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Патент USA US3033107

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May 8, 1962
1.. R. PHILLIPS
3,033,097
AIR DISTRIBUTION CONTROL OUTLET
Filed Sept. 8, 1959
4 Sheets-Sheet 1
F1G.l.
"lllllllnv
.HHHIIII"
INVENTOR
/
FIG. 2.
l£EONARD R. PHLLL 1P5
May 8, 1962
L. R. PHILLIPS
3,033,097
AIR DISTRIBUTION CONTROL OUTLET
Filed Sept. 8, 1959
4 Sheets-Sheet 2
FIG. 3.
May 8, 1962
1.. R. PHILLIPS
3,033,097
AIR DISTRIBUTION CONTROL OUTLET
Filed Sept. 8, 1959
FIG. 5 .
4 Sheets-Sheet 3
May 8, 1962
L. R. PHILLIPS
3,033,097
AIR DISTRIBUTION CONTROL OUTLET
Filed Sept. 8, 1959
4 Sheets-Sheet 4
CM
INVENTOR
LEONARD R . PHLLLIPS
3,033,097
Patented May 8, 1962
to use in any given installation will depend upon the par
3,033,097
ticular air distribution requirements for that speci?c 10-.
AIR DISTRIBUTION CONTROL OUTLET
Leonard R. Phillips, West Hartford, Conn, assignor to
cation, as will be further described hereinafter.
As will be most clearly seen in FIGURE 1, the main
body of the diffusing air outlet consists of a casing gen
erally designated as 1, and formed in the shape of a
Anemostat Corporation of America, New York, N. .,
a corporation of Delaware
Filed Sept. 8, 1959, Ser. No. 838,550
7 Claims. (Cl. 98-40)
fruscated rectangular pyramid having sloping side walls
2. The top portion of the casing 1 terminates in an up
This invention relates generally to air distribution out
turned collar 3‘, which is suitably connected, as by spot
lets and more particularly to an air outlet of the diffuser 10 welding, to a neck extension 4 leading to a branch duct
type having provision for controlling the pattern of the
discharging air ?ow.
5 of the primary supply air system.
The lower portions of the inclined walls 2 are pre
It is a general object of the present invention to pro
formed to provide a horizontal recessed bearing surface
vide an air outlet particularly adapted for installation in
6 surrounded by a curved peripheral ?ange 7.
ceilings of air-conditioned or heated enclosures.
FIGURE 1 illustrates a suggested form of installation
15
Another more speci?c object of this invention is to
wherein the casing 1 is supported by and attached to the
provide an air outlet having novel adjustable means for
branch air supply duct 5 by means of a neck extension
selectively directing the ?ow of the primary supply air
4 of the necessary length to properly position the outlet
in one or more directions, and for controlling or regu
within the opening 9 in the ceiling lit of the enclosure.
lating the volume of diffused air discharged by the outlet 20 The end portion 8 of the curved peripheral ?ange 7 abuts
in any or all directions.
securely against the exposed under-surface of the ceiling
A further object of this invention is to provide im
proved supporting means for the adjustable de?ector
members enabling rapid and e?icient cleaning of the en
ltl to provide an attractive and airtight seal of the outlet
within the opening 9.
The invention is not limited to the speci?c form of
tire outlet assembly including the connecting supply 25 mounting ?ange 7 illustrated in the several ?gures of
neck, by unskilled labor, without the possibility of the
the drawings. The peripheral portion 7 of thecasing 1
adjustment of the de?ectors being disturbed from the de
may be constructed in any other suitable shape in order
sired setting.
to provide other forms of mounting of the outlets such
Still another object is to provide an air outlet accord
as for ?ush mounting within an acoustical tile ceiling.
A
ing to the invention and having de?ector members of im 30 Novel means are provided within the casing 1 to di~
proved design for controlling the pattern of discharging
rect the incoming supply air into selected discharge pat
air throughout the entire 360° perimeter of the outlet.
terns.
A further object of this invention is to provide novel
Disposed within the con?nes of the casing 1 are four
pivotal means for mounting the de?ectors, permitting
their adjustment, and retaining them in the desired angu
lar setting.
These and other objects of the invention will be ap
de?ector plates d1, d2, d3, and d4, of suitable ?at rigid
35 material such as sheet metal.
These de?ectors are sus
pended from a pair of crossed support straps designated
generally as 11 and 12. The straps comprise horizontal
parent from the following description, reference being
sections 13 which meet at the center vertical axis of the
bad to the accompanying drawings wherein like reference
outlet and extend substantially across the width of the
characters denote corresponding parts throughout the 40 neck opening 14 of the casing 1, and downwardly pro
several views.
jecting foot portions 15 disposed parallel to the plane of
In the drawings:
the side walls 2. The supports 11 and 12 are attached to
FIGURE 1 is a vertical sectional view showing the air
the casing by means of readily removable fasteners, such
control outlet, according to the invention, installed with
as slotted self-tapping screws 16 which pass through the
in an opening in an enclosure, the view being taken along
toot
portions 15 into the side walls 2, to rigidly secure
45
the line 1—1 of FIGURE 2.
FIGURE 2 is a bottom plan view of the invention
the support strap assembly within the casing.
U-shaped hangers 17 depend from each of the radially
with the perforated diffuser plate partly broken away to
extending sections 13 of the support straps 11 and 12.
more clearly illustrate the arrangement of the de?ectors.
FiGURE 3 is a bottom perspective view, partly in sec
The upper ends 18 of the hangers 17 are connected to
the support straps 1-1 and 12 by suitable means such as
50
tion, showing the underside of the de?ector supports as
by welding. The lower hinge bars 19 of the hangers 17
well as the pivotal attachment means therefor.
are suspended in a rigid horizontal position by rods 20
FIGURE 4 is a top perspective view looking down on
of the hangers 17. The purpose of the bars 19 is to pro
the construction illustrated in FIGURE 3 and shows the
vide a ?xed point about which the de?ector plates may
de?ectors arranged to deliver a particular air diffusion
be pivoted, as will be described immediately hereinafter.
pattern.
55
FIGURE 3 most clearly shows the means for adjust
FIGURES 5 and 6 are partial top perspective views
ably supporting the de?ectors. Each of the de?ectors
with portions of the neck and casing broken away to
d1, d2, d3, and d4 has a top air directing surface 21 and
illustrate various adjustments of the de?ectors to pro
a bottom surface 22. Each de?ector is pivotally attached
vide different air di?usion patterns.
to the hinge bar 19 of one of the U-shaped hangers 17
FIGURE 7 is a bottom plan view of the invention il 60 by means of a bearing clip 23 which urges the bar 19
lustrating a modi?ed arrangement of de?ectors for a rec
against the top surface 21 of the de?ector plate. The
tangular form of the invention.
clips 23 are of such design as to cause a relatively tight
Similar reference characters designate corresponding
frictional engagement between the de?ectors and hinge
parts throughout the several ?gures of the drawings.
bars 19, so that a deliberate eifort is required to manu
65
ally change the de?ectors from one posit-ion to another.
Referring to the several ?gures of the drawings it will
In other words, the bearing arrangement is such that the
be noted that even though most of the views disclose a
adjustment of the de?ectors will not be changed by a sud
square shaped outlet, ‘it will be understood that the in
den discharge of high pressure high Velocity air through
vention is not limited to this design. As shown in FIG
the outlet.
.
URE 7, the invention may be incorporated in a rectangu
In the square form of outlet, all the de?ectors d1, d2,
lar shaped outlet having a length and width of any suit 70
d3, and d4 are triangular in shape and as will be seen most
able proportions. The selection of the shape of outlet
3,033,097
3
clearly in FIGURE 2, each de?ector controls a 90° area,
or one-fourth of the total discharge area of the outlet. It
will therefore be apparent that each de?ector is a right
isosceles triangle having a right angle vertex 24 opposite
its bottom edge 25.
The de?ectors are large enough so that the bottom
edges 25 will engage the side walls 2 of the casing when
the de?ectors are in the closed position. FIGURE 6
illustrates de?ectors d2 and d4 in the closed position,
whereby the bottom edges 25 form a seal with the adja
cent side walls 2.
A nominal amount of air space 26 will appear between
with only enough effort to overcome the resiliency of the
prongs 31 to cause the shoulders 33 to become disengaged
from the openings 30. When this is accomplished, the
diffuser will automatically drop a short distance until the
angle portions 34 of the catches 29 abut the upper portion
of the bearing surface 6. Thus there is no possibility of
the diffuser accidentally falling on the service man or
dropping to the ?oor and being damaged.
To completely remove the di?user, the hand is inserted
IO between the suspended diffuser and the casing and the
two prongs 31 of each catch are compressed towards one
another to allow the angle portions 34 to be pulled
the deflector plates (FIGURE 2) when the de?ectors are
in the fully open or fully closed positions. This permits
through the respective openings 30.
the vertices of the plates to clear one another when two
or more plates are adjusted in a horizontal position where
‘in the vertices most nearly pass through the center vertical
axis of the outlet.
FIGURES l and 2 show the outlet with all four de
will now appear somewhat like the view shown in FIG
URE 2. It will be seen that regardless of the adjusted
?ector plates d1, d2, d3, and d4 in the open position. In
this position all of the incoming supply air passing through
the neck extension enters the casing and impinges upon
the top surfaces 21 of the four de?ectors. The top sur
face 21 of each de?ector, together with the oppositely
disposed side wall 2, forms a downwardly inclined pas
sageway 27 through which all of the air striking each
With the diffuser removed, the interior of the outlet
position of the de?ectors, the self-tapping fasteners 16
retaining the support straps 11 and 12 will be readily
accessible. Removal of these fasteners will enable one
to quickly remove the entire de?ector assembly from
the unit. In this way it will be a relatively easy and
quick matter to clean the casing and neck extension of
the outlet as well as to separately clean the de?ector as
sembly without altering the adjustment of the de?ector
' blades.
Five basic diffusion patterns may be obtained from the
square form of outlet shown in FIGURES 1-6. As pre
de?ector is directed.
viousl‘,r described, FIGURE 1 discloses a four-way dis
It will therefore be apparent that when all of the de
charge pattern wherein the supply air is equally diffused
?ectors are open, the total volume of supply air entering
the casing will be equally divided between the four pas 30 throughout a 360° area of the outlet. To obtain this
pattern, all four de?ectors are pivoted with their vertices
sageways 27 and therefore equal volumes of air will be
concurrently discharged through all four sides of the out
let to provide a 360° distribution of air.
24 at the uppermost limit, thereby placing the lower
edges 25 adjacent the bottom opening of the casing.
A three-way discharge pattern may be obtained by clos
ing one de?ector and leaving the other three open such
as shown in FIGURE 5, wherein de?ector d1 is closed
and de?ectors d2, £13, and d4 are open. The ‘bottom edge
25 of each de?ector is provided with a notch 25a adapted
Diffusion of the discharging supply air is achieved
through use of a perforated diffuser plate 28, most clear
ly shown in FIGURE 1. The diffuser 28 extends to
cover the entire lower opening of the casing 1 and is
provided with suitable quick release retaining means such
to surround the foot portion 15 of the supports 11 and
as spring catches 29 located on opposite sides of the
diffuser. The edges of the diffuser ?t freely within the 40 12 when the de?ector is fully closed. In this manner the
bottom edge 25 will engage the adjacent side wall 2 of the
recess formed by the ?ange 7 and recessed surface 6 of
casing and form a seal to prevent the passage of supply
the casing.
air over the closed de?ector. Thus it will be seen that
In order to retain the diffuser 28 in the normal operat
the air impinging upon the top surface ‘21 of de?ectors
ing position shown in FIGURE 1, the two opposite sides
(P, d3 and d4 will be directed through passageways 27
of the casing are provided with openings 3% in the bear
to the diffuser plate 28, whereupon it will be diffused
ing surface 6 to receive the prongs 31 of the spring
through three sides of the outlet into the enclosure. The
catches 2?. As most clearly shown in FIGURE 5, each
air impinging upon the surface 21 of the closed de?ector
catch 29 consists of a pair of upstanding prongs 31 joined
d1 will, for the most part, be directed back up into the
to a base member 32 disposed on the underside of the
upper part of the casing due to the closing off of the
diffuser. An off-set portion adjacent the base member 32
respective passageway 27.
provides an outwardly projecting shoulder 33 on the
Attached to the equilateral sides of each de?ector are
lower part ‘of each prong 31 so that when the diffuser is
a pair of upturned ?anges 35 which join at the vertex
placed over the opening of the outlet and the prongs are
24 to form a pocket. It will be seen that when a de?ec
inserted into the openings 30, the diffuser is pushed up
tor is in the closed position, the air that does reach the
wardly until it abuts the recessed surface 6 at which
vertex area of the closed de?ector will be entrapped
time the shoulders 33 on the resilient spring prongs 31
within this pocket and act as a cushion to support the
will spring outwardly and away from each other to en
air in this area so that no air will be discharged straight
gage the sides of the openings 30 to retain the diffuser
in place.
Means must be provided in all air distribution outlets
to allow periodic servicing of the unit. Such servicing
includes, for all outlets, regular removal of the collection
of dust that accumulates upon all surfaces which come
downwardly through the diffuser 28.
The diffusion pattern just described wherein three de
?ectors are open and one is closed provides a 270° dis
charge of diffused air from the outlet. This form of ad
justment may be particularly desirable when an outlet
in contact with the supply air. In most outlets this clean
is located near one wall of an enclosure.
ing can ‘be accomplished by merely wiping the surfaces
stallation the de?ector immediately opposite the near
wall would be closed to permit the outlet to diffuse all
of the supply air through the remaining three open de?ec
within the unit with a cloth or suitable brushes. How
ever, in the present invention, means must be provided
In such an in
tors to achieve the most e?icient air distribution to the
for safely removing the diffuser and for protecting the
enclosure.
adjustment of the de?ector plates when it is desired to
In an installation where the outlet is located near the
clean the inside of the casing.
70
corner of a ceiling the de?ectors may be adjusted as
Accordingly, each prong 31 of the spring catches 29
shown in FIGURE 4 to achieve the most efficient air dis
is provided with an outwardly projecting angle portion 34
tribution. The de?ectors d3, d4 adjacent the nearest walls
at its upper end so that when removing the diffuser to
are closed so that the full discharge of the supply air will
clean the unit or to change the adjustment of the de?ec
tors, it is necessary to merely pull down on the diffuser 75 be through the open de?ectors d1, d2.
3,033,097
5
6
In an installation wherein the outlet is located in a
long, narrow enclosure the de?ectors may be arranged as
in FIGURE 6 where de?ectors d1, d3 are opened and
d2, d4 are closed. In such a situation the opposed open
This adjustment blocks the passage of any of the supply
air from the short sides of the outlet, while the upturned
?anges 3‘5 prevent the passage of air over the vertex areas
24 of the de?ectors.
The de?ectors R2, R2 are shown in the open position
whereby the top edges 4t) are adjacent ‘the support mem
ber 33 and the bottom edges 41 are spaced apart ‘from the
walls 37 to form passageways for directiong the supply
air against the two walls nearest the outlet.
air out of the long sides of the outlet.
Considering the preceding example of a long narrow
In order to prevent the passage of air over the equilateral
enclosure, it will be observed that if the outlet were 10
side edges 42 of the long de?ectors R2, R2 when they are
located near one end of the ceiling, then distribution of
in the closed position, right angle ?anges ‘Ki-3 are provided
the supply air to the far end of the enclosure would be
on the upper surface of de?ectors R2, R2. These ?anges
readily achieved by closing all the de?ectors except the
43 extend from the top edge 40 for a substantial distance
one discharging towards the far end of the enclosure.
A four-way diffusion pattern wherein all four of the 15 along the side edges 42 to serve the ‘same function as the
?anges 35 on the triangular de?ectors. Flange members
de?ectors are open would be employed whenever the out
are not required along the top edges 40‘, for when the
let is located within a large enclosure or centrally located
‘long de?ectors R2, R2 are in the closed position the air
with respect to other outlets or the walls of an enclosure.
striking the upper surface of these de?ectors is directed
The shape of an enclosure and the respective location
to the opposite side of the unit due to the relatively greater
of an outlet do not always dictate which will be the
length of the long de?ectors.
most desirable diffusion pattern. The adjustment of the
de?ectors would discharge the supply air into the longer
dimension of the enclosure while the closed de?ectors
would prevent the wasteful and undesirable discharge of
Any suitable type of damper means may be used in con
de?ectors will often be determined by the intended use
nection with the present invention to regulate the total
of the enclosure. If the enclosure is to be occuplied by
overall volume of air to be supplied to the outlet. FIG
personnel in one particular area it may be desirable to
supply a greater amount of air towards that area. Also, 25 URE 1 indicates, as an example, a damper ‘44 disposed
within the lower portion of the neck extension 4.
if sensitive equipment, for example, is being stored in
As in the square form of the invention, the de?ectors
one area of an enclosure, it is a simple matter to re
R1, R2 may be adjusted to deliver a. plurality of diffusion
adjust the de?ectors to discharge more or less air into that
patterns according to the air distribution requirements of
particular area, according to the storage requirements of
the particular enclosure involved. FIGURE 7 illustrates
the equipment.
only one of the possible adjustments wherein de?ectors
The present invention may be adapted in a rectangular
R1, R1 are in the closed position with the bottom edges 25
shaped outlet as shown in FIGURE 7 when, for example,
in sealing engagement with the upper portion of the short
it is desired to distribute larger volumes of air from a
single outlet.
side walls 36 to block the discharge of air from the
The construction of the casing, neck extension, and’ 35 short sides of the outlet, while de?ectors R2, R2 are fully
perforated di?user plate is similar to the square form
of outlet except that these components are extended
along one dimension to form a rectangular unit having as
long a neck opening and diffuser plate as is required.
The casing comprises a pair of oppositely disposed 40
short side walls 36, 36 and a pairof long side walls 37, 37.
A pair of de?ectors R1, R1 cooperate with the short walls
36 respectively, to control the distribution of supply air
opened with the bottom edges 41 spaced apart from the
long side walls 37 to permit diffusion of the entire supply
air from the longer sides of the outlet.
I claim:
1. A directional control for ‘an air distribution outlet,
comprising, a casing having a plurality of slanting side
walls arranged to provide a substantially rectangular
opening, a plurality of separate de?ectors, movable in
from the short sides of the‘ outlet. These de?ectors are
dependently of each other, at least a pair of which are of
similar to de?ectors d1, d2, d3, d4 in that each is shaped like 45 substantially ?at triangular formation with their apical
an isosceles triangle and has a base 25 adapted to seal
portions inclined toward the axis of the opening, a sepa
off the upper portion of the adjacent short side wall 36.
rate pivot on each de?ector located substantially in the
A pair of de?ectors R2, R2 shaped like isosceles trape
medial portion of the top surface thereof, means carried
zoids are disposed in cooperating relationship with the
by the casing for supporting said pivot means to permit
long side walls 37, 37 to regulate the discharge of the
adjustment of said de?ectors from a closed to an open
supply air from the long sides of the outlet.
position whereby said de?ectors are disposed substantially
The de?ectors R1, R2 are suspended within the con
parallel to their respective side walls and have their apical
?nes of the casing 1a and adapted for pivotal adjust
portions disposed at a common point, ‘and air diverting
ment by means of a support and hanger arrangement
means on the top surface of said de?ectors at the apical
similar to that employed in the previously described square 55 portions thereof to prevent the passage of air under the
form of outlet.
apical portions when the de?ectors are tilted downwardly
A longitudinal support strap 38 extends across the
in a closed position, whereby each of the separate de?ec
longer dimension of the neck opening of the casing and
tors maybe adjusted to either an open or closed position
is provided with a pair of downwardly projecting foot
independently of the position of each of the other of said
portions 15 which are secured to the short side walls 36, 60 de?ectors to selectively provide numerous air distribution
36 respectively. The re?ectors R1, R1 are attached to
patterns through said outlet.
the support strap 38 by means of U-shaped hangers 17
2. A directional control for an air distribution outlet
and bearing clips 23 described beforehand. Similar sus
according to claim 1, wherein said side walls comprise
pension means are provided for the trapezoidal de?ectors
downwardly and outwardly inclined surfaces, each of said
R2, R2. Due to the relatively longer length of these
de?ectors mounted within the con?nes of said casing and
de?ectors, it is desirable to use at least two cross support
straps 39 and thereby suspend each de?ector R2 with two
U~shaped hangers 17.
in opposed relationship to one of said walls.
3. A directional control for an air distribution outlet
according to claim 1, wherein said air diverting means on
'It will be understood that the function and adjustment
said de?ectors comprises upturned ?anges adjacent the
of the rectangular outlet is similar to that of the square 70 apical portion of said de?ectors.
unit, as described previously.
4. A directional control for an air distribution outlet,
The outlet illustrated in FIGURE 7 shows both of the
comprising, a casing having a plurality ‘of slanting side
de?ectors R1, R1 in the closed position, that is, with the
walls arranged to provide a substantially square opening,
bottom edges 25 sealed ‘against the upper portion of the
and opposite pairs of separate and ?at triangular de?ectors
respective side walls 36, 36 adjacent the neck opening. 75 covering the areas of the opening and having their apical
3,9 3,0
7
‘8
' 7
portions disposed inclined toward the axis of the opening,
separate pivot means located on the medial portion of
each de?ector to permit independent movement of each
of said de?ectors, means carried by the casing ‘for sup
porting said pivot means to permit adjustment of said de
to either an openior closed position independently of the
position of each of the other of said de?ectors to selectively
provide numerous ai-r distribution patterns through said
outlet.
7. In an air distribution control apparatus, a rectangular
?ectors from a closed to an open position whereby said
casing of the shape of a truncated pyramid having slanting
de?ectors are disposed substantially parallel to their
respective side walls and have their apical portions dis
side walls and upper and lower openings, der ectors dis
when the de?ectors are tilted downwardly in a closed posi
apical portions when the de?ectors are tilted downwardly
in a closed position, whereby each of the separate de
posed between said opening and comprising, top air direct
ing surfaces and bottom sealing edges, and air diverting
posed at a common point, and air diverting means on the
top surface of said de?ectors at the apical portions there 10 means on the top surface of said de?ectors at the apical
portions thereof to prevent the pasage of ‘air under the
of to prevent the passage of air under the apical portions
tion, whereby each of the separate de?ectors may be ad
justed to either an open or closed position independently
of the position of each of the other of said de?ectors to
selectively provide numerous air distribution patterns
through said outlet.
?ectors may be adjusted to either an open or closed posi
tion independently of the position of each of the other
of said de?ectors to selectively provide numerous air dis
tribution patterns through said outlet, support means
within said upper opening, hangers connected at one end
5. A directional control for an air distribution outlet
to said support means and pivotally connected at the other
according to claim 5, wherein said supporting means are
straps extending across the upper portion of said square 20 end to said de?ectors, all of said de?ectors cooperating to
form an air directing unit encompassing a lateral area at
opening, said straps provided with means for attachment
least as great as the area of said upper opening to provide
to said casing such that the straps, pivot means, and de
directional control of all air projecting downwardly
?ectors may be removed from said casing as a single
through said upper opening, each of said de?ectors when
integral unit.
6, A directional control for an air distribution outlet, ' in an open position having its top air directiong surface
substantially parallel to and in spaced apart relationship
comprising, a casing having a plurality of slanting side
with its respective side Wall to form a downwardly slop
walls arranged to provide an elongated rectangular open
ing air passageway and when in a closed position having
ing, a pair of separate and ?at triangular de?ectors located
its bottom edge in sealing engagement with the respective
at opposite ends of said opening, a pair of opposed trape
side wall, and diffuser means mounted within the lower
zoidal de?ectors located between said triangular de?ectors,
opening.
separate pivot means attached to the medial portions of
each of said de?ectors to permit independent movement
References Cited in the ?le of this patent
of each of said de?ector-s, means carried by the casing for
supporting said pivot means to permit adjustment of said
UNITED STATES PATENTS
de?ectors from a closed to an open position whereby said
de?ectors are disposed substantially parallel to their re
spective side walls and have their apical portions disposed
at a common point, and air diverting means on the top
surface of said de?ectors at the apical portions thereof to
1,101,642
2,607,282
2,821,898
2,822,741
prevent the passage of air under the apical portions when 40
the de?ectors are tilted downwardly in a closed position,
whereby each of the separate de?ectors may vbe ‘adjusted
Lenling ______________ __ June 30,
Gilbert ______________ __ Aug. 19,
Kennedy ______________ __ Feb. 4,
Kennedy ____________ __ Feb. 11,
1914
1952
1958
1958
FOREIGN PATENTS
726,483
Germany _____ _; _____ __ Oct. 14, 1942
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