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A. 19, R947.
T. W. RUNDELL
BEFRIGERATOR CABINET CONSTRUCTION
Filed Feb. 26, 1944
2,426,055
2,426,055
Patented Aug. 19, 1947
UNITED STATES PATENT OFFICE
2,426,055
_
REFRIGERATOR CABINET CONSTRUCTION
Theodore W. Rundell, Abington, Pa., assignor, by
mesne assignments, to Philco Corporation,
Philadelphia, Pa., a corporation of Pennsylvania
Application February 26, 1944, Serial No. 524,053
2 Claims. (Cl. 220-9)
2
'I'he present invention relates to refrigerator
will appear to those skilled in the art from the
cabinet construction and particularly to the con
struction and mounting of thermo-break means
employed to close the space intervening between
the outer shell and inner lining members at the
drawing in which:
door opening side of such a cabinet. More spe
framework constructed in accordance with this
cifically, the invention pertains to a breaker
strip assembly of the type providing co-planar
invention and illustratingthe mode of assembly;
Fig. 2 is a perspective view siir1,_ilarî'togliï'ig.l 1 and
surfaces at the front of the cabinet around the
showing the breaker member inposiïtionfon the>
following detailed description and accompanying
Y
Fig. 1 is a. perspective view of a disassembled
breaker-strip member -and associated cabinet
door opening.
10
cabinet;
Fig. 3 is an ~.enlarged cross-sectional
' Y g
Heretofore, in order toprevent transfer of heat
from the outer shell to the inner lining member
ing in the general direction of line 3--3’
of the cabinet and ,to provide co-planar surfaces
at the door opening, it has been customary to
Fl'g..4inisvthe*
‘anvgeneral
enlarged
direction
_cross-'sect
of line-4
’Qnalr
mount a plurality of individual fiat breaker strips, 15 looking
that is one-strip at each of the top, bottom and _
opposite side .portions'ol’v the’door opening.` The
Referring to the drawings Fig. 1 shows a do
use of such individual strips makes it `necessary '
mestic refrigerator cabinet 5 containing a food
to employ spring elements for frictionally retain
storage compartment 6 in the upper and major
ing the strips against vibration and displacement, 20 section thereof. The cabinet comprises an outer
and necessitates’alsothe use of so-called corner
shell 7 and an inner liner 8, said liner defining
clips extending between the outer shell and inner
the compartment 6 and being supported within
lining member of the cabinet to„seal the gap be
said outer shell in spaced relation thereto by
- tween the adjoining ends of the breaker strips.
' means of corner braces 8. As shown at 6a, the
Since the corner-'clips are usually made of metal, 25 liner 8 has an open side affording access to the
they afford a heat leakage path which defeats
compartment 6.
complete prevention of heat conduction between
The outer shell ‘I is fabricated, preferably, of
the cabinet'outer shell and inner lining member.
sheet metal and has a generally inverted U
It is a primary object of the invention to pro
shaped configuration. The bottom edge portions
vide aconstruction wherein a unitary breaker 30 of the shell 'I are bent inwardly at right angles
strip member may be easily and quickly mounted
to the sides of said shell thus providing flanges 9
on the cabinet and be retained securely in place
and I0 respectively cooperating with front and
thereon without the use of spring elements and « rear cross-pieces II and I 2 to form the cabinet
corner clips, said member being capable of effec
base.
tively Isealing the spaceand precluding thermal> 35 The forward edge portion of the shell 1 is re
conduction between the outer shell and the in
versely bent at right angles so as to form a fac
ner liner-'around the door opening.
ing ñange I3 and a ñange I4 disposed rearward
and
Fig. 2.
'
`
»
'
'
ì
'
. It is another >object ofthe invention to provide
ly of the flange I3, said flanges cooperating to
a _novel assembly wherein a unitary breaker strip
provide a continuous channel I5 of generally
cooperates with cabinet structural parts to facil 40 U-shaped cross-sectional formation extending
itate the mounting of the breaker strip member
about the top and sides of said open side of the
and reduce to a minimum the number of elements
foodqstorage compartment 6 and terminating at
required to secure said member in position, there
the bottom of the cabinet in open ends as shown
by hastening production and effecting a saving
at l5a.
45
in manufacturing cost.
'I‘he liner 8 is also bent at right angles out
Stil1 another object of the invention is to pro
vide a unitary breaker strip member constructed
wardly from the open side Ba of the food storage
compartment S to form about said open side, a
e flange I6 extending toward the channel I5 of the
to blend with adjoining portions of the cabinet
frame, thereby providing a substantially smooth
shell 1.
continuous surface which not only enhances the ‘
appearance of the cabinet but further eliminates
condensate-catching pockets with the result that
rust and paint breakdown are prevented without
the use or application of sealing compounds.
Other objects and advantages of the invention
E
.
.
A bottom pan I'I spans the sides of the outer
shell ‘I and extends from front to back of the
cabinet. The pan I'I is arranged in spaced rela-y
tion to the bottom wall of the inner liner 8 and
has its rear edge portion bent downwardly to form
55 a back wall I8 for the lower and minor section of
2,426,055
3
the cabinet, said wall having a window I9 provid
able apertures 4I spaced apart a distance corres
ponding to the spacing between the openings 36
ing access into said lower section for the Purpose
in the flange I6 of the inner liner 8. and the shank
of installing and servicing the usual motor-com
pressor unit (not shown). An angular generally
L-shaped metallic strip 20 is secured to the front
edge portion of the pan I1 preferably by means
portions 31 of the fasteners 34 project through
said apertures 4 I, with the head portions 36 of the
fasteners disposed between the leg portion 40 of
the clip member and the breaker strip member 24,
of spot welding, as indicated at 2I in Fig. 4.
the latter being grooved or recessed, as indicated
The space between the adjacent portions of the
at 42, to receive said head portions 36, as shown
inner liner 8 and the outer shell 1 and between
in said Figs. 3 and 4 of the drawing. In addition
10
said liner and the bottom pan I1, is filled with
'to
providing a means for securing the fasteners
suitable insulating material 22 as is customary in
34 to the breaker strip member 24, the clip mem
the art.
In order to close the gap between the forward
edges of the outer shell 1 and the inner liner 8
and to conceal and retain the insulating material
therebetween, and in accordance with this in
vention, a unitary breaker strip member 24 is
provided, preferably of a non-metallic and non
hygroscopic thermal-insulating material or a ma
ber 38, particularly the end portion 39 thereof
which engages over the inner edge 33 of said
breaker strip member, provides a trim for said
inner edge portion which otherwise would be ex
posed to view. Thus, the clip member 38 materi
ally enhances the appearance of the breaker strip
assembly.
'»
As more clearly shown in Fig. 4, the lower outer
terial having relatively poor heat conductive pro 20 edge portion 43 of the breaker strip member 24 is
perties. The breaker strip member 24 has a sub
depressed to lie inwardly of the plane of the outer
stantially rectangular frame-like configuration
face of the bottom portion 26 of said member and
comprising continuous top, bottom and opposite
terminates in a right angular inturned flange 44,
side portions respectively designated by the refer
this flange being adapted to abut the underside
ence characters 25, 26, 21 and 28. The outer 25 of the L-shaped strip 20 which, as previously
edge portions 29 of the opposite sides 21 and 28
described, is secured to the forward edge of the
of said member 24 are adapted, a'sindicated by the
bottom pan I1. This edge portion 43 is provided
arrows in Fig. 1, to be entered into the open ends
with a series of spaced apertures 45 registering
I5a of the channel I5 and advanced therein until
with aperture 46 in the upstanding leg of the ~
the breaker strip member 24 as a whole reaches 30 Lfshape strip 20 for receiving suitable securing
its operative position on the cabinet, as shown in
elements indicated at 41 in Fig. 4, to lock the
breaker strip member in position on the cabinet.
Fig. 2.
In this position, edge portion 29 forming the
' In practice, it is found desirable to first insert 1
outer margin of the opposite sides 21 and 28, and
the snap-fasteners 34 through the openings 4I. in
the edge portion 30 forming the outer margin of 35 the clip member 38, after which the latter iS `eri- v " '
the top 25 of the breaker strip member 24 are
gaged over the inner edge portion 33 of the break-l
er strip member 24 with the heads 36 of the said
fasteners disposed in the groove or recessesg42
said edge portions are depressed from the plane of
in the member 24. Thereafter, the edge portions y
the outer face of the said member 24, so that the 40 29 at the sides 21 and 28 of the breaker strip
said face will lie flush with and extend contigu
member, are inserted into the open ends ISa oi
ously to the outer face of the flange I3 of the shell
the channel I5, and the member 24 then slidably
adapted to fit into the channel I5 formed in the
outer shell 1 of the cabinet and, as shown in Fig. 3,
1. The depressed edge portions 29 and 3D provide
advanced in the channel into the operative posi
a surface 3I for 'snug engagement with the inner
tion where the edge portion 39 at the tcp of
face of the flange I3 aforesaid and for maintain 45 said member enters the corresponding portion>
ing said engagement the said edge portions 29 and
30 are terminated in angular sections 32 which,
as shown in Fig. 4, react against the flange I4.
of the channel and the edge portion 44 at the
‘bottom section 28 abuts the underside of the bot
tom pan-carried strip 20.
y
With this construction, a positive f rictional action 50 In order that the projecting shank portions 31
is obtained between the breaker strip member 24
of the fastener elements 34 may clear any part „
and U-shaped channel I5 to securely hold the
of the cabinet structure which might interfere
breaker strip member in the desired position
with the free sliding movement of the breaker
against the flange I3 and to restrain the member
strip member, the inner side edges of -said mem
against vibration and accidental displacement. 55 ber may be flexed manually until themember
The continuous inner edge portion 33 forming
reaches its final position, whereupon the shank
the inner margin of the breaker strip member 24
portions 31 of the fastener elements 34 may be
is adapted to be secured to the flange I6 of the
snapped or projected through the openings 35
inner liner 8 by means of suitable snap fasteners
in the flange I6 of the inner liner 8, and the secur
34 engageable with said flange through con
ing elements 41 inserted into the aligned aper
veniently located openings 35, and said fasteners 60 tures 45 and 46 in the bottom outer edge por
34 may be secured at the inner edge portion 33 of
tion of the breaker strip member and in adjoin»
the breaker strip member 24 by means of -a clip
member 38. The fasteners 34 and clip member
38 may be and preferably are of the type disclosed
and claimed in applicant’s prior Patent No. 2,313,
` ing portion of the angular strip 20. In this man
. ner the breaker strip member 24 becomes rigidly
flxed’in its operative position.v
It is to be noted thatthe breaker strip member
671 issued March 9, 1943.
24
is preferably of a width somewhat less than
`As best shown in Figs. 3 and 4,.the fasteners 34
bottomof the
comprise head and resilient shank portions 38 a Í the maximum spacing between32the
in the flange I5
and
the
clipy
member
3t‘is
of
'
'
channel
I5
andthe
openings
and 31 respectively,
generally J-shaped cross-section, ¿having " its 70 l of the inner liner 8 so that, normally, the outer
edge portions 29 and 30 of the breaker strip mem
formed-end portion 39 arranged‘to receive the
ber 24 do not extend the full depth of said chan
inner edge portion 33 of the breakerstrip member
nel as shownA in Fig. 3, thus providing suilicient
24 with the legv portion 40 of v`said clip lme'mber
slight adjustments in the spacing
underlying the rear surface of thebreakerstrip
member.
The clip member is providedwithsuitéisqgiolerance .for
2,426,055
of the adjacent wall portions ofl the outer shell
nel "to a position wherein the said outer edges are
in engagement with the top and side 'sections of
the shell and' with said pan member, and said in
operative position, the construction of the refrig
ner edge carrying means for detachable engage
erator cabinet 5 may be completed by mounting
ment with the said iiange of the liner.
the doors, the closing panels and other acces
2. In a refrigerator cabinet, an outer shell hav
sories, and by finishing the entire structure in Q Y ing top and side sections, an inner liner having
3 and the inner liner I4.
After the breaker strip 24 has been ii'xed in its
accordance with the usual practice. Y
From the foregoing description, it will be ap
preciated that the present invention provides a
breaker strip assembly which may be mounted
readily and quickly in the cabinet structure and
which may be positively retained thereon with
out the ruse of springs, corner clips or the like.v
The construction is such that the breaker strip
member 24 may readily -be removed from the cab
inet if necessary. Also, the construction and
association of the breaker strip member _24 with
the cabinet structure provide an arrangement
’ top, side, and bottom sections' mounted Within
said shell with the top and side sections ofthe
liner in spaced relation to the top and side sec
tions of the shell, said shell further having Yan
integral channel extending continuously abo/ut
the top and side sections thereof, and said inner
liner having a, continuous flange about its top,
side, and -bottom sections, a member spanning the
side sections of said shell and disposed in spaced
relation to the -bottom section of said liner, the
channel at said side sections of the shell’termi
nating in open ends below said member, a sub
capable of effectively sealing the space and insur~ 20 stantially rigid unitary frame like breaker-strip
ing non-conductance of heat between the outer
shell and inner liner around the periphery of the
door opening.
having outer and inner marginal edges, said outer
edges being disposed for introduction into said
'
channel through the open ends thereof and be
Whereas a particular embodiment of the inven
ing slidable in said channel to a position where
tion has been herein shown and described, it is 25 in the said outer edges are in engagement with
to be understood that the invention is not lim
the top and side sections of the shell and with
ited thereto, and that changes and modifications
said member, and means to secure the inner edge
may be made within the scopeof the appended
claims.
I claim:
'
'
1. In a refrigerator cabinet, an outer shell hav
ing top and side sections, an inner liner having
top, side> and bottom sections and mounted-with
in said shell with the top and side sections of the
liner in spaced relation to the top and ~side sec
tions of the shell, said shell further having an
integral channel extending continuously about
the top and side sections thereof, and said inner
oif said breaker-strip to the said flange of the
lner.
30
'ITIEODORE W. RUNDELL.
REFERENCES CITED
The following references are of record inthe
ille of this patent:
Number
2,076,821
liner having a continuous flange about its top, side
2,279,050
and bottom sections, a bottom pan member span 40 2,162,271
ning the side sections of said shell and disposed
2,213,155
in spaced relation to the bottom section of said
2,313,671
liner, the channel at said side sections of the
2,329,755
shell terminating in open ends below said bottom
2,343,447
pan, a substantiallyv rigid unitary frame like
2,301,020
breaker strip member having outer and inner
2,368,542
marginal edges, said outer edges being disposed
for introduction into said channel through the
open ends thereof and being slidable in said chan
2,346,566
2,329,752
UNITED STATES Pi’i'I'lìIN'I'S`
Name
Date
Lipman __________ __ Apr. 13, 1937
Lenning ___________ __ Apr. 7, 1942
Munters ___..1 ____ __- June 13, 1939
Yoxsimer ________ __ Aug. y27, 1940
Rundell _________ __ Mar. 9, 1943
Goulooze ________ -.._Sept. 21, 1943
Drake _______ __a____ Mar. 7, 1944
Dailey ____________ -_ Nov. 3, 1942
Hall _____________ _.- Jan. 30, 1945
Ford _____________ .__ Apr. 11, 1944
GouloOZe ________ .__ Sept. 21, 1943
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