
said wall 12. As will be seen more clearly with respect to FIG. 2,
cardboard backing 6 rests on the backside of recessed shoulders 10
and is glued thereto. If desired, a second ledge 18 may be provided
adjacent wall 12 to support the outer edge of said cardboard
backing 6 as shown in FIG. 2. Cardboard backing 6 also has a
plurality of indentations therein for the specific purpose of
hanging the unit on a wall. Indentation 14 is so placed with
respect to the upper edge of cardboard backing 6 that it serves to
hang the unit in a vertical position. Indentations 16 are so spaced
with respect to the longer side of said frame 2 that they can be
used to hang the unit in a horizontal position.
FIG. 2 is a cross-sectional view of the unit shown in FIG. 1 when
it is assembled. Like numerals in FIG. 2 have been used to indicate
corresponding elements in FIG. 1. Here, frame 2 can be seen to have
vertically projecting wall 8 about the inner periphery of the front
side of said frame with the recessed horizontal ledge or shoulder
10 projecting inwardly at the base of said inner peripheral wall 8.
Further, wall 12 can be seen projecting vertically from the outer
periphery of the back side of said frame. It will be noted that
wall 12 projects outwardly beyond the recessed horizontal ledge
10.
Here it can also be plainly seen that panel board 4, which may be
authentic burnt cork, rests on horizontal ledge 10 and is glued
thereto. Further, it can be seen that panel board 4 fits within the
confines of the inner peripheral wall 8 and has a thickness equal
to or less than the depth of said inner peripheral wall 8 whereby
the edges of the panel board are protected from damage whenever the
panel is being handled.
It can also be seen plainly in FIG. 2 that cardboard backing 6
rests on the backside of said recessed horizontal ledge 10 and, as
stated previously, is glued thereto. It can also be seen that
cardboard backing 6 is attached to the backside of said frame
within the confines of said outer peripheral wall 12 and has a
thickness equal to or less than the distance said outer peripheral
wall projects beyond said recessed horizontal ledge 10. This means
that cardboard backing 6 does not extend outwardly beyond wall 12
thus providing an attractive looking unit and yet providing the
necessary rigidity to a light weight decorative panel. As stated
earlier, second ledge or shoulder 18 may be provided adjacent outer
peripheral wall 12 as support for the outer edges of cardboard
backing 6. Shoulder 18 must be horizontally aligned with, and in
the same plane as recessed ledge 10 to provide proper support.
It will also be noted in FIG. 2 that the thickness of plastic frame
2 is very thin compared to the thickness of panel board 4 and
cardboard backing 6. This is necessary to provide a light weight
frame since most of the weight is in the plastic and most of the
thickness is in the light weight materials comprising the panel
board 4 and the cardboard backing 6.
FIG. 3 is a front view of the plastic panel 2 showing the cavity
formed by vertical wall 8 and recessed shoulders 10 into which the
burnt cork panel 4 is mounted. FIG. 3 shows that the width of
recessed shoulder or horizontal ledge 10 is sufficient to provide
adequate support for the burnt cork on the front side and the
cardboard backing 6 on the backside since both the burnt cork and
the cardboard backing are glued to this horizontal ledge.
Thus, there has been disclosed a novel decorative panel which
utilizes a plastic frame of unitary construction, a burnt cork
panel board for attractive appearance and a cardboard backing for
rigidity. Thus, the unit is attractive yet economical and is light
weight yet rigid.
Although this invention has been described with material reference
to a particular environment, there are features, construction
details, functional relationships and various changes which will be
apparent to one skilled in the art, and the invention is not to be
limited to any particular environment, features, construction,
materials, or functional relationships except as set forth in the
appended claims.
* * * * *