U.S. patent number 3,815,669 [Application Number 05/353,455] was granted by the patent office on 1974-06-11 for mullion butter conditioning compartment.
This patent grant is currently assigned to Whirlpool Corporation. Invention is credited to Robert E. Lindenschmidt.
United States Patent |
3,815,669 |
Lindenschmidt |
June 11, 1974 |
MULLION BUTTER CONDITIONING COMPARTMENT
Abstract
Refrigeration apparatus having a butter conditioning and storage
compartment in a separator wall that separates the above freezing
refrigerated compartment from the below freezing storage
compartment with the butter compartment arranged to receive
refrigeration from the above freezing compartment together with
heating means for heating the butter compartment to a desired
conditioning and storage temperature. The disclosure also includes
the provision of auxiliary heating means for the butter compartment
operating in conjunction with condensate preventing heating means
normally provided at the outer shell of the refrigerator in the
vicinity of the separator wall that separates the above freezing
and below freezing compartments.
Inventors: |
Lindenschmidt; Robert E.
(Evansville, IN) |
Assignee: |
Whirlpool Corporation (Benton
Harbor, MI)
|
Family
ID: |
23389175 |
Appl.
No.: |
05/353,455 |
Filed: |
April 23, 1973 |
Current U.S.
Class: |
165/58; 62/447;
62/377 |
Current CPC
Class: |
F25D
23/123 (20130101) |
Current International
Class: |
F25D
23/12 (20060101); G05d 023/19 () |
Field of
Search: |
;165/30
;62/377,419,447,441,383 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Perlin; Meyer
Assistant Examiner: Capossela; Ronald C.
Attorney, Agent or Firm: Hofgren, Wegner, Allen, Stellman
& McCord
Claims
The embodiment of the invention in which an exclusive property or
privilege is claimed is defined as follows:
1. Refrigeration apparatus, comprising: an insulated cabinet
defining an above freezing refrigerated compartment, a below
freezing storage compartment and an insulated separator wall
therebetween having an external shell; a first access door normally
closing said above freezing refrigeratd compartment; a second
access door normally closing said below freezing storage
compartment; a butter conditioning and storage compartment means in
said separator wall in heat exchange relationship into said
refrigerated compartment to be chilled thereby; and heating means
for heating said butter compartment.
2. The apparatus of claim 1 wherein said separator wall is
essentially horizontal, said butter compartment is located in the
bottom of the wall and there is provided a butter compartment
closing door with mounting means for opening said butter
compartment door downwardly.
3. The apparatus of claim 2 wherein said butter compartment door
has one end adjacent said first access door and an opposite end
remote therefrom with hinge means provided at said opposite end for
permitting downwardly opening movement of said butter compartment
door.
4. The apparatus of claim 3 wherein said butter compartment and
door are positioned adjacent to said first access door, thereby
providing ready access to the refrigerated compartment and butter
compartment simultaneously by way of said first access door.
5. The apparatus of claim 1 wherein said butter compartment is
located adjacent to said separator wall external shell and there
are provided heating means at said shell for preventing substantial
external condensation thereon and means mounting the heating means
adjacent to said butter compartment to comprise also said heating
means for the butter compartment.
6. The apparatus of claim 5 wherein there are provided auxiliary
heating means in close thermal relationship to said butter
compartment.
7. Refrigeration apparatus, comprising: an insulated cabinet
defining an above freezing refrigerated compartment, a below
freezing storage compartment and an insulated separator wall
therebetween having an external shell; a first access door normally
closing said above freezing refrigerated compartment; a second
access door normally closing said below freezing storage
compartment; a butter conditioning and storage compartment means in
said separator wall in heat exchange relationship into said
refrigerated compartment to be chilled thereby; a butter
compartment closing door with mounting means for opening said
butter compartment door downwardly; and support means on said
compartment closing door for supporting said butter.
8. The apparatus of claim 7 wherein said support means comprises a
butter tray.
9. The apparatus of claim 8 wherein said butter compartment door
has one end adjacent said first access door and an opposite end
remote therefrom with hinge means provided at said opposite end for
permitting downwardly opening movement of said butter compartment
door and wherein said butter compartment and door are positioned
adjacent to said first access door, thereby providing ready access
to the refrigerated compartment and butter compartment
simultaneously by way of said first access door.
10. The apparatus of claim 8 wherein said butter compartment is
located adjacent to said separator wall external shell and there
are provided heating means at said shell for preventing substantial
external condensation thereon and means mounting the heating means
adjacent to said butter compartment to comprise also said heating
means for the butter compartment and auxiliary heating means in
close thermal relationship to said butter compartment.
Description
BACKGROUND OF THE INVENTION
One of the features of this invention is to provide in a
refrigeration apparatus a butter conditioning and storage
compartment positioned in the separator wall dividing the freezer
from the refrigerator together with heating means for maintaining
the butter compartment at the desired temperature.
Another feature of the invention is the provision of such an
apparatus in which the butter compartment is located adjacent the
external shell defining the outside of the separator wall between
the freezer and refrigerator so that the butter compartment can
receive heat from the customary heater used to prevent moisture
condensation on the outer surface of this shell.
The most pertinent prior art of which applicant is aware are U.S.
Pats. Nos. 2,311,549 and 2,317,816. These patents, however, do not
disclose the invention disclosed and claimed here.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an elevational view partly broken away of a refrigeration
apparatus embodying the invention.
FIG. 2 is an enlarged fragmentary sectional view taken
substantially along line 2-2 of FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENT
In the embodiment disclosed in the drawings the refrigeration
apparatus 10 is a combined refrigerator and freezer with the above
freezing storage compartment or refrigerator 11 being separated
from the top below freezing storage compartment or freezer 12 by an
insulated separator wall 13. Each refrigerator compartment 11 and
freezer compartment 12 is provided with a hinged access door 14 and
15, respectively, with these doors being shown in open positions in
FIG. 1.
As can be seen in the enlarged fragmentary horizontal section of
FIG. 2 the separator wall 13 is provided with insulation 16 and has
a top shell 17 and a bottom shell 18.
Located in the separator wall 13 is a butter conditioning and
storage compartment means 19, hereinafter identified as a butter
compartment, and this compartment is in heat exchange relationship
through and around a closure 25 with the refrigerator 11 to be
chilled thereby.
In order to maintain the interior of the butter compartment 19 at
the desired temperature it is provided with heating means
illustrated by the resistance wires 20. These heater wires 20 are
located at the external shell 21 of the separator wall and are of
the type customarily used to prevent moisture condensation on the
outer surface of the shell. The means 22 for mounting the heater
wires 20 on the shell 21 also mount the wires in close proximity to
the butter compartment 19 so that the compartment and the butter 23
which is here shown as a customary quarter pound stick can receive
heat from these heater wires 20. If additional heating is required
or desired, the compartnent 19 itself can include its own
resistance heating wires as illustrated at 24.
The butter compartment 19 has its outer end adjacent the
refrigerator access door 14 so that the opening of the door 14
immediately provides access to the butter compartment and its
bottom closure door 25. The butter compartment door 25 is hinged at
the rear about a hinge pin 26 and is movable from the closed
position shown in FIG. 2 to the open position 27 shown in broken
lines in FIG. 2 by moving the door about a relatively small
angle.
The extent of opening movement of the door 25 is limited by a
scoop-shaped stop 28 with an open front 29 with the result that
when the door 25 is in its lowermost position the butter 23 and the
removable tray 30 on which it rests is readily accessible from the
front of the refrigerator. When the butter compartment door 25 is
in its raised closed position where it is held by a steel spring
retainer 31 the open front 29 of the stop 28 is concealed behind a
masking flange 32 on the door 25.
As can be seen from the above description, the butter conditioning
and storage compartment of this invention has a number of very
important advantages. Thus it provides for storage of butter at a
desired temperature by using the heating means normally provided in
a refrigeration apparatus of this type. It also provides a butter
compartment without reducing the storage space of the refrigerator
by using space normally occupied by insulation. Also, if additional
heat should be required to maintain the proper temperature in the
butter compartment this is easily achieved as by the heating wires
24 and this auxiliary wiring is conveniently adjacent to the
existing refrigerating wiring such as that shown at 20 with the
result that no expensive wiring modifications or extensions are
necessary. If desired, this construction provides a ready
adaptability to added louvers for directing low temperature air
into the compartment for storing the butter in a hard condition for
maximum storage life if such should be desired.
Another advantage of this construction is that substantially all
the parts except the metal spring retainer 31 can be made of molded
plastic that may be snapped together.
Having described my invention as related to the embodiment shown in
the accompanying drawings, it is my intention that the invention be
not limited by any of the details of description, unless otherwise
specified, but rather be construed broadly within its spirit and
scope as set out in the appended claims.
* * * * *