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Патент USA US3088031

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April 30, 1963
c. u. DEATON
3,088,025
LIGHT-RAY BAFFLE CONSTRUCTION
Filed Oct. 12, 1959
3 Sheets-Sheet 1
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INVEN
CHARLES U. DEA
4/
BY
FIG.2_
ATTORNEY
.
N
_ April 30, 1963
c. u. DEATON
3,088,025
LIGHT-RAY BAFFLE ‘CONSTRUCTION
Filed Oct. 12, 1959
’
a Sheets-Sheet 2
4
,
4—> 4/
/
7%,
/35
3
FIG. 6
IN VEN TOR.
ATTORNEY
April 30, 1963
c. u. DEATON
3,083,025
LIGHT-RAY BAFFLE CONSTRUCTION
Filed Oct. 12, 1959
5 Sheets-Sheet 3
IOFIG.
IN VEN TOR.
CHARLES U. DEATON
ATTORNEY
3,088,025
p
United States Patent 0 ' ICE
1
Patented Apr. 30, 1963
2
LIGHT-RAY BAFFLE CONSTRUCTION
cated in the form of a metallic U-shaped channel having
a bight 5 and parallel sides 6, 7 respectively terminated
in inwardly bent ?anges 8, 9. Located in bight 5 are two
Charles U. Deaton, 9635 W. Colfax Ave.,
Lakewood 15, Color.
Filed Oct. 12, 1959, Ser. No. 845,793
14 Claims. (Cl. 240-78)
teners 12, each inserted over a lateral margin of bight 5,
the threaded portion of said lock-nut fastener 12 coming
3,088,025
spaced apertures 10 adapted for receiving machine screws
11, said screws being held in place by lock-nut type fas
into alignment on opposite sides of an aperture 10. Lo
cated centrally between apertures 10 on bight 5 and ex
ful improvements in light-ray baffle construction and,
tending thereacross and downwardly along side 6 is an
more particularly, to certain grid-like devices or so-called 10 elongated slot .13, which is intersected part way down side
“louvers” adapted for ef?ciently transmitting light while
6 by a second elongated slot 14, the latter being perpen
at the same time effectively masking the light source from
dicular to slot 13. ‘It should be noted that slots 13 and 14
direct view.
have sut?cient width to clear a threaded member and a
Light-ray baffles are used in conjunction with various
nut therefor, respectively. ‘It should also be noted that
types of light sources, either across the bottom of indi 15 slot 14 is substantially below the bottom surface of bight
vidual lighting ?xtures, or, across the bottom of an array
5, there being a substantial amount of surface area 15
of lighting ?xtures. The baf?es are intended to cause
between each side of slot 14 and the under side of bight 5.
light diffusion and even dispersion of the light-rays. Con
Secured in the portion of slot 13 which lies on bight 5
ventional structures of this type are either of the “egg
is a threaded rod ‘16 which is secured in slot 13 by means
crate” or “cell” type and, in both types, the thin vertical
of nuts .17, 18, said nuts being adapted to facewise en
elements are tightly interlocked and a permanent cellular
gagement with the upper and lower surfaces of bight 5,
arrangement which is very difficult to clean.
respectively. Threaded rod v16, at its upper end, is pro
It is, therefore, the primary object of the present inven
vided with conventional means, such as a bracket b hav
tion to provide a light-ray ba?ie which can be quickly and
25 ing conventional bolts c, for attaching to a ceiling or
conveniently cleaned.
other supporting structure. In use, threaded rod \16 is
It is another object of the present invention to provide
attached to hanger clip 1 in the following manner. Nut
a unique type of light-ray baffle which is simple and eco
17 is moved upwardly on threaded rod 16, thereby caus
nominal in cost and highly attractive in appearance.
ing a separation between the nut 17 and nut ‘18. After
It is a further object of the present invention to provide
nut '17 has been raised a suitable distance, the lower end
a light-ray baffle which can be readily disassembled, re
of threaded rod 16 and nut 18 are slipped through slot '13
assembled, mounted, and demounted, With a minimum of
and slot 14, respectively, and the hanger clip is then re
time and effort.
leased to rest on the upper surface of nut 18. When
It is an additional object of the present invention to
hanger clip 1 has come into rest with said upper surface
provide a light-ray baffle comprised of grids which are 35 of nut 18, nut 17 is then tightened down into facewise
This invention relates in general to certain new and use
readily removable for painting or replacement.
It is still another object of the present invention to pro
vide a unique and novel means for rotatably mounting an
array of grids on a light-ray ba?ie.
engagement with the upper surface of bight 5, thereby
clamping threaded rod 16 to hanger clip -1 between nuts
17 and v18. The areas of surface 15 between the bottom
surface of bight 5 and slot 14 serve to prevent nut 18 from
With the above and other objects in view, my invention 40 accidentally sliding out through slot 14.
resides in the novel features of form, construction, ar
The channel support 2 is sized for nested disposition
rangement, and combination of parts presently described
and pointed out in the claims.
In the accompanying drawings (three sheets)—
within hanger clip -1 and integrally includes a bight 19
and parallel sides 20, 21, sides 20 and 21 extending down
wardly and terminating in straight margins adapted to
FIG. 1 is a fragmentary perspective view of a light-ray 45 rest on ?anges 8, 9 of hanger clip 1. Located near the
baffle or louver constructed in accordance with and em
bodying the present invention;
FIG. 2 is a sectional view of the present invention taken
along line 2--2 of FIG. 1;
lower edges of sides 20, 21 and in horizontal alignment
is a plurality of slots 22, 23, respectively, slots 22, 23 dif
fering only in that slots 22 are located in sides 20* and slots
23 are located in sides 21. Slots 22 and 23 are provided
FIG. 3 is a sectional view of one of the grid elements 50 intermediate their sides with a pair of shoulders 24, 25,
taken along line 3-3 of FIG. 2;
respectively, so that slots 22 and 23 are more narrow
FIG. 4 is a sectional view of the same element taken
at one end than they are at the other. ‘It should be noted
along line 4--4 of FIG. 3;
here that the spacing between the individual slots 22 in
side 20 and the individual slots 23 in side 21 is equal and
55 uniform, whereby when two such channel supports 2 are
taken along line 5--5 of FIG. 2;
FIG. 6 is a sectional view taken along line 6-6 of
properly aligned so that side 20 of one channel support 2
faces side 21 of the other support, the slots will de?ne a
FIG. 2;
FIG. 7 is a partial view of the grid network of FIG. 2;
series of equally spaced parallel lines. Furthermore, it
‘FIG. 8 is a perspective view of the detailed parts form
should be noted that the length of hanger clip 1 is selected
60 to be substantially less than the spacing between adjacent
ing the hanger clips;
FIG. 9 is a partially cut away view of a channel support
slots, such that hanger clip 1 may be inserted about chan
nel support 2 without interfering with any of the slots
showing a channel installed therein;
FIG. 10 is a partially cut away view of a channel sup
22 or 23. Preferably, though not necessarily, the slot in
terference problem may be further reduced by spacing the
port without a channel installed; and
FIG. 11 is a perspective view of the detailed parts re 65 slots 22 and 23 of one channel support 2 in alignment
throughout said channel support. Channel support 2 is
quired to install a grid element to a channel.
Referring now in more detail and by reference charac
fastened to hanger clip 1 in the following manner. Chan
nel support 2 is slidably inserted in hanger clip 1 and
ters to the drawings, which illustrate a preferred embodi
hanger clip 1 is properly positioned thereon. When
ment of the present invention, A designates a light-ray
baffle assembly comprising a plurality of hanger clips 1, 70 hanger clip 1 is in the proper position, machine screws 11
are tightened thereby coming into contact with bight 19
channel supports 2, channels 3, and grid elements 4.
FIG. 5 is a sectional view of a second grid element
Hanger clip 1 is preferably, though not necessarily, fabri
of channel support 2, forcing the lower margins of sides
3
3,088,025
20 and 21 into compressive engagement with ?anges 8, 9
of hanger clip 1, thereby creating a frictional force be
aligned preferably, though not necessarily, parallel to
tween the bottom margins of sides 20 and 21 and the
the ?at surface formed by the plurality of aligned ?at
surfaces 35. In addition, should one grid element be
struck by something from the ground and resultingly
upper surfaces of ?anges 8, 9. To remove hanger clip 1
from about channel support 2, it is necessary merely to
loosen machine screws 11 after anything which has been
channels 3 and a brush and damp cloth moved along
damaged, or, should it be damaged as a result of a defect
inserted in slots 22 or 23 of channel support 2 has been
removed.
in the light source, the grid element itself may be readily
It should be also noted that the bottom portion of slots
elements 34 of spring-clip 31 together and sliding the
removed merely by compressing outwardly protruding
22 and 23 are of ample width to permit installation of 10 grid element 4 directly thereof.
channels 3 therein.
The particular design also lends itself to a variety of
Inserted in the bottom portion of slots 22 and 23 and
light-ray baf?e installations ranging from a single ?xture
interlocked therein by means of a notch 26 are channels
to an entire ceiling of light ?xtures. Inasmuch as the
3, channels 3 comprising an elongated U-sh-aped mem
length
of channels 3 and the length of channel supports
ber having a bight 27 and parallel walls 28 and 29. 15
2 are variable, and further since the channel supports 2
Channel 3 is provided with notch 26 at either end, one
are provided with slots 22 on both of their sides, and
end being for insertion in the narrow slot of slot 23 in
channel support 2, the other notch at the other end being
for insertion in the narrow portion of slot 22 in a sec
?nally since any number of hanger clips 1 may be used,
the light-ray ba?le of the present invention is adaptable
to any installation.
ond channel support 2. Spaced along bight 27 of chan 20
Although the present ba?le arrangement was described
nel 3 is a plurality of longitudinal slots 30, each having
as being one which depended from the ceiling, it is
a spring-clip 31 inserted therein, spring-clip 31 compris
understood that the same arrangement readily lends itself
ing an arcuate bend 32 of spring wire forming substan
for use in front of a vertical window or in any other
tially a circle, said bend being terminated in a narrow
required vertical plane. The light source depicted in
neck 33 and a pair of outwardly depending elements 34. 25 FIG. 1 may be any conventional type of light source
Longitudinal notch 30 and narrow neck 33 are properly
such as ?uorescent tubes. Since the source of light is
sized so that when spring-clip 31 is inserted in said
conventional, it is not described or shown in detail herein.
notch, a tensile force is created between the elements of
The ba?le can also be used as a window screen or
spring-clip 31 at narrow neck 33 and the endwise sides
exteriorly of a building to prevent undesired sunlight
of narrow notch 30, whereby to retain spring-clip 31 30 from hitting the building from certain angles and affect
within slot 30.
ing the furnishings and personnel therein. For instance,
Attached to channels 3 by means of spring-clips 31 is
it may be desirable that the low sun of the morning
a plurality of grid elements 4, each grid element com
and the low sun of the late afternoon be prevented from
prising a large ?at plate section 35, said plate section
entering the building. A system of baf?es, therefore, ar
extending downwardly, and a horizontal ?ange 36 at 35 ranged
in a particular pattern, could be directed to the
tached to the top of plate section 35. Flange 36 extends
south, in the case of the Northern hemisphere, thereby
obscuring the sun at the desired times and permitting to
trally located diamond-shaped aperture 37, the center of
enter at the other times.
said aperture being in alignment with the center of plate
The louver system can also be used as a grill for the
35. Located in plate 35 directly below the diamond 40 passage
of air, being used to direct the air in a particu
shaped aperture 37 and extending downwardly into plate
outwardly on both sides of plate 35 and contains a cen
35 is a large aperture 38, which provides clearance for
the elements 34 of spring-clip 31, which extends through
diamond-shaped aperture 38, thereby permitting grid ele
lar direction, or its primary purpose may be to obscure
In the case of
the vision of the sources of the air.
grills used for air-conditioning, the purpose is two-fold,
that of directing the air in a particular direction and also
ment 4 to be rotated freely beneath channel 3. It should 45
as a visual block against seeing the interior of the air~
be noted that preferably, though not necessarily, the four
duct which is not always tidy.
points of diamond-shaped aperture 37 are located so that
It should be understood that changes and modi?cations
two of the points lie in the plane of ?at plate 35 and
in the form, construction, arrangement, and combination
the other two points de?ne a line perpendicular to plate
35, whereby, when said grid element 4 is secured to 50 of the several parts of the light-ray baf?e construction
may be made and substituted for those herein shown
channel 3 by means of spring-clip 31 being inserted in
and described Without departing from the nature and prin
diamond-shaped aperture 37 through longitudinal notch
ciple of my invention.
30, the outwardly facing sides of neck 33 will engage a
Having thus described my invention, what I claim and
pair of opposite points of said diamond-shaped aperture
desire to secure by Letters Patent is——
and grid element 4 can be aligned either perpendicularly 55
l. A light-ray ba?le comprising a pair of complemen
to, or parallel to, the longitudinal axis of channel mem
tary
U-shaped channel supports, a plurality of channels
ber 3. It should be also noted that the spacing between
interposed between and supported by said supports, a
notches 30 and channels 3 should be su?icient to permit
plurality of baflles, a spring clip pivotally mounting said
free rotation of grid element 4 about channel 3.
baffles
about their vertical axis on said channels, and
In use, the invention may be used in the following 60
means for holding said channel supports in ?xed rela
manner. A plurality of channels 3, each having an op—
tionship to a light source.
timum number of grid elements 4 attached thereto by
2. A light-ray ba?le comprising a pair of complemen
spring-clips 31, are inserted between a pair of channel
tary
U-shaped channel supports, a plurality of channels
supports 2 which are secured to a ceiling or lighting
?xture by means of hanger clip 1 with threaded rod 16 65 interposed in parallel relationship between and supported
by said supports, a plurality of battles, a spring clip piv
inserted therein. After the ?xture is completely installed,
otally
mounting said ba?le-s about their vertical axis on
as previously described, the individual grid elements'may
be rotated about channel 3 to any desired pattern to
said channels and being individually selectably position
able thereon, and means for holding said channel sup
obtain a desired amount of light dispersion and diffusion,
ports in ?xed relationship to a light source.
such as the arrangement depicted by FIG. 7. Because 70
3. A light-ray bat?e comprising a pair of complemen
the grid elements 4 are freely rotatable about channels
tary U-shaped channel supports, a plurality of channels
3, any desired pattern may be obtained without requir
ing that the entire light ba?le be disassembled and brought
down. Furthermore, should it be desirable to clean the
light ba?les in place, all of the grid elements 4 may be 75
interposed in parallel equally spaced relationship be
tween and supported by said supports, a plurality of bat
?es, a spring clip pivotally mounting said ba?ies about
their vertical axis on said channels and being individually
3,088,025
5
selectably positionable thereon, and means for holding
said channel supports in ?xed relationship to a light
source.
4. A light-ray ba?le comprising a pair of complemen
tary U-shaped channel supports, a plurality of channels
face being adapted to pass through said ?rst and second
elongated slots, means ‘for moving said second ?at sur
face toward said ?rst ?at surface, and means for secure
ly clamping the bight of said element between said sur
faces, said member being provided at its other end with
interposed in parallel equally spaced relationship between
means for rigidly mounting said member to a ?xed struc
and supported by said supports, a plurality of baf?es, a
ture.
spring clip pivotally mounting said baffles about their
vertical axis on said channels and being individually se
7. A hanger clip for use in a light-ray ba?le which in
cludes a U-shaped channel support mounting having a
lectably positionable to either ‘perpendicular or colinear 10 bight and parallel sides, said hanger clip comprising a
U-shaped element having parallel sides connected by a
bight, the parallel sides of said element being provided
with lower longitudinal margins, the parallel sides of
said element being spaced to provide overlap of said
channel support and being provided with ?anges which
extend inwardly beneath the longitudinal margins of the
means including a plurality of elongated U-shaped chan
parallel sides of the channel support, the bight being pro
nels from which said ba?les are supported in uniformly
relationship with respect to said channels, and means for
holding said channel supports in ?xed relationship to a
light source.
5. In a light-ray ba?le including a plurality of baffles,
means for aligning said ba?ies in parallel arrays, said 15
spaced relationship, said channels being provided with
vided with a transverse slot which extends substantially
across said bight and continues substantially across one of
notches at each end, said notches extending transversely
across the bights of said U-shaped channels and partially 20 the ‘parallel sides of said element, said last named parallel
side also being provided with a second elongated slot which
up the sides thereof, a support member comprising a pair
intersects said ?rst slot, said ?rst and second slots hav
of parallel walls, each containing a plurality of uniformly
ing substantial width and being mutually perpendicular
spaced apertures, said apertures'having an upper portion
whereby to permit the insertion of a threaded member
and a lower portion, said lower portion being sized slight
ly wider than said U-shaped channels and having a straight 25 containing a nut thereon, means adjustably mounted on
the bight of said element for contacting the bight of said
margin, said upper portion being substantially wider and
channel support and urging the ends of the parallel sides
deeper than said U-shaped channels, said U-shaped chan
of said channel support into compressive engagement with
nels being slidably moved in said upper portion and be
ing dropped into engagement with said margin in said 30 said ?anges whereby said channel support is securely
clamped to said hanger clip, and clip mounting means
lower portion, the notches of said channels being dis
rigidly secured to said hanger clip for mounting said
posed over the straight margins of said apertures in snug
hanger clip to a ?xed structure, said clip mounting means
?tting engagement therewith, said upper portion and low
comprising an elongated member having ?rst and sec
er portion of said aperture being centrally aligned where
by the lateral sides of said aperture have a shoulder de 35 ond nuts threadedly mounted thereon, said member be
ing inserted in said ?rst elongated slot, said second nut
?ning the separation of the upper portion from said lower
being inserted in said second elongated slot, and said ?rst
portion, the walls of said support members being spaced
nut being brought into lfacewise engagement with the
sufficiently to permit each notch of said U-shaped chan
bight
of said element for securely clamping said element
nels to be in engagement with a straight margin in op
posing walls whereby said U-shaped channels are main 40 to said member, said member being provided at its other
end with means for rigidly mounting said member to a
tained in parallel relationship between said walls, and
?xed structure.
means ‘for rigidly holding said walls in ?xed relationship
to each other.
6. A hanger clip for use in a light-ray ba?le which in
8. A hanger clip for use in a light-ray ba?le which
includes a U-shaped channel support mounting having
cludes a U-shaped channel support mounting having 45 a bight ‘and parallel sides, said hanger clip comprising a
U-shaped element having parallel sides connected by a
a bight and parallel sides, said hanger clip comprising a
bight, the parallel sides of said element being provided
U-shaped element having parallel sides connected by a
with lower longitudinal margins, the parallel sides of
bight, the parallel sides of said element being provided
said element being spaced to provide overlap of said chan
with lower longitudinal margins, the parallel sides of said
element being spaced to provide overlap of said channel 50 nel support and being provided with ?anges which ex
tend inwardly beneath the longitudinal margins of the
support and being provided with ?anges which extend
inwardly beneath the longitudinal margins of the paral
parallel sides of the channel support, the bight of said
lel sides of the channel support, the bight of said element
element being provided with a transverse slot which ex
being provided with a transverse slot which extends sub
tends substantially across said bight and continues sub
stantially across said bight and continues substantially 55 stantially across one of the parallel sides of said ele
across one of the parallel sides of said element, said last
ment, said last named parallel side also being provided
named parallel side also being provided with a second
with a second elongated slot which intersects said ?rst
elongated slot which intersects said ?rst slot, said ?rst
slot, said ?rst and second slots having substantial width
and second slots having substantial width and being
and being mutually perpendicular whereby to permit the
60
mutually perpendicular whereby the permit the insertion
of a threaded member containing a nut thereon, means
insertion of a threaded member containing a nut thereon,
said second slot being spaced substantially below the
adjustably mounted on the bight of said element for con
inner surface of the bight of said element thereby sepa
tacting the bight of said channel support and urging the
rating said inner surface and said second slot by a pair
ends of the parallel sides of said channel support into
compressive engagement with said ?anges whereby said 65 of opposite shoulders, means adjustably mounted on the
bight of said element for contacting the bight of said
channel support is securely clamped to said hanger clip,
channel support and urging the ends of the parallel sides
clip mounting means rigidly secured to said hanger clip
of said channel support into compressive engagement with
for mounting said hanger clip to a ?xed structure, said
said ?anges whereby said channel support is securely
clip mounting means comprising an elongated member
having a ?rst transverse ?at surface at one end and a 70 clamped to said hanger clip, and clip mounting means rig
second transverse ?at surface inwardly spaced from the
idly secured to said hanger clip for mounting said hanger
same end, said ?rst and second ?at surfaces mutually
facing each other, said second ?at surface being movable
clip to a ?xed structure, said clip mounting means compris
ing an elongated member having ?rst and second nuts
with respect to said ?rst flat surface, and adapted to move
threadedly mounted thereon, said member being inserted
toward said ?rst surface, said member and ?rst ?at sur 75
7
3,088,025
in said ?rst elongated slot, said second nut being inserted in
said second elongated slot, said ?rst nut being brought into
facewise engagement with the bight of said element for
securely clamping said element to said member so that
said channel support may not be released from said mem
ber until the spacing between said ?rst and second nuts
is su?icient to permit said second nut to pass through
said second elognated slot, said member being provided
at its other end with means for rigidly mounting said
member to a ?xed structure.
m
0
being substantially wider and deeper than said U-shaped
channels whereby said U-shaped channels may be slida
bly moved in said upper portion and dropped into en
gagement with said margin in said lower portion, the
notches of said U-shaped channels engaging with the
straight margins of the opposing walls, the walls of said
support members being su?‘iciently spaced to permit such
engagement whereby said U-shaped channels are main
tained in parallel relationship between said walls, and
10 means for rigidly holding said walls in ?xed relation
9. In a light-ray 'ba?le assembly including a plurality of
ship to each other.
U-shaped elongated channels containing a plurality of
12. In a light-ray baffle including a plurality of baf?es,
elongated slots, a rotatable ba?le comprising an elongated
means for aligning said bat?es in parallel arrays, said
?at sheet and a ?ange extending outwardly from one
means including a plurality of elongated U-shaped chan
side of said sheet along the entire width of said sheet, 15 nels from which said baf?es are supported in uniformly
and a plurality of spring-clips, said ?ange also extend
spaced relationship, said channels being provided with
ing outwardly from the other side of said sheet and con~
notches at each end, said notches extending transversely
taining a ?rst centrally located diamond-shaped aper
across the bights of said U-shaped channels and partially
ture above the center of said sheet, said diamond-shaped
up the sides thereof, and a support member comprising a
aperture having four points so located that two of the 20 pair of parallel walls, each containing a plurality of
points lie in a plane of said bathe and two lie in a plane
uniformly spaced apertures, said apertures having an up
perpendicular to said baf?e, said sheet containing a sec
ond clearance aperture ‘below said ?rst aperture, a spring
per portion and a lower portion, said lower portion be
ba?le, said spring clip engaging opposite points of the
nels, said U-shaped channels being slidably moved in
said upper portion and being dropped into engagement
ing sized slightly wider than said U-shaped channels
clip inserted through one of said elongated slots of the
and having a straight margin, said upper portion being
channel and the diamond-shaped ?rst aperture of the 25 substantially wider and deeper than said U-shaped chan
diamond-shaped aperture so that said bame can be aligned
perpendicular to or parallel to the longitudinal axis of
said channel, the second aperture being of sui?cient size
with said margin in said lower portion, said upper por
tion and lower portion of said aperture being centrally
to provide clearance for the portion of said spring-clip 30 aligned whereby the lateral sides of said aperture have
which extends through the ?rst aperture whereby to ro
a shoulder de?ning the separation of the upper portion
tatably mount said baf?e on said channel.
from said lower portion, the notches of said channels be
10. In a light-ray ba?le assembly including a plurality
ing disposed over the straight margins in said aperture
of U-shaped elongated channels containing a plurality of
in snug-?tting engagement therewith for securing said
elongated slots, a rotatable 'ba?le comprising an elon 35 channels to said support member, the walls of said sup
gated ?-at sheet, and a ?ange extending outwardly from
port member being spaced su?iciently so that each notch
one side of said sheet along the entire width of said
of said U-shaped channels is in engagement with a straight
sheet, said ?ange also extending outwardly from the other
margin in opposing walls whereby said U-shaped channels
side of said sheet and containing a ?rst centrally lo
are maintained in parallel relationship between said walls.
cated diamond-shaped aperture above the center of said 40
13. In a light-ray ba?le assembly including a plurality
sheet, said diamond-shaped aperture having four points
of U-shaped elongated channels containing a plurality
so located that two of the points lie in a plane of said
of elongated slots, a rotatable ba?cle, said baf’?e including
ba?le and two lie in a plane perpendicular to said ba?le,
an elongated ?at sheet and a ?ange extending outwardly
said sheet containing a second clearance aperture below 45 from one side of said sheet along the entire Width of
said ?rst aperture, and spring-clip means comprising a
said sheet, said ?ange also extending outwardly from the
spring wire having a large ar-cuate bend and a narrow
other side of said sheet and containing a ?rst aperture
neck inserted through one of said elongated slots of the
above the center of said sheet, said ?rst aperture contain
channel and the diamond-shaped ?rst aperture of the
ing a plurality of opposite points, said sheet containing
ba?le, said spring-clip engaging opposite points of the 50 a second aperture below said ?rst aperture, and a spring
diamond-shaped aperture so that said ba?ie can be aligned
clip for mounting said ba?les to said elongated channels,
perpendicular to or parallel to the longitudinal axis of
said spring-clip comprising a spring wire having a large
said channel, the second aperture being of sul?cient size
arcuate bend, a narrow neck, and a pair of ends pro~
for providing clearance for the portion of said spring
55 trending outwardly from said narrow neck, said spring
clip which extends through the ?rst aperture, said dia
mond-shaped aperture having a pair of diagonally op
clip being inserted through one of said elongated slots
and said ?rst aperture and engaging said points in said
posite corners to enable said sheet to be selectably po
?rst aperture to enable said sheet to be selectably ro
sitioned either in alignment with or perpendicular to said
tated to any number of predetermined positions, said
channel.
60 baffles being locked therein by engagement between said
11. In a light-ray ba?le including a plurality of ba?les,
means ‘for aligning said ba?les in parallel arrays, said
means including a plurality of elongated U-shaped chan
nels from which said baf?es are supported in uniformly
spring-clip and a pair of opposite points in said ?rst
aperture, said second aperture being of su?icient size for
providing clearance for the portion of said spring-clip
which extends through said ?rst aperture.
spaced relationship, said channels being provided with 65
14. In a light-ray baf?e assembly including a plurality
notches at each end, said notches extending transversely
of U-shaped elongated channels containing a plurality
across the Ibights of said U-shaped channels and partially
of elongated slots, a rotatable ba?le, said ba?le including
up the sides thereof, a support member comprising a
an elognated flat sheet and a ?ange extending outwardly
pair of parallel walls, each containing a plurality of
vfrom
one side of said sheet along the entire width of
uniformly spaced apertures, said apertures having an up 70 said sheet, said ?ange also extending outwardly from the
per portion and a lower portion, said lower portion be
other side of said sheet and containing a ?rst square
ing sized slightly wider than said U-shaped channels
shaped aperture above the center of said sheet, said sheet
and having a straight margin over which the notches in
containing a second aperture below said ?rst aperture,
said U-shaped channels are disposed, said upper portion 75 and a spring-clip for mounting said baf?es to said elon
3,088,025
9
gated channels, said spring-clip comprising a spring wire
having a large arcuate bend, a narrow neck, and a pair
of ends protruding outwardly from ‘said narrow neck,
7 said spring-clip being inserted through one of said elon
gated slots and said ?rst aperture and engaging a pair
of diagonally opposite points in said ?rst square-shaped
aperture to enable said sheet to be selectably positioned
either in alignment with or perpendicular to said chan
nel, said second aperture in said sheet being of suf?cient
size for providing a clearance for the portion of said 10
spring-clip which extends through said ?rst aperture as
said sheet is pivoted.
16
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,964,554
2,152,584
2,562,406
2,698,071
2,73 5,522
2,736,5 28
2,'870,8 83
2,873,828
2,892,077
Ball _________________ __ June 26, 1934
Cranshaw ____________ __ Mar. 28, 1939
Barker _______________ __ July 31, 19511
Lee _________________ __ Dec. 28, 1954
Lee __________________ -_ Feb. 2,
Le Brock _____________ __ Feb. 28,
Deaton ______________ __ Jan. 27,
Zitomer ______________ __ Feb. 17,
Rosenstein ___________ __ June 23,
1956
1956
1959
1959
1959
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