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Патент USA US3086452

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April 23, 1963
J. w. WALDRON
3,086,442
CLOSURE BLADE FOR LOUVERS
Filed Aug. 31, 1959
I
I
IIV ,I
A
INVENTOR
JOHN W. WALDRON
BY
HIS ATTORNEYS
United States Patent 0" "ice
3,986,442
Patented Apr. 23, 1963
2
extrusions forming the hollow members shown. As fur
ther shown in FIGURES 1 and 2, the sill 114, jambs and
3,086,442
CLOSURE BLADE FOR LOUVERS
head piece are provided with laterally extending ?anges
John W. Waldron, Summit, N.J., assignor to Extruded
15, 1-6, 17 and ‘18 which are adapted to butt against a
caulking or weather strip ‘19 mounted on the building
structure 20 adjacent the opening 21 in which the louver
frame ?ts thereby to e?lect a seal therewith. The building
structure and the weather stripping is illustrative and
Louver Corporation, Newark, N.J., a corporation of
New Jersey
Filed Aug. 31, 1959, Ser. No. 837,202
1 Claim. (Cl. 98—121)
may be modi?ed and varied as the purpose demands.
This invention relates to ventilating louvers ‘and the
like for mounting in ventilating openings in building
10
structures and it relates more particularly to a novel form
As shown in FIGURE 2, a plurality of essentially iden
tical louver blades 22, 23 and so forth, are mounted
within the .louver frame 10. The blades may be alumi
of louver having ?xed blades for closing a portion of
num extrusions, for example. On the front and back
the ventilating opening in which the louver is mounted.
of the blade 22, for example, are curved ribs 24 and 25
Ventilating louvers are usually constructed to ?t in
openings which are designed into a building structure 15 which form sockets ‘r'or receiving the threaded ends of
screws 26 and 27 inserted through the janrbs of the frame.
and they must be built and ?tted to conform to the archi
It should be noted that although the two screws 26 and
tectural plans of the building. Frequently, such louvers,
27 are shown as extending between and through both
in addition to their functional utility are included as a
the inner and outer portions of the vertical jambs 11 and
part of the ornamentation or design of the building and
for that reason may be considerably larger than the 20 12, it may be preferable to have the screws extend only
through the inner portions of the jambs to enhance the
openings in which they are used. They may be used
appearance of the louver structure. The outer portions
sometimes where there is no ventilating opening. In
such circumstances a portion of the louver structure may
of the jantbs would serve to hide the screw heads so that
no part of a fastener is exposed. Two screws at each end
be blocked off by means of inserts, panels and the like.
However, such panels alter the overall appearance of the 25 of each blade hold it ?rmly in position and against tilt
ing relative to the -frame 10. Also, the blades 22 and 23
louver structure with the result that ‘desired ornamental
effect is lost or modi?ed.
In accordance with the present invention, a louver
structure has been provided in which some of the blades
are replaced by novel types of blades which enable a
portion or all of the louver to be blocked off or covered
without rendering the appearance of the covered portion
have upwardly and downwardly extending ?anges 28 and
29 at their upper and lower edges respectively, and give
a solid and attractive appearance to the louver structure.
The shapes and sizes of the blades and the location of
the ribs 24 and 25 thereon can be modi?ed, as desired.
In accordance with the present invention, the lower,
upper, or middle section, or all of the louver can be
blocked out by means of the novel louver blades disclosed
louver. Elements are included in the new blades which
engage or ?t together to close the space normally present 35 in the lower portion of FIGURE 2. As shown, each of
the louver blades 30 and 31 has an inclined midportion
between the blades and at the same time provide the
of the louver any different than the remainder of the
appearance of normally spaced apart, inclined louver
blades.
More particularly, the new louver blades have front
32, for example, which corresponds generally in con
?guration .to the lower edge and midportion of the louver
blade 22. A downwardly extending ?ange 33 on the
and back con?gurations matching the other spaced louver 40 blade 30 corresponds to the ?ange 29 on the blade 22.
blades of the louver, but the new blades have a laterally
directed ?ange which engages the back of an adjacent
louver blade thereby to close off the space therebetween.
Also ribs 34 and 35 on the blade 30 correspond in shape
and location to the ribs 24 and 25 of the blade 22. The
blade 30 differs from the blades 22 and 23 by having
an upwardly and ‘forwardly extending ?ange 36 at its
Elements may be provided on the louver blade for en 4.5
rear or inner edge which engages the back of a blade 37
gagement with the ?ange on an adjacent blade whereby
a tight joint is obtained therebetvveen and substantial
st-ilfening and reinforcement of the structure is provided.
\In accordance with the invention the closure ?anges on
above it. Likewise, the upwardly extending ?ange 38
on the blade 31 engages the back of the blade 30 at a
point adjacent the rib 35 thereon. ‘In order to stabilize
the louver blades are so arranged that they are concealed 50 the blade 38 against wind forces and the like, the blades
31, 32, etc., may be provided with downwardly extend
from view and hence, from the outer side of the louver
ing ?anges 39 in spaced relation to the rib 35 to form a
structure, it appears to afford spaces for flow of air
groove 40 receiving the edge of the ?ange 39. A caulk
ing compound or a caulking strip may be introduced
For a better understanding of the present invention,
reference may be had to the accompanying drawing, in 55 into the groove to seal the edge of the flange 39 to the
adjacent blade although this usually is unnecessary.
which:
therethrough.
FIGURE 1 is a view in horizontal cross section through
The ‘blade 37 may be different from the blades 22 and
30. Its front and back surfaces may be similar to the
a typical louver structure embodying the present inven
front and back surfaces of blade 22 with the exception
tion and a portion of the building structure in which
that it has a downwardly extending ?ange 41 thereon to
the louver is mounted;
60 term the groove 42 for receiving the upper edge of the
FIGURE 2 is a view in section taken on line 2—2; and
?ange 39. It will be clear that the blades 30, 31, 37 and
FIGURE 3 is a view in vertical section through a modi
?ed torm of louver structure.
The louver chosen for purposes of illustration includes
so forth, enable a part or all of the space within the
louver frame 10 to be blocked off to thereby control
the air ?ow space therein or to enable a totally closed
a frame 10 provided with vertical jambs 11 and 12 65 louver to be used for ornamental purposes :where there
formed of hollow aluminum extrusions or the like which
are no ventilating openings in the building structure, if
are connected at their upper ends by a hollow head piece
desired.
13 and at their lower ends by a hollow sill ‘14. The
‘It will be understood that the new blades are suscept
structure and arrangement of the elements of the frame
ible to considerable modi?cation. Thus, as shown in
10 can be varied widely. For instance, the vertical jarnbs 70 FIGURE 3, the curved rib 43 forming the channel for
receiving the locating screw 44 may be mounted on the
11 and 12, the hollow head piece 13, and the hollow sill
14 may be comprised of two mating and interlocking
upwardly extending ?ange 45 of the blade 46. Other
3
3,086,442
4
arrangements of the screw receiving ribs can be made to
of said blade portion toward the opposing surface of
conform to the shape and appearance of the ventilating
blades of the louver. Accordingly, it will be understood
an adjacent blade, and means on said opposing surface
of said adjacent blade engaging said ?ange and cooper
ating therewith to close the space within said frame be
tween said one blade portion and said adjacent blade.
that the forms of the invention described are illustrative
and not ‘limiting and that the invention is limited only
by the terms of the following claim.
I claim:
References Cited in the ?le of this patent
UNITED STATES PATENTS
A ventilating louver for building structures compris
ing a frame to ?t in an opening in a building structure,
a plurality of louver blades mounted in said frame in
spaced apart, substantially parallel relation, said blades
having front and back surfaces inclined to the plane of
the front of said frame, at least one closure blade
mounted in said frame having a blade portion extending
lengthwise ‘and transversely thereof in substantially paral
lel relation to said plurality of blades and a front edge
‘adjacent to the front of said frame and a rear edge dis
posed between the front and back of said frame, and a
?ange extending laterally from adjacent said rear edge
2,093,860
Austin ______________ __ Sept. 21, 1937
2,480,562
2,612,097
Ewing ______________ __ Aug. 30, 1949
Piollman ____________ __ Sept. 30, 1952
559,091
Great Britain _________ __ Feb. 3, 1944
FOREIGN PATENTS
10
OTHER REFERENCES
Catalogue by Lon Sommerfeld, Inc., N.Y., 1953 (page
4 only).
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