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Патент USA US3070865

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Jan. 1, 1963
ac. HALLOCK
3,070,855
LOUVER ASSEMBLY
Filed Oct. '22, 1959
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INVENTOR
'
EDWARD C. HALLOCK
BY
HIS ATTORNEYS
United States Patent 0 ‘rice
2
1
3,070,855
LOUVER ASSEMBLY
Edward C. Hallock, 9 Iris Road, Summit, NJ.
Filed Oct. 22, 1959, Ser. No. 847,967
3 Claims. (CI. 20-62)
This invention relates to a louver blade or sun shade
assembly and, more particularly, to a novel form of aero
3,070,855
Patented Jan. 1., I 1 963
The spar 12 is an extruded I-beam having'H-shaped
extensions 22 and 24 secured to its ?anges by soldering,
welding, gluing or the like. The H-shaped sections can,
of course, be formed integral with the I-beam as the
?anges thereof. Oppositely directed grooves or slots, 26,
27, 28 and 29 in the H-shaped members receive the free
edges of the forward and after sections, 8 and 10. A
high strength adhesive of the epoxy resin type or the like
or other means such as welding or soldering may be
dynamically shaped hollow louver blade.
Aerodynamically shaped louver blades are well known, 10 used to secure the sections 8 and 10 to the spar.
but generally their mode of construction is rather expen
The components of the blade may be cut to the de
sive, time consuming and di?icult involving extruding
sired length prior to assembly or subsequent to assembly.
blade sections of rather complex form and the assembly
thereof by welding, riveting and the like.
Also, as shown, the grooves, 26 to 29, in the I-beam and
is provided which comprises two opposed and comple
mentary elongated U-shaped sections of relatively sim
provide a substantially uninterrupted outer surface.
the edges of the blade sections are arranged so that the
In accordance with the present invention, a louver blade 15 blade sections can be fared into the spar smoothly to
FIGURES 3 and 4 also illustrate the manner in which
a pivot member 48 may be attached to the I-beam. In
ple form, and means to hold the sections together with
extruding the I-beam 12, ribs 50 and 51 having opposed
their open portions facing each other in such a way as
to form an aerodynamically shaped blade. More par 20 slots 52 and 53 are formed in one side of the web 56 of
the beam. Complementary pivot members 54 of the type
ticularly, the two sections are connected by means of a
disclosed in my US. Patent No. 2,822,587, dated Febru
beam or spar member having oppositely directed slots at
ary 11, 1958, are inserted in the ends of the slots 52 and
its edges in which the free edges of the U-shaped sections
53. The ribs extend the entire length of the extruded
are received. The beam may be of generally I-shaped
cross-section and is of approximately the same length as 25 .spar, so that regardless of the length of the blade the
pivot means can readily be inserted therein.
the U-shaped sections. The blade sections may be fared
smoothly into the beam to form a blade having a smooth
' To complete the blades, the open ends thereof are
and substantially uninterrupted outer surface.
closed by means of an insert of complemental shape which
The new blade may be used either as a ?xed or a
may be secured therein by means of a high strength ad
pivoted blade by providing it with an appropriate mount 30 hesive of the epoxy-resin type, sheet metal screws or in
ing means.
Louver blades of substantially any desired shape can
readily be assembled by forming U-shaped members of
any other suitable way.
A preferred material for the assembly is aluminum,
presenting an excellent appearance and work quality, but
obviously other materials including plastics may be uti
a desired speci?c shape and joining them as indicated
above. In addition to the advantages of simplicity and 35 lized.
I claim:
ease of manufacture and assembly of di?fererntly designed
1. A louver comprising elongated U-shaped blade sec
blades, it is readily apparent that louver blades can be
tions having spaced free, substantially parallel edges ex
made of any length desired on a production basis.
tending lengthwise thereof, an elongated spar having a
Other objects and advantages will become apparent
40 web and two substantially H-shaped ?anges on opposite
upon further consideration of the drawings, in which:
sides of and substantially perpendicular to said web, said
FIGURE 1 is a front view of a portion of a sun shade
?anges having oppositely-facing slots in and extending
or louver assembly of the present invention;
lengthwise of the edges of said ?anges, said slots receiv- .
FIGURE 2 is a view in section taken on line 2—2 of
ing said free edges of said sections, means securing said
FIGURE 1;
FIGURE 3 is a cross-sectional view taken on line 3—3 45 sections to said ?anges to form a tubular, aerodynamical
ly-shaped member, and means on the ends of said spar
of FIGURE 1; and
for supporting the louver.
FIGURE 4 is a sectional view taken on line 4—-4
2. A louver comprising two substantially U-shaped
of FIGURE 3.
blade sections, each one of said blade sections being elon
Referring to FIGURE 1, there is illustrated a louver
or sun shade 2 utilizing the louver blades 4 of the present 50 gated in a direction substantially normal to the plane of
invention. Essentially, the shade comprises parallel mul
lions or jambs 6 positioned horizontally or vertically with
the louver blades 4 pivotably or ?xedly mounted there
said U and having two edges spaced apart from and
substantially parallel to each other, said edges extending
generally lengthwise of said blade sections, an elongated
spar having two opposite edges extending generally
between in a spaced relationship to each other.
FIGURE 2 illustrates the adjustability of the louver 55 lengthwise of said spar, a ?ange formed on each of said
edges of said spar, each one of said ?anges extending
blades 4 with respect to each other.
generally lengthwise of said spar and having two oppo
Referring to FIGURE 3, a typical louver blade 4 com
site edges extending generally lengthwise of said spar,
prises a substantially U-shaped or V-shaped forward sec
said opposite edges of each one of said ?anges being
tion 8, and a substantially U- or V-shaped after section
10, and a center spar or beam 12 positioned between the 60 formed with two oppositely-facing slots extending. gen
erally lengthwise of said spar, said slots respectively re
two sections and adapted to hold them in a face-to-face
ceiving said edges of said blade sections, and means se
relationship to form a closed aerodynamically shaped
curing said blade sections to said spar to form a tubular, ,
unit. The forward and after sections 8 and 10 are air
foil shapes, having rounded leading and trailing edges,
aerodynamically-shaped member.
3. Apparatus comprising mullion means, a plurality
14 and 16 respectively, and slightly diverging sides or 65
of louvers, and means connecting said louvers to said mul
legs, 18 and 20. The particular shape may be varied de
lion means, each of said louvers comprising two substan
pending on the application desired.
3,070,855
3
4
tially U-shaped blade sections, each one of said blade
sections being elongated in a direction substantially nor
mal to the plane of said U and having two edges spaced
apart from and substantially parallel to each other, said
edges extending generally lengthwise of said blade sec
means securing said blade sections to said spar to form a
tubular, aerodynarnieally-shaped member.
References Cited in the ?le of this patent
UNITED STATES PATENTS
tions, an elongated spar having two opposite edges ex
22,600
999,547
2,142,283
tending generally lengthwise of said spar, a ?ange formed
on each of said edges of said spar, each one of said
?anges extending generally lengthwise of said- spar and
having two opposite edges extending generally lengthwise
Worthen et al _________ .. Jan. 11, 1859
Clark ______________ __ Aug. 1, 1911
Ohme ________________ __ Jan. 3, 1939
2,672,088
Orr ____ __'___'_ ______ _._ Mar. 16, 1954
of said spar, said opposite edges of each one of said
?anges being formed with two oppositely-facing slots ex
tending generally lengthwise of said spar, said slots re
2,822,587
Hallo'ck _____________ __ Feb.l1, 1958
spectively receiving said edges of said blade sections, and
122,622
Great Britain ________________ __ 1919
10
FOREIGN PATENTS
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