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Патент USA US3075828

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Jan. 29, 1963
3,075,818
L. J. F AY
EQUIPMENT ENCLOSURE STRUCTURE
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BY
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ATTORNEYS
Jan. 29, 1963
|_. J. FAY
EQUIPMENT ENcLosURE STRUCTURE
Filed Aug. 17, 1960
3,075,818
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5 Sheets-Sheet 2
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INVENTOR.
A TTORNE YS
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Jan. 29, 1963
L. J. FAY
3,075,818
EQUIPMENT ENCLOSURE STRUCTURE
Filed Aug. 17. 1960
3 Sheets-Sheet 5
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3,675,8l8
EQUIPMENT ENÉILGSURE STRUCTURE
Lawrence I. Fay, Elgin, Iii., assigner to Equipto ElcoI
nonies Sorporation, Nap-ervilie, Ill., a corporation of
Illinois
Filed Aug. 17, 195o, Ser. No. 50,226
17 Claims. (Cl. 312-257)
_
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Patented jan. 29, l 963
E
inner pairs of :angular relatively narrow stepped tlanges
generally at right angles to each other with one of said
pairs of angular relatively stepped flanges being connected
to the side frame portions, the outer pairs of the narrow
stepped ñanges on the upright corner frame members and
transverse members defining a seat for edges of the cabi
net panel, the inner pairs of angular relatively narrow
stepped flanges on said upright and transverse frame mem
bers at the enclosure frame corners of the frame being
The present invention relates Igenerally to a new and
improved enclosure or cabinet and more particularly to 10 iitted together and comprising means by which the up~
an enclosure or cabinet which is particularly adapted for
right and transverse frame members are secured together
receiving various types and sizes of equipment, such as
so as to be substantially free of torsional twisting and
medical, computing, transmission, supervisory data, radio,
movement out of norm-al planes.
l
television or other electrical or control equipment.
Other »objects and features of the present invention will
In the past a number of different types of enclosures 15 more fully become apparent in view of the following de
have been developed for the receipt of various types of
tailed description taken in conjunction with the ‘accom
equipment. These former types of enclosures have not
panying drawings illustrating therein several embodi
'been entirely satisfactory for a number of reasons. One
ment-s, and in which:
important reason why former enclosures have not lbeen
-FIGURE l is a perspective view showing a basic unit
entirely satisfactory is that the frame structure when sub 20 or enclosure incorporating the features of the present in
jected to the load of the equipment has not been a'ble
vention;
to properly support the equipment and resist torsional
>FIGURE 2 is «an enlarged «fragmentary cross-sectional
twisting and movement.
View taken along the line lI-II looking in the direction
In view of the foregoing, an important object of the
indicated by the arrows, as seen in FIGURE 1;
present invention is to provide la new and improved en 25
FIGURE 3 is »an enlarged fragmentary cross-sectional
closure frame which is better able to resist torsional
view taken on the line III-III looking in the direction in
twisting and movement when the equipment is mounted in
dicated Iby the arrows, as seen in FIGURE 1;
the enclosure.
FIGURE 4 is an enlarged fragmentary cross-sectional
Another reason why earlier types of enclosures have
view taken on »the line IV-IV looking in the direction in
not been entirely satisfactory is that the components of 30 dicated by the arrows, as seen in FIGURE l;
the enclosure have not been manufactured and constructed
FIGURE 5 is an enlarged fragmentary exploded View
in the simplest possible manner.
of one of the corners of the enclosure;
Accordingly, another important object of the present in
FIGURE 6 is an enlarged fragmentary exploded view
vention, is to provide an enclosure comprised of a mini
of ,one of the side walls of the enclosure; and
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_mum of simple prefabricated parts that can be manu 35
FIGURE 7 is a fragmentary cross-sectional View of ‘a
factured at the lowest possible cost Iand which may be as
modiñed type of enclosure.
sembled together with a «minimum of effort.
Referring now more specifically to the drawings Where
Still another important object of the present invention
in like parts are designated by the same numerals
is to provide a new type of enclosure comprised of a mini
throughout the various figures, an enclosure or cabinet 10
40 embodying the principles of this invention is most clearly
mum number of standardized parts.
Still another object of the present invention is to prov-ide
shown in FIGURE l. The enclosure or cabinet 10 in
a new type of enclosure which is strong and lends itself
cludes a base assembly 11 and an enclos-ure frame 12.
fo-r use in modular enclosure systems.
The frame l2 is shown provided with side panels 13, a
A further object of the present invention is to provide
side or door panel le, and top and bottom panels 1S
an enclosure having simple lines and an attractive appear 45 which all may be applied to the frame structure in any
ance.
suitable manner. The base assembly l1 is illustrated as
In the past, it has not been readily possible to convert
being bolted to the bottom panel l5, as indicated at 1l’ in
conventional types of cabinets so that they could be ren
FIGURE 2. Similar suitable fasteners may be used t0
dered moisture proof, dust pro-of, and the like. In view
secure the other panels in assembly with the frame 12. If
of the improved construction of the instant enclosure, it 50 desired, the side panels may be secured at the bottom
may be very readily rendered moisture proof and dust
ends to the frame by means of pins and sockets. Where
proof through the installation of suitable gaskets or seal
this system is used, latches may be used at the top of
ing means. Accordingly, a further object of the present
the panels to secure the ends of the panels with the frame
invention is to provide a new type of enclosure which may
I2. In this way, the side panels may be readily removed
55 and a door panel may be substituted in place of a side
be readily rendered dust and moisture proof, if desired.
Yet another object of the present invention is to pro
panel, if desired.
vide a novel enclosure having a number of basic elements
When the aforesaid panels are in assembly with »the
which may be economically mass produced and which
frame, it will be noted that they are preferably substan
'may be easily and rapidly lassembled in many different
tially iiush with the frame so that the lines of the enclosure
combinations and arrangements so as >to accommodate 60 may be maintained simple and so that a series of the en
various types of equipment.
In accordance with the general features of the present
invention, there is provided an enclosure for equipment
closures liâ may be disposed in side by side relationship
»and in engagement with one another. If desired, lthe panel
may be offset slightly outside of the outer planes of the
to be mounted therein, the enclosure having an enclosure
frame 12,.
frame including upright corner fram-e members spaced 65
The enclosure frame 12 includes identical upright cor
apart and disposed generally in parallel planes, the up
ner frame members 16 Which are spaced transversely apart
right corner frame members exten-ding about the sides, top
and disposed generally in parallel planes. The upright
and bottom of the enclosure, and transverse frame mem
corner frame members extend about the sides, top and
bers disposed lbetween the upright corner frame members
bottom of the enclosure frame l2. The enclosure frame
in assembly therewith. The frame members are hollow 70 l?. further includes transverse frame members 17 which
and each have diverging side frame portions open at an
are disposed between the upright corner frame mem
inner corner which corner is further deñned by -outer and
bers 16, with the frame members i6 and 17 being
3,075,818
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secured together in an improved way in accordance
with certain features of the present invention. Each
of the frame members 16 comprises a hollow chan
nel and is a one-piece strip which may be made Vfrom
foregoing, it will now be appreciated that the metal frame
12 is rigidiñed since it has a series of lap-type joints dis
posed at the junctures of the upright and transverse metal
any suitable material suchgas steel, aluminum and the
like by rolling the material or extrudingithe material.
metal frame 12. The lap joints include double sets of
Opposite ends of the strip may be secured in any suitable
manner such as by welding them together at the bottom,
parallel planes on the transverse members 17 for attach
ment with spaced offset flanges 24 and 25 on the upright
member 16.
The upright frames 12 each have notched or split areas
40 and 41 so that each of the frames 12Ymay be formed
from a single continuous piece of material. The notched
frame members 16 and 17 at the eight corners of the
the Welding flanges 33, 34, 37, and 38 disposed in spaced
center or at one of the corners. Where the strip is
welded at one of theV corners, it will be appreciated the
other three corners of the strip are formed by notching
the upright corner frame member 16v so that it may be
folded and secured in rectangular form. Asillustrated,
or slit area 4i) cuts through the side flange 18 and the
flanges 20 and 21, while the notched or slit area 41 cuts
in FIGURE l, the ends of the tubular member are Welded
at 16' so the tubular -frame member V16 may »be more 15 through the flanges 24, 2S, and 35, leaving one of these
readily formed into rectangular shapes.l
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sides or side flanges 18 without ‘a slit. This unslit side 18
provides the common link joining the4 vertical andhori
Theframe members Y16 _and 17 include_divergingside
upright frame portions or sides 18 and diverging' side
zontal components of the< frame 12 in unitary relation.
The transverse members are each also slit at opposite ends
transverse frame portions or sides 19. The upright and
transverse frame members orsides `16 and` 17 further 20 thereof to permit the welding flanges 37 and 3S to be
include outer pairs of angular relatively narrow stepped
turned in angular relation to the sides 19, 19.
flanges 20, and 21 on .the upright’frame portions and
A series of transverse strutsor hanger members 43
are secured at opposite ends to the upright frame flanges
outer pairs ofangular relatively .narrow stepped v`flanges
21Üby means of a series of strut fasteners 44. The upright
22, 23 on the transverse frame portions. The'upright
andtransverse frame, members 16„and 17 still further in 25 flanges 21 eachv have a series of vertically spaced holes
21a and the struts also have verticalïyspaced holes for
clude inner pairs of angular relativelynar'row‘stepped
flanges 2.4,A 25 >on lthe upright frame portions and` inner
alignment with the upright holes'Zla. Any suitable fas
pairs of angular relatively narrow stepped rflanges 26, 27
.tener may >bensed for securing these. struts 43with the
upright flanges 21 and nut and bolt assemblies are illus
on thev transverse frame portions. -The terms inner and
outer, as referredto abovel_„refer to the relative" position 30 trated as the means for attaining this end. These struts
43 may be moved to different vertical positions with re
of the previously described flanges with respect to the up#
right> plane of .the member 16 and the'transjverse plane of
spect to a flange 21 since arnumber o_f holes are provided
the transverse framemember _17.
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on the flange 21 to permit the struts to be attached to
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the flange 21 at various points along` the vertical extent
The, upright frame member ,has a welding flange 28
disposed at right anglesV to the upright flange 25 and it 35
thereof.
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A series o_f longitudinal or upright angles 45 having
will further be noted that the flanges'- 18, 24` -and25
angle flanges 46 and 47 are provided for assembly with
the struts 43. Each of Vthe angles has a series of vertically
provide a series of steps on theorie side of the upright
while the flanges 18, 20, and 21 form a series on' another
spaced >angle holes 45a on the angle ñange 46 and ase
The transverse frame member 17 corresponds gener~ 40 riesof vertically .spaced angle holes 46b on' the angle
flange 47.y A series of angle fasteners 48 are provided
ally in cross-section to the upright framek member 16
for securing the angles in assembly with the struts. To
and in this respect is provided with a transverse outer
attain’ this end, the angle fasteners extend through the
flange 29 connected with flange 27, and a transverse outer
strut holes 43b and the angle holes 45a.
flange 30 connected with the flange 23. The stepped
flanges 26, 27, and 29‘and the stepped flanges 22, 23, and 45 An Yequipment panel 49 is provided andk has a series
sideoftheupright.
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of equipment panel fasteners 50 extended through equip
30 are provided on substantially identical transverse an
gles 31 and 32. The angles 31 and 32 are suitably se
cured to side flanges 19a, 19a on the inner and outer
sides of the transverse frame member 17 lsuch as by Welds
and the like.
’
ment panel holes 50a and through angle flange holes 45b.
If desired, the equipment panel 49 may be disposed at
the forward edge of the cabinet so that the continuous
50
The opposite ends of the angles are provided with
transverse welding llanges 33 and 34 Vwhich are integral
with angle flanges 29 and 30._ These flanges are adapted
to be secured to upright frame member flange 35 by means
55
of welds 36.
flange 35 isdisposed at the margin of the equipment
panel ‘.49. Now when the panel 49 is disposed in this
Each of the transverse frame members are provided
position, the flange 35 acts asa closure Vflange to prevent
dirt and the like fromV entering thecabinet. Suitable
equipment may be mounted on the equipmentl panel in
cluding dials, knobs, etc. both on the front and rear sides
thereof. The equipment panel 49 may be moved with
at opposite ends with end transverse welding flanges or
respect, to the struts 43 into various adjusted positions by
end closure flanges 37 and 38 _which are adapted to be
dìsengaging the angle fasteners 48 from the struts and
secured to upright frame member 24 by means of welds
then rejattaching the anglefasteners 48in other strut
39. The flanges 33 and 34 are inset relative to the flanges 60 Yholes 43b which are provided alongthe length of the
37 and 38 for the flanges 37 and 38 are disposed in over
struts 43.
lapping relation to the flanges 33 and 34 and the upright
It will be appreciated that the door 14 comprises op
flanges 25 and 3S when the upright and transverse frame
tional equipment since in some installations it may not
*mem-bers are in welded assembly.
require a door. It will further be appreciated that since
In view of the foregoing, it will be appreciated the 65 the door panel is identical in size to the side panels that
juncture between the upright and the transverse members
16 and 17 is reinforced due to the lapped engagement of
the members 16 and 17 and more particularly due to
the door panels and the side panels are all interchange~
able and may be substituted for one another, if desired.
the lapped engagement of the upright flanges 24, 25, and
28 with the transverse flanges V19a,'19a, 33, 34, 37, and
38. The above noted flanges are advantageously posi
As illustrated, the door 14 is connected to the frame 16
by means of hinges 51. The door 14 is also provided
with a latch type handle structure indicated generally at
tioned in a stepped relationship so that members 16 and
17 may be attached together in such a Way so `as tobe
better able to resist torsional twisting Vof the members
52 in FIGURE 1.
If desired, the panels 13 and 1S may be bolted to the
frame 12 by means of panel fasteners` 53, as shown in
16 `and 17 when the enclosure is loaded. In view of the
FIGURE 3 in which case it will not be necessary to use
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‘3,075,818
>trarne members each having its opposite ends disposed
in FlGURE 7, a modiñed enclosure or cabinet 10’ is
posite corners of the spaced rectangular frame members,
each of said frame members being hollow having diverg
illustrated. This cabinet l0’ includes an upright frame
ltô’ which is identical to the frame i6. A door 14’ is
mounted on the enclosure lil’ in the same way as pre
viously described. Sealing means illustrated in the form
of a gasket 55 is attached to upright iiange Z5". This
gasket extends entirely about the rectangular flange 25’ so
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a latch disposed along the top of the side panels i3, as
previously described.
in endwise iitted engagement about the associated op
ing side frame portions open at an inner corner which
corner is further defined by outer and inner sets of angu
lar relatively narrow stepped llanges generally at right
angles to each other with said sets of angular relatively
stepped llanges being connected to said side frame por
that when the door 14’ is in a closed position, the cabinet 10 tions, the sets of angular relat'vely narrow stepped flanges
may be rendered moisture and dust proof. The other
on said upright and transverse frame members at en
top, bottom, and side panels may be sealed in the same
closure frame corners of said frame being fitted together
manner. No other known metal cabinet is capable of be
and comprising means by which the upright and trans
ing converted so that it can be rendered substantially
verse frame members are secured together so as to be
moisture and dust proof merely by the installation of 15 substantially free of torsional twisting and movement out
sealing means between the panels and the panel seats.
of normal planes, each of said sets of stepped flanges on
It will be appreciated, where certain types of specialized
said transverse members having welding frame flanges
equipment are stored in the cabinets, that the user may
secured thereto and disposed at right angles to one an
wish the cabinet to be moisture and dust proof to prevent
other, the welding ñanges at opposite ends of the trans~
damage to the content. This cabinet may be lmanufac 20 verse frame members being attached to said sets of
tured initially with the gaskets or the gaskets may be in
stepped flanges ou said upright corner frame member.
stalled at some later time, as desired. Other known types
3. An enclosure for equipment to be mounted therein,
of electrical equipment cabinets cannot be readily con
an enclosure frame including upright rectangular corner
verted and rendered substantially moisture and dust proof
frame members spaced apart and disposed generally in
without substantially reconstructing the cabinet. The 25 parallel planes, said upright corner frame members eX
present cabinet due to its unique construction can be ren
tending about sides, top and bottom of the enclosure,
dered substantially moisture and dust proof merely by
transverse frame members disposed between said upright
securing gaskets to the panel seats.
corner frame members in assembly therewith at the area
Another advantage of the present cabinet is that all of
of each of their four corners, said transverse frame mem
its component parts including the base have been con 30 bers each having its opposite ends disposed in endwise
structed in accordance with RTMA standards which re
fitted engagement about the associated opposite corners of
quire the dimensions of the equipment panels to vary in
multiples of 1% inches. Thus, the equipment panels
the spaced rectangular frame members, each of said
frame members being hollow having diverging side frame
may be installed on any side of the cabinet, as desired.
portions open at an inner corner which corner is further
While the preferred embodiments of the present in 35 defined by outer and inner pairs of angular relatively
vention have been shown and described herein it is ob
narrow stepped tlanges generally at right angles to each
vious that many structural details may be changed with
other with said pairs of angular relatively stepped flanges
out departing from the spirit and scope of the appended
being connected to said side frame portions, the pairs of
claims.
angular relatively narrow stepped ilanges on said upright
I claim as my invention:
and transverse frame members at enclosure frame corners
l. An enclosure for equipment to be mounted therein,
of said frame being titted together and comprising means
an enclosure frame including upright rectangular corner
by which the upright and transverse frame members are
frame members spaced apart and disposed generally in
secured together so as to be substantially free of torsional
parallel planes, said upright corner frame members eX
twisting and movement ont of normal planes, each of
tending about sides, top and bottom of the enclosure, and 45 said upright frame members having transversely extend
transverse frame members disposed between said upright
ing hanger members secured with spaced upright portions
corner frame members in assembly therewith at the area
of said outer pairs of stepped ñanges, an upright equip
of eac-h ol' their four corners, said transverse frame mem
ment panel hanger angle secured to said hanger members
bers each having its opposite ends disposed in endwise
on each of said frame members, and an equipment panel
litted engagement about the associated opposite corners 50 secured in assembly at its opposite edges with said equip
ment panel hanger angles.
of the spaced rectangular frame members, each of said
frame members being hollow having diverging side frame
4. An enclosure for equipment to be mounted therein,
portions open at an inner corner which corner is fur
an enclosure frame including upright rectangular corner
ther deñned by outer and inner pairs of angular relative
frame members spaced apart and disposed generally in
ly narrow stepped ilanges generally at right angles to each 55 parallel planes, said upright corner frame members eX
other with said pairs of angular relatively stepped flanges
tending about sides, top and bottom of the enclosure,
being connected to said side frame portions, the inner
transverse frame members disposed between said upright
and outer pairs of said narrow stepped flanges on said
corner frame members in assembly therewith at the area
upright corner frame members and transverse members
of each of their four corners, said transverse frame mem
deñning seats for edges of cabinet panels, the pairs of 60 bers each having its opposite ends disposed in endwise
angular relatively narrow stepped ilanges on said upright
fitted engagement about the associated opposite corners
and transverse frame members at enclosure frame corners
of the spaced rectangular frame members, each of said
of said frame being titted together and comprising means
frame members being hollow having diverging side frame
by which the upright and transverse frame members are
portions open at an inner corner which corner is further
secured together so as to be substantially free of torsional 65 delined by outer and inner pairs of angular relatively
narrow stepped ñanges generally at right angules to each
twisting and movement out ot normal planes.
other with said pairs of angular relatively stepped llanges
2. An enclosure for equipment to be mounted there
being connected to said side frame portions, the pairs of
in, an enclosure frame including upright rectangular
angular relatively narrow stepped llanges on said upright
corner frame members spaced apart and disposed gen
erally in parallel planes, said upright corner frame mem 70 and transverse frame members at enclosure frame corners
of said trame being íitted together and comprising means
bers extending about sides, top and bottom or” the enclo
by which the upright and transverse frame members are
sure, and transverse frame members disposed between said
secured together so as to be substantially free of torsional
upright corner frame members in assembly therewith at
twisting and movement out of normal planes, eachof
the area of each of their four corners, said transverse 75 said upright frame members having transversely extending
enviaste
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hanger members secured with spaced upright portions of
s_aid outer pairs of stepped tlanges, an upright equipment
panel-hanger angle secured to said hanger members on
4each of said frame members, and an equipment panel
securedin assembly at its opposite edges with said equip
ment panel hanger angles, the hanger members having
Vtransversely spaced openings so that the equipment panel
hanger angles and the equipment panel can be moved
to various adjusted positions depending on the transverse
dimension of said equipment panel.
vopening is deñned by divergent relatively narrow longi
tudinal ñanges generally at right angles to each other
and each being at right angles to one of said sides to
which it is connected, said hollow one-piece channeled
member deñning a continuous annular channel opening
internally thereof, each narrow flange defining with the
longitudinal side connected thereto a seat for an edge of
a cabinet panel, said-corner post being generally in the
form of an open rectangular frame for extending around
10 the sides, top andV bottom of a cabinet, and havingtfour
corners, the tubular member having longitudinally spaced
5. An enclosure for equipment to be mounted therein,
notched areas to permit the one piece tubular member
an enclosure frame including upright rectangular corner
to be bent into rectangular form, means joining opposite
frame members spaced apart and disposed generally in
ends of said channeledmember in unitary assembly, and
parallel planes, said upright c_orner frame members eX
tending about sides, top and bottom of the enclosure, 15 transverse frame members engaged between four corners
of said parallel sided hollow one piece channeled mem~
transverse frame members disposed between said up
bers and with said frame members having means at its
right corner frame members in assembly therewith at the
opposite ends secured-and fitting about the associated
area of each of their four corners, saidv transverse frame
corners .of said -framemembers~`
members each having its opposite ends disposed in endwise
8. A. cabinet having corner posts substantially free of
litted'engagement about the associated opposite corners 20
torsional twisting and movement outof normal planes,
of the spaced rectangular frame members, enclosure
each of said posts comprising a hollow one piece tubular
panels carried on said enclosure, each of said frame mem
member having spaced longitudinal „sides open at an inner
bers being hollow having diverging side frame portions
corner area which opening is definedV by divergent rela~
open at an inner corner which corner is further defined
tively narrow longitudinalñanges generally at right angles
by outer and inner pairs of angular relatively narrow
to each other and Veach being at right angles to> one of
stepped ñanges generally at right angles to each other
said» sides to which it ìis connected, each narrow flange
withpsaid pairs of angular relatively stepped ilanges be
defining with the longitudinal side connected thereto a
ing connected to said side frame portions, the pairs of
seat for -an «edge ofta cabinetl panel, said corner post being
said-narrow stepped ilanges on said upright corner frame
members land transverse members defining seats for edges 30 generally in the form of an open rectangular frame for
extendingaround the sides, top and bottom of’a cabinet,
of cabinet-panels, the inner pairs of angular relatively nar
saidrectangular frames being joined together by trans
row stepped -ñanges on said'upright and transverse frame
Vmembers at enclosure frame corners of said frame being
versel members disposed at top and ybottom ends of the
cabinet, transverse struts connectedat opposite ends to
Afitted together and comprising means by which the up
right and Vtransverse frame membersare secured together 35 said flangesfor -joining said frames together, longitudinal
angles »havingilanges secured to said transverse struts, an
so as to be substantially free of torsional-twisting and
equipment panel disposed between said frames and se
movement out of normal planes, and sealing means be-l
cured to the cabinet by its `connection with said angles,
tween said enclosure panels and said outer stepped flanges
rendering theenclosure substantially dust and moisture 40 and means between said angles and said panel permitting
said panel to be moved back. and forth in said cabinet
prooi.
to accommodate equipment of ditferentsizes behind said
6. An enclosure for equipment to be mounted therein,
panel.
an enclosure frame including upright rectangular corner
9. A cabinet having a frame deñned by upright and
frame members spaced apart and disposed generally in
transverse frame members which are joined together so
parallel planes, said upright corner frame members eX
tending about sides, top and bottom' ofthe enclosure, and 45 the frame is substantially free of torsional twisting and
movement out of normal planes, each of saidframe mem
transverse frame members disposed between said upright
bers comprising a hollow channel-type member having
corner frame members in assembly therewith at the area
of each of their four corners, said transverse frame mem
bers each having its opposite ends disposed in endwise
spaced sides open at an inner corner area which opening
is defined at opposite sides by divergent relatively narrow
ñtted engagement about the associated opposite corners 50 rectangularly shaped flanges generally at right angles to
each other, the flanges delining a series of seats each for
of the spaced rectangular frame members, each of said
an outer peripheral margin of a cabinet panel, said up~
frame members being hollowV having diverging side frame
portions open at an inner corner which corner is further
defined by outer and inner pairs of angular relatively
narrow stepped flanges generally at right angules to each
other with said pairs of angular relatively stepped flanges
right member being generallyk in rectangular form for
extending clear around the sides, top and bottom yof a
cabinet, said rectangular frames being joined together
by thek transverse members disposedat top and bottom
ends of the cabinet, and top, bottom and side panels each
of which is seated on said> seats-in removable assembly
with the frame, the transverse frame members each hav
means at its opposite ends secured in endwise iitted
Vcabinet panel, the pairs of angular relatively narrow 60 ing
engagement about associated opposite corners of said
stepped flanges on said upright and transverse frame
rectangularly shaped llanges on said upright frame mem
members at enclosure frame corners of said frame being
bers.
iitted together and comprising means by which the up
10. A cabinet having a frame defined by upright and
right andtransverse frame members are secured together
transverse frame members which are joined together so
65A
- so as to be substantially free of torsional twisting and
the frame is substantially free of torsional twisting and
movement out of normal planes, each of said upright
movement out of normal planes, each of said frame
corner frame members comprising a strip defining con
members comprising a hollow tubular member having
tinuous `unbroken channel having right angle corners with
spaced sides open at an inner corner area which opening
opposite ends of the strip being integrally joined together. 70 is defined at opposite sides by divergent relatively narrow
being connected to said side frame portions, said narrow
stepped'ilanges on said upright corner frame members
and ¿transverse members deiining a seat for edges of a
7. In a cabinet construction requiring corner posts sub
longitudinal flanges generally at right angles to each other,
stantially free of torsional twisting and movement out
the lianges deíining a series of seats each for an outer
of normal planes, each of said posts comprising a parallel
peripheral margin cfa cabinet panel, said upright mem
ber being generally in rectangular form for extending
sided hollow one piece channeled member having spaced
longitudinal Vsides open _at anv inner corner area which 75 clear around the sides, top andA bottom of acabinet, said
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rectangular frames being joined together by the trans
frame, an odset rectangular flange angularly turned behind
verse members disposed at top and bottom ends of the
an innermost of the rectangular seat flanges on an inner
cabinet, top, bottom and side panels each of which is
side of said transverse frame member and together com
prising an inner corner, the transverse members each
seated on said seats in removable assembly with the
frame, transverse struts connected at opposite ends thereof
having angular end closure flanges disposed at opposite
to said ñanges on said upright members for joining said
ends of the sides of said transverse member, welding
tlanges being angular-ly related to one another and in a
plane generally parallel to the plane of the end closure
frames together, longitudinal angles having ilanges se
cured to said transverse struts, an equipment panel dis
posed between said frames and secured to the cabinet by
its connection with said angles, and means between said
ilanges, the welding ilanges being inset relative to the
closure ilanges at each end of the transverse members
defining an inner corner pocket area and with said inner
corner being retainingly secured in said inner corner
angles and said panel permitting said panel to be moved
back aud forth in said cabinet to accommodate equipment
of dilîerent sizes behind said panel.
ll. A cabinet having a frame defined by upright and
pocket area comprising said joint means and providing
a reinforced connection between the upright and trans
transverse frame members which are joined together so 15 verse frame members.
the frame is substantially free of torsional twisting and
i4. A corner joint for a sheet metal equipment enclo
movement out of normal planes, each of said frame
sure including a generally right angular channeled frame
members comprising a hollow tubular member having
member of strip stock including angularly related frame
spaced sides open at an inner corner area which opening
portions, the frame member having a continuous angu
is defined at opposite sides by divergent relatively narrow 20 lar frame strip portion joining the frame portions together
longitudinal llanges generally at right angles to each
and providing a channeled juncture corner at the inter
other, the ñanges deñning a series of seats each for an
section of said frame portions, the frame portions hav
outer peripheral margin of a cabinet panel, said upright
ing stepped sides providing ledges offset and disposed
member being generally in rectangular form for extend
in parallel planes with respect to one another and extend
ing around the sides, top and bottom of a cabinet, said 25 ing at right angles around the channeled juncture corner
hollow one-piece channeled member defining a continuous
at one side thereof, and a channeled transverse frame
annular channel opening internally thereof, said rectangu
member comprised of strip stock having means including
flanges on its end disposed generally at right angles to
lar frames being joined together by the transverse mem
bers disposed at top and bottom ends of the cabinet,
the transverse frame member and secured in face to face
top, bottom and side panels each of which is seated on
said seats in removable assembly with the frame, and
sealing gaslrets carried by each of said seats so that when
engagement with said ledges on said frame portions
about said juncture corner of said right angular channeled
frame member whereby the frame members are pro
vided with a sway-resistant reinforced joint at their
the panels are engaged on said sea , the cabinet is
juncture.
rendered moisture and dust proof.
l2. A cabinet having a trame defined by upright and
transverse frame members which are joined together so
the frame is substantially free of torsional twisting and
movement out of normal planes, each of said frame
members comprising a hollow tubular member having
l5. A corner joint for an equipment enclosure includ
ing a generally right angular channeled frame member
including angularly related frame portions, the f‘arne
member having a continuous angular frame strip portion
joining the frame portions together and providing a
spaced sides open at an inner corner area which opening
channeled juncture corner at the intersection of said frame
is deñned at opposite sides by divergent relatively narrow
longitudinal ilanges generally at right angles to each
portions, the frame portions having a stepped side margin
other, the lianges deiining a series of seats each for an
outer peripheral margin of a cabinet panel, said upright
with respect to one another and extending at right angles
providinfy ledges oliset and disposed in parallel planes
around the juncture corner at one side thereof, and a
member eing generally in rectangular form for extend 45 channeled transverse frame member having means includ
ing around the sides, top and bottom ot a cabinet, said
ing ilanges on its end disposed generally at right angles
hollow one-piece channeled member deiining a continuous
annular channel opening internally thereof, said rectangu
lar frames being joined together by the transverse mem
ers disposed at top and bottom ends of the cabinet,
and top, bottom and side panels each of which is seated
on said seats in removable assembly with the frame, the
frame members each being formed from a strip having
spaced notched areas disposed along the length of the
strip, the strip being bent at the notched areas across 55
to the transverse frame member and secured in face
to face engagement with said ledges on said frame por
tions about said juncture corner of said right angular
channeled frame member whereby the frame members
are provided with a sway-resistant double ledge, double
plane reinforced joint at their juncture.
lo. A corner joint for a sheet metal equipment enclo
sure including a generally right angular channeled frame
member of strip stock including angularly related frame
one of the sides providing the frame member with four
corners and with the opposite ends of the strip being
portions, the frame member having a juncture corner at
the intersection of said frame portions, the angular frame
secured in unitary assembly.
13. A cabinet having a frame deñned by upright rec
portions each having a stepped side margin providing
tangular frame members and transverse frame members 60 ledges odset and disposed in parallel planes with respect
which frame members are joined together so the frame
to one another, said ledges extending at right angles
is substantially free of torsional twisting and movement
around the juncture corner at one side thereof, and
out of normal planes, each of said frame members corn
channeled transverse frame member having means includ
prising a hollow tubular member having spaced rec
ing tlanges on its end disposed generally at right angles
tangular sides open at an inner corner area which open
65 to the channeled transverse frame member and secured
ing is defined at opposite sides by relatively narrow
rectangular seat flanges generally at right angles to each
other, the flanges extending away from the sides to which
-frame portions about said juncture corner of said right
they are attached and deline a se 'es oi seats each for an
70 members are provided with a sway-resistant reinforced
in face to face engagement with said ledges on said
angular channeled frame member whereby the frame
outer peripheral margin of a cabinet panel, joint means
joining said rectangular frames with ‘the transverse mem
bers at the corners of the upright rectangular frame
members, and top, bottom and side panels each of which
is seated on said seats in removable assembly with the 75
joint at their juncture.
17. rThe corner joint of claim 16 further characterized
by said ilanges on said channeled transverse frame mem
ber comprising angularly related channel end closure
flanges and angularly related welding flanges disposed in
3,075,818
12;
11
.L
inset relation on the transverse frame member with
respect to the channel end closure flanges.
References Cited in the ñle of this patent
UNITED STATES PATENTS
1,178,612
Weiss ______________ _- Apr. 11, 1916
2,167,525
2,411,121
2,714,546
2,902,328
2,914,294
2,977,629
Rosendale ____________ .__ Juîy 25,
Wilson _____________ __ Nov. 12,
Lesniak ______________ __ Aug. 2,
Auer ________________ __ Sept. 1,
Wells et a1. __________ __ Nov. 10,
Wolski ____________ __ Aug. 22,
1939
1946
1955
1959
1959
1961
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