A muntin for attachment to a construction block structure is constructed of a tubular member having a top and a bottom. A channel extends along the length of the bottom. At least one prong, having a generally triangular head extends outwardly from the channel. The muntin is placed into a grout groove of the construction block structure such that the prong and head are received within the grout and the grout seeps into the channel. Once the grout dries, the muntin is securely held to the construction block structure.

BACKGROUND OF THE INVENTION 
1. Field of the Invention 
The present invention relates to a muntin system usable with a construction 
block structure. 
2. Background of the Prior Art 
Muntins have been used with windows and other partition structures for many 
years. However, they have not been used most construction block structures 
due to the awkwardness of installation of the muntin to the structure. 
Therefore, there is a need in the art for a muntin that can be attached to 
a construction block structure in order to change or enhance the 
appearance of the structure. The muntin should not be awkward or otherwise 
difficult to install and should be readily replaceable. 
SUMMARY OF THE INVENTION 
The muntin of the present invention addresses the aforementioned needs in 
the art. The muntin is quickly and easily attached to a construction block 
structure along the grout groove formed between adjacent construction 
blocks. The muntin is of relatively simple and straightforward design. 
A muntin is comprised of a tubular member having a top and a bottom. The 
top and the bottom combine to give the muntin any desired shape such as 
rectangular, hemishirical, triangular, etc. The exact shape is dependant 
on the type of look desired as well as the shape of the grout groove to 
which the muntin is to be positioned. A channel extends along the length 
of the bottom. At least one prong, having a generally triangular head 
extends outwardly from the channel. The muntin is placed into a grout 
groove of the construction block structure such that the prong and head 
are received within the grout and the grout seeps into the channel. Once 
the grout dries, the muntin is securely held to the construction block 
structure. The head of the prong prevents the muntin from being withdrawn 
from the grout. 
Alternately, the muntin comprises a top and a bottom defining a channel. 
The top and the bottom combine to give the muntin any desired shape such 
as rectangular, hemishirical, triangular, etc. A continuous opening or a 
plurality of spaced apart openings is located on the bottom. The muntin is 
placed into a grout groove of the construction block structure such that 
the grout seeps into the channel through the continuous opening or 
plurality of openings. Once the grout dries, the muntin is securely held 
to the construction block structure. The bottom prevents the muntin from 
being withdrawn from the grout.

Similar reference numerals refer to similar parts throughout the several 
views of the drawings. 
DESCRIPTION OF THE PREFERRED EMBODIMENT 
Referring now to the drawings, it is seen that the muntin of the present 
invention, generally denoted by reference numeral 10, is comprised of a 
base member 12, which may be tubular, 12 having a top 14 and a bottom 16. 
A channel 20 extends along the length of the bottom 16. At least one prong 
22 extends outwardly from the channel 20 and has a head 24 disposed on the 
top of the prong 22. As seen, the head 24 has a pointed end and may be 
triangular in shape. Although the prong 22 and head 24 are illustrated as 
one continuous member, a plurality of spaced apart prongs 22 with attached 
heads 24 can also be utilized. 
As seen in FIGS. 1-3, a construction block structure 26 is comprised of a 
plurality of interconnected construction blocks 28, the construction 
blocks 28 being interconnected in any desired fashion known in the art. 
The construction block structure 26 may, but need not be disposed within a 
frame 30. A grout groove exists between each pair of adjacent construction 
blocks 28. The construction blocks 28 may have one or more flanges 32 that 
help define the grout groove. Grout 34, of any appropriate composition, 
such as silicone and the like, is disposed within the grout groove. 
In order to utilize the muntin 10, the grout 34 is placed into the grout 
groove and while the grout is still wet, the muntin 10 is placed onto the 
construction block structure 26 such that the prong 22 and head 24 are 
received within the grout 34 and the grout 34 seeps into the channel 20. 
As seen in FIG. 2, once the grout 34 dries, the muntin 10 is securely held 
to the construction block structure 26. The base of the head 24 prevents 
the muntin 10 from being pulled out of the grout 34. If multiple muntins 
10 are used on a single construction block structure 26, then at least one 
of the intersecting muntins 10 is appropriately formed so as to assure an 
aesthetically appealing "crossing" of muntins 10. 
As seen in FIGS. 7-10, an alternate embodiment of the muntin 10' of the 
present invention comprises a tubular member 12' having a top 14' and a 
bottom 16' that define a channel 20'. A single opening 38 or a plurality 
of openings 38' are located on the bottom 16'. When the muntin 10' is 
placed onto the construction block structure 26, the grout seeps into the 
channel 20' through the continuous opening 38 or the plurality of openings 
38'. As seen in FIG. 6, once the grout 34 dries, the muntin 10 is securely 
held to the construction block structure 26. The bottom 16' prevents the 
muntin 10 from being pulled out of the grout 34. 
While the invention has been particularly shown and described with 
reference to an embodiment thereof, it will be appreciated by those 
skilled in the art that various changes in form and detail may be made 
without departing from the spirit and scope of the invention.