U.S. patent number 3,878,693 [Application Number 05/458,810] was granted by the patent office on 1975-04-22 for electrical system for a refrigerator ice service.
This patent grant is currently assigned to General Electric Company. Invention is credited to Luis E. Prada.
United States Patent |
3,878,693 |
Prada |
April 22, 1975 |
ELECTRICAL SYSTEM FOR A REFRIGERATOR ICE SERVICE
Abstract
An electrical system of a refrigerator for controlling operation
of a freezer light and an automatic ice maker in response to the
position of an ice bucket of the ice maker and first and second
doors of the refrigerator.
Inventors: |
Prada; Luis E. (Louisville,
KY) |
Assignee: |
General Electric Company
(Louisville, KY)
|
Family
ID: |
23822173 |
Appl.
No.: |
05/458,810 |
Filed: |
April 8, 1974 |
Current U.S.
Class: |
62/131;
62/344 |
Current CPC
Class: |
F25C
1/04 (20130101); F25D 25/025 (20130101); F25D
2700/02 (20130101); F25D 27/00 (20130101); F25D
2323/023 (20130101) |
Current International
Class: |
F25C
1/04 (20060101); F25c 005/18 () |
Field of
Search: |
;62/131,344,377 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Wayner; William E.
Claims
What is claimed is:
1. In a refrigerator having a freezing compartment having a main
access opening, an automatic ice maker, power means, a movable ice
bucket, a main freezer door having a minor access opening
associated with the main access opening, an ice access door
positioned on the main freezer door and associated with the minor
access opening thereof, a freezing compartment light, and means for
moving the ice bucket in response to opening and closing the ice
access door, said ice bucket being movable by said moving means
along a pathway between first and second positions, the improvement
comprising:
a main freezer door switch connected to the power means and the
light and being actuatable in response to opening and closing the
main freezer door;
a double-throw switch connected to the power means in parallel with
the main freezer door switch and having one output terminal
connected to the automatic ice maker and the other output terminal
connected to a hereafter second switch, said double-throw switch
being positioned at a first location adjacent the ice maker in the
pathway of the movable ice bucket for actuation thereby; and
a second switch connected to the double-throw switch and to the
light and being positioned adjacent the ice maker at a location
spaced a preselected distance from the double-throw switch in a
direction toward the minor access opening and in the pathway of the
movable ice bucket for actuation thereby.
Description
BACKGROUND OF THE INVENTION
It is now common to find automatic ice makers in the freezer
section of household refrigerators that store the ice cubes in an
ice bucket or receptacle. To provide access to the ice bucket
without opening the entire freezer door, small access doors are
provided with mechanisms that will latch onto the bucket and pull
it forward as the access door is opened, thereby making it easier
to get at the ice cubes in the bucket. An example of such a
mechanism is described in U.S. Pat. No. 3,643,464 -- Hilliker.
While the mechanism disclosed in this patent operates
satisfactorily, it has been found desirable to provide a control
means associated with the main freezer door, the ice access door,
and the receptacle which will interrupt the ice harvesting cycle
when the receptacle is not positioned for receiving ice pieces from
the ice maker and which will selectively operate a light within the
freezing compartment.
SUMMARY OF THE INVENTION
In accordance with this invention, a refrigerator has a freezing
compartment having a main access opening and an automatic ice
maker, a movable ice bucket, and a light positioned in the freezing
compartment. A main freezer door is associated with the main access
opening and has a minor access opening therethrough. An ice access
door is positioned on the main freezer door and associated with the
minor access opening. Means is provided for moving the ice bucket
along a pathway between first and second positions in response to
opening and closing the ice access door. A main freezer door switch
is connected to the power means and the light and is actuatable in
response to opening and closing the main freezer door. A
double-throw switch is connected to the power means in parallel
with the main freezer door switch. The double-throw switch has one
output terminal connected to the automatic ice maker and the other
output terminal connected to a second switch and is positioned at a
first location adjacent the ice maker in the pathway of the movable
ice bucket for actuation thereby. The second switch is connected to
the double-throw switch and to the light and is positioned adjacent
the ice maker at a location spaced a preselected distance from the
double-throw switch in a direction toward the minor access opening
and in the pathway of the movable ice bucket for actuation
thereby.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGS. 1 and 2 are diagrammatic side views in partial section of a
portion of a refrigerator having the apparatus of this
invention;
FIG. 3 is a diagrammatic top view in partial section of a portion
of a refrigerator having the apparatus of this invention; and
FIG. 4 is a diagrammatic view of the circuit of this invention.
DETAILED DESCRIPTION OF THE INVENTION
In the embodiment of FIG. 1, a refrigerator 10, such as a household
refrigerator, has a freezing compartment 12 having a major access
opening 14 and an automatic ice maker 16, a movable ice bucket 18,
and a light 20 positioned in the freezer compartment. A main
freezer door 22 is associated with the major access opening 14 and
has a minor access opening 24, an ice access door 26 connected to
and associated with the minor access opening 24, and an ice bucket
moving means 28 (FIG. 2) associated with the ice access door
26.
The light 20 and the automatic ice maker 16 are connected to an
electrical power source 30 for the operation thereof. The light 20
is also connected to a third or main freezer door switch 32 for
turning the light 20 on and off in response to opening and closing
the main freezer door 22. The ice bucket moving means 28 can be of
various constructions for moving the ice bucket 18 toward and/or
through the minor access opening 24 in response to opening the ice
access door 26 and rearwardly into the freezing compartment 12 in
response to closing the ice access door 26. An example ice bucket
moving means 28 can be the apparatus of U.S. Pat. No. 3,643,464 --
Hilliker, et al.
In the embodiment of FIGS. 1 and 3, the ice bucket 18 is movable by
the moving means 28 between first and second positions. At the
first position (FIG. 1), the ice bucket 18 is positioned adjacent
the automatic ice maker for receiving ice pieces therefrom. At the
second position (FIG. 3), the ice bucket 18 is positioned at least
a preselected distance along the ice maker 16 in a direction toward
the minor access opening 24.
First and second switches 34, 36 are positioned adjacent the ice
maker 16 in the pathway of the movable ice bucket 18 for actuation
by the ice bucket 18 in response to movement thereof.
The first switch 34 is positioned at a first location adjacent a
rearward end portion 38 of the ice maker 16. The second switch 36
is positioned at a second location spaced a preselected distance
from the first switch 34 in a direction toward the minor access
opening 24 and spaced from said openings 24.
The spacing between the first and second switches 34, 36 is
dependent upon the length of the ice bucket 18 and the size and
operation of the ice bucket moving means 28. After the variables of
these elements have been determined, one skilled in the art can
easily determine the switch spacing necessary for operation of the
switches as hereafter more fully described.
In the embodiment of FIG. 3, the switches 34, 36 are actuatable by
depressing buttons 40, 41 of the respective switches in response to
contacting the ice bucket 18. It should be understood, however,
that toggle type switches or others can be utilized without
departing from this invention.
In the embodiment of FIG. 4, power source 30 passes electricity to
the input terminal 42 of the main freezer door switch 32 and the
input terminal 44 of the first switch 34, said switches 32, 34
being connected in parallel. The main freezer door switch 32 is a
single-throw switch actuatable in response to opening and closing
the main freezer door 22, and the output terminal 60 of switch 32
is connected to the light 20.
The first switch 34 is a double-throw switch having first and
second output terminals 46, 48. The first output terminal 46 is
connected via line 47 to the ice maker 16 for supplying operating
power for harvesting ice pieces from the mold 49 of the ice maker
16 and to a water control valve 52 for controllably passing water
into the mold 49, said ice maker 16 and valve 52 being connected in
parallel. The second output terminal 48 is connected via line 51 to
the input terminal 56 of the second switch 36. The second switch 36
is a single-throw switch having its output terminal 58 connected to
the freezer light 20 via line 59.
In operation of the apparatus of this invention, referring to FIGS.
1 and 4, the ice bucket 18 is at the first position for receiving
ice from the automatic ice maker 16, switch actuating button 62 is
depressed in response to the main freezer door 22 being closed, and
switch actuating buttons 40, 41 of the respective first and second
switches 34, 36 are depressed in response to the ice bucket 18
being positioned at the rearward position adjacent the ice maker 16
for receiving ice pieces therefrom. With the switch actuating
buttons 40, 41, and 62 in the depressed position, switch 32 is
open, switch 34 is closed on the first output terminal 46 and open
on the second output terminal 48, switch 36 is closed, the light 20
if "off" and power is supplied from output terminal 46 to ice maker
16 and control valve 52.
Where the main freezer door 22 is open, actuating button 62 is
released (as shown by broken lines of FIG. 1), switch 32 is closed
in response thereto, and the freezer light 20 is energized.
Referring to FIGS. 2 and 4, the main freezer door 22 is closed and
the ice access door 26 is opened at least a preselected width,
thereby causing the ice bucket 18 to be moved from its first
position (FIG. 1) to an intermediate location (FIG. 2) spaced
preselected distances from said first and second positions (FIGS. 1
and 3) for the recovery of ice pieces from the ice bucket 18.
At this intermediate location of the ice bucket 18, actuating
button 41 remains depressed by the ice bucket 18 and switch 36 is
closed in response thereto, actuating button 62 remains depressed
by the main freezer door 22 and switch 32 is open in response
thereto, actuating button 40 is released by removal of the ice
bucket 18 from contact therewith and switch 34 is open on the first
output terminal 46 and closed on the second output terminal 48 in
response thereto, power to the ice maker 16 is terminated, and the
freezer light 20 is energized through line 59.
Referring to FIGS. 3 and 4, the ice bucket 18 is at the second
position wherein the ice bucket 18 is spaced from the first and
second switches 34, 36.
At this second position, actuating button 62 is depressed by the
main freezer door 22 and switch 32 is open in response thereto,
actuating button 40 is released and switch 34 is open on the first
output terminal 46 and closed on the second output terminal 54,
power to the ice maker is terminated, power is delivered through
switch 34 to the input terminal 56 of switch 36, actuating button
41 is released and switch 36 is open in response thereto, and the
light 20 is not energized.
A study of the drawings will show that as the ice bucket 18 is
returned from the second position (FIG. 3) to the ice receiving or
first position (FIG. 1), the above described conditions will be
repeated in reverse. Since the freezer light 20 is connected to the
power source through switch 32, opening of the main freezer door 22
will energize the light irrespective of the position of or absence
of the ice bucket 18.
By so constructing the electrical system of the refrigerator ice
service, the freezer light 20 is energized or de-energized in
response to the need for light and the operation of the ice maker
is terminated when the bucket is not in a preselected position for
receiving ice.
While there has been a number of embodiments of the present
invention described, it is to be understood that the invention is
not limited thereto and it is intended by the appended claims to
cover all such modifications falling within the true spirit and
scope of the invention.
* * * * *