U.S. patent number 3,889,888 [Application Number 05/480,040] was granted by the patent office on 1975-06-17 for combination ice cube and crushed ice dispenser.
This patent grant is currently assigned to General Electric Company. Invention is credited to Luis E. Prada.
United States Patent |
3,889,888 |
Prada |
June 17, 1975 |
Combination ice cube and crushed ice dispenser
Abstract
An ice dispenser particularly for a household refrigerator
includes an ice cube storage receptacle and an integral dispensing
and crushing means for dispensing batches of either ice cubes or
crushed ice of two different grades.
Inventors: |
Prada; Luis E. (Louisville,
KY) |
Assignee: |
General Electric Company
(Louisville, KY)
|
Family
ID: |
26995935 |
Appl.
No.: |
05/480,040 |
Filed: |
June 17, 1974 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
|
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348867 |
Apr 9, 1973 |
3843067 |
Oct 22, 1974 |
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Current U.S.
Class: |
241/101.1;
62/320; 241/239; 241/DIG.17; 241/190; 241/243 |
Current CPC
Class: |
F25C
5/22 (20180101); F25C 5/046 (20130101); Y10S
241/17 (20130101) |
Current International
Class: |
F25C
5/04 (20060101); F25C 5/00 (20060101); B02c
013/06 () |
Field of
Search: |
;241/86,88.2,88.4,89K,11R,101.1,190,238,239,243,DIG.17 ;62/320 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Lake; Roy
Assistant Examiner: Goldberg; Howard N.
Parent Case Text
CROSS-REFERENCE TO RELATED APPLICATION
This application is a divisional of copending Application Ser. No.
348,867, filed Apr. 9, 1973, now U.S. Pat. No. 3,843,067, Oct. 22,
1974.
Claims
What is claimed is:
1. A combination ice cube and crushed ice dispenser comprising:
walls defining a crusher housing having an outlet at the bottom
thereof;
a horizontally rotatable member carrying crusher blades in said
crusher housing;
said housing including an ice inlet opening generally above and to
one side of the axis of said rotatable member through which ice
cubes are introduced into the rotational path of said crusher
blades;
said crusher walls adjacent and opposite said opening confining the
ice cubes passing downwardly through said crusher housing to said
outlet to a discharge path intersecting the rotational path of said
crusher blades;
means for rotating said rotatable member in a direction such that
said arms move upwardly along said discharge path;
said crusher including anvil means on the opposite side of said
axis from said opening for cooperating with said crusher blades to
crush ice pieces conveyed to said anvil means;
said anvil means comprising a set of stationary arms spaced to
provide coarse crushed ice and a set of movable arms movable to an
operative position below said stationary arms and in the path of
said blades for providing finely crushed ice; and
said crusher including a pivotally mounted member movable between a
first position permitting said ice cubes to pass directly to said
outlet and a second position in which the lower end thereof
overlaps said stationary arms for intercepting the passage of said
ice cubes downwardly through said passage whereby said ice cubes
are picked up by said crusher arms and conveyed to said anvil
means;
said movable arms engaging and supporting the lower end of said
interceptor means when said movable arms are in their operative
position.
2. A dispenser according to claim 1 in which said movable arms are
wider than said stationary arms and aligned therewith.
3. A dispenser according to claim 1 in which the lower edges of
said stationary arms and the upper surfaces of said movable arms
are of approximately the same curvature.
4. A dispenser according to claim 3 in which said movable arms are
spring biased to their operative position.
Description
Certain mechanical control features described herein are, as
indicated hereinafter, specifically claimed in Application Ser. No.
348,940, now U.S. Pat. No. 3,824,805, July 23, 1974 filed
concurrently with Application Ser. No. 348,867 (U.S. Pat. No.
3,843,067) in the name of Luis E. Prada and assigned to the same
assignee as the present invention.
BACKGROUND OF THE INVENTION
A number of modern household refrigerators include automatic ice
makers and means for receiving and storing the ice pieces made by
the ice makers at below freezing temperatures. Although the ice
pieces produced by such ice makers may be of various shapes, they
are generally referred to as ice cubes, which term will be used
herein and in the appended claims as covering ice pieces of any
shape or size producible by the ice maker suitable for household
refrigerator use.
U.S. Pat. No. 3,602,441-Alvarex discloses and claims a combination
ice cube receptacle and storage means and ice dispensing means
designed to dispense either ice cubes or crushed ice.
The present invention, which is an improvement on the dispenser and
crusher of the Alvarez patent, is designed to provide the user a
selection of either ice cubes or crushed ice of two different
grades, that is, either coarse or finely divided crushed ice.
SUMMARY OF THE INVENTION
In accordance with the illustrated embodiment of the present
invention, there is provided a combination ice cube and crushed ice
dispenser comprising a storage section for storing ice cubes and a
crusher section separated from the storage section by a vertical
wall. The wall has a dispensing opening therein and the crusher
section has an outlet at the bottom thereof. For the purpose of
dispensing crushed ice, there is provided a horizontally disposed
rotatable member which extends through the wall above the outlet
and adjacent and to one side of the dispensing opening. This
rotatable member includes a plurality of crusher blades in the
crusher section which rotate upwardly through the path of ice cubes
falling from the discharge opening to the outlet. A pivotally
mounted interceptor means is movable to a position adjacent the
crusher blades for intercepting the ice cubes so that the cubes are
carried by the rotating blades into engagement with anvil means on
the opposite side of the rotating member axis. The anvil means
comprises two sets of arms. One set is stationary and disposed to
provide coarse crushed ice while the second set is movable from an
inoperative position to an operative position below the stationary
arms but in the path of the rotating blades, the spaces between the
movable arms being narrower than those between the stationary arms
for providing a finely crushed ice.
BRIEF DESCRIPTION OF THE DRAWINGS
In the accompanying drawing:
FIG. 1 is a top view, partly in section, of the device of the
present invention;
FIG. 2 is a front elevational view, partly in section, of the
crusher component of the invention; and
FIG. 3 is a view similar to FIG. 2 showing the operative components
of the crusher in a second operative position.
DESCRIPTION OF THE PREFERRED EMBODIMENT
With reference to FIG. 1 of the accompanying drawing, there is
illustrated a portion of a household refrigerator comprising a
freezer compartment 1 having an access opening thereof closed by a
door 2. The door 2 is pivotally supported by suitable hinges (not
shown) on the refrigerator cabinet for opening and closing movement
about a vertical axis adjacent one side edge of the door. An ice
storage receptacle 3 is supported within the freezer compartment
for receiving ice cubes produced by a suitable ice maker positioned
above the storage receptacle.
A horizontally disposed rotatable member 5 includes means for
conveying ice cubes stored in the receptacle 3 to a discharge
opening 6 (FIG. 2) in the front wall 7 of the receptacle. The
member 5 is rotatably supported on the front wall of the receptacle
for rotational movement about its longitudinal axis and includes a
feed section 8 containing, as described in the aforementioned
Alvarez patent, means in the form of a double blade screw or auger
9 (FIG. 2), which periodically discharges a batch of ice cubes, for
example, a batch of two ice cubes, through the opening 6 during
each half rotation of the rotatable member 5.
At the front end of the receptacle 3 or, more specifically,
overlying the opening 6, there is provided an ice crusher section
generally indicated by the numeral 11. This crusher section
includes, as shown in FIGS. 2 and 3 of the drawing, an outlet 12 at
the bottom thereof through which either crushed or cube ice is
discharged into the inlet end of a passage 14 provided in the door
2, the outlet end of the passage terminating in a recess (not
shown) provided in the face of the door 2.
An extending portion 16 of the member 5 extending forwardly through
the wall 7 into the crusher section 11 adjacent and to one side of
opening 6 has mounted thereon a plurality of crusher blades 17
rigidly secured to the extension 16 and rotatable therewith. When a
double blade auger means is employed for conveying ice through and
from the feed section 8, the arms 17 extend on both sides of the
shaft or extension 16 and are offset approximately 90.degree. from
the front edges of the auger blades 9 as shown in FIGS. 2 and 3 of
the drawing.
Also mounted within the crusher section are anvil means generally
indicated by numeral 19 which are positioned on the opposite side
of the shaft extension 16 from the opening 6 and which cooperate
with the blades 17 to provide crushed ice.
The angular relative positioning of the blades 17 relative to the
forward edges of the auger blades 9 is such as to normally permit
ice cubes discharged through the opening 6 to fall freely to and
through the outlet 12 during each half rotation of the member 5 in
a counterclockwise direction, as viewed in FIGS. 2 and 3 of the
drawing. In other words, each time a forward edge of the auger
blade 9 rises to the level of the lower edge 20 of the opening 6,
the blades 17 are in a substantially vertical position so that ice
cubes may fall from the opening 6 freely through the path between
the crusher blades 17 and the opposite wall of the crusher section
and exit through the outlet 12 before contact by the rotating
blades.
For the purpose of selectively providing either ice cubes or
crushed ice, there is provided within the crusher section 11 an
interceptor means generally indicated by the numeral 21 pivotally
supported at its upper end, as indicated by the numeral 22, for
movement between an ice intercepting position illustrated in FIG. 2
of the drawing and a retracted position illustrated in solid lines
in FIG. 3 of the drawing. The member 21 is of an arcuate plate-like
shape and is preferably provided at its front surface with a pair
of spaced vertically extending ridges 23 which aid in directing the
ice pieces onto the blades 17 when the member 21 is in the
intercepting position. The ridges are positioned on the member 21
at locations intermediate the blades 17 as illustrated in FIG. 1 of
the drawing. The lower ends 25 of these ridges project a short
distance beyond the lower edge of the main body of the interceptor
member 21.
In its retracted position, the member 21 is in a position removed
from the path of the crusher blades so that ice cubes discharged
through the opening 6 will fall freely through the discharge
opening 12 before they can be picked up by the crusher blades.
However, in its advanced or ice intercepting position illustrated
in FIG. 2 of the drawing, the arcuate member is positioned
generally below the opening 6 but out of the actual path of the
rotating crusher blades. However, as the lower end of the member 21
extends to a position generally below the axis of rotation of the
blades it prevents ice cubes falling from the opening 6 from
reaching the outlet 12. As a result, the blades 17 pick up these
ice cubes and carry them into crushing engagement with the anvil
means 19. A crank arm 28 having a portion 29 loosely engaging a
hook-shaped projection 30 on the rear of the member 21 serves to
move the member 21 into and out of its intercepting position.
All of the above-described components of the ice dispenser and
crusher are broadly common to the crushed and cube ice dispenser of
the Alvarez patent, and reference is made to that patent for a
detailed description thereof.
In accordance with the present invention, the crusher is designed
to produce either coarse or more finely divided crushed ice. To
this end, the anvil means 19 comprises a stationary set of arms or
fingers 36 and a movable set of arms or fingers 37. The stationary
arms 36 of nylon or the like are integrally formed with a base 38
suitably supported on the side wall 39 of the crusher housing
opposite the interceptor plate 21. As shown in FIG. 1 of the
drawing, a finger 36 is positioned midway between the adjacent
blades 17, and the spaces 40 between these fingers are sufficiently
wide to provide a coarse grade of crushed ice. The fingers 36 also
include arcuate or concave upper surfaces 41 extending
substantially from the wall 39 to a point beyond the axis of the
shaft 16 so that, as will be seen in FIG. 2 of the drawing, ice
pieces carried into engagement with the surfaces 41 will be cradled
on these surfaces for crushing by the blades 17.
The movable blades 37 form part of a unitary structure of nylon or
the like including a base 43 pivotally supported as indicated at 44
on the exterior of the crusher housing with the fingers 37
extending into the housing below the stationary blades 36. The
fingers 37 are also of an arcuate shape matching the arcuate lower
surfaces 45 of the stationary arms or fingers 36. A spring 47
biases the movable fingers to a position below the stationary arms
36 as shown in FIG. 2 of the drawing and, when in this position,
the arms 37, as shown in FIG. 1, are wider than the stationary arms
36 and, in effect, narrow the spaces through which crushed ice can
pass to the outlet 12 thereby providing a finer grade of crushed
ice. More specifically, the movable fingers 37, which preferably
are arranged directly below and overlapping the arms 36, are spaced
closer together to provide the finely divided crushed ice. In
addition, these arms 37 are in the path of the rotating crusher
blades 17 so that the coarse crushed ice produced by the stationary
fingers 36 passes downwardly through the spaces between the
stationary fingers and is further crushed during passage of the
rotating blades 17 through the narrower spaces between the movable
fingers 37.
Since finely divided ice tends to accumulate within the anvil means
and as such accumulation may cause displacement of the interceptor
member 21 which is biased to its intercepting position only by the
spring 50, the interceptor member 21 is locked in its operative
position when the crusher is set for finely divided ice. To this
end, the tips 25 of the ridges 23 are designed to overlap the tips
of the movable arms 37 so that these arms will support the lower
end of the interceptor member 21 during operation of the crusher
for the production of finely divided ice pieces.
The positioning of the interceptor plate 21 and the movable arms 37
may be electrically controlled by the user using, for example,
suitable solenoids such as the solenoid described in the
aforementioned Alvarez patent for positioning the interceptor
means. Preferably, there is employed a mechanical means for
selecting ice cubes or two grades of crushed ice.
A suitable mechanical means more particularly claimed in
Application Ser. No. 348,940 (U.S. Pat. No. 3,824,805) is designed
to mechanically interconnect the interceptor plate 21 and the
movable arms 37 in such a manner that a single control lever 54
rigidly supported on the lower end of the pivoted base 43, plus
suitable operating means operable from the exterior of the
refrigerator door 2, can be employed by the user to make the
desired ice selection.
To this end, there is provided a tie strip or link 55 having one
end pivoted as indicated at 56 on the crank arm 28 for operating
the interceptor plate 21 and having the other end provided with a
slot 57 for slidably receiving a pin 58 connected to the movable
crusher arm structure. The slot 57 provides a lost motion
connection with the movable arm structure so that in one position
of the control lever 54, that is the position in which the pin 58
engages the right-hand end of the slot 57 as viewed in FIG. 2, the
movable arm structure 37 is in a position to provide finely crushed
ice with the tips 37 of the movable arms supporting the lower end
of the interceptor plate 21.
Movement of the control arm 54 to a point where it is substantially
in engagement with the opposite end of the slot 57 retracts the
movable arms 37 to provide a coarse grade of crushed ice while the
interceptor plate 21 remains in its intercepting position as
indicated in the dotted lines of FIG. 3. Further movement of the
control arm 54 to the left, as viewed in FIG. 3, causes the strip
55 through the crank arm 28 to move the interceptor plate against
the biasing action of spring 50 to its full-line position
illustrated in FIG. 3 of the drawing, so that ice cubes or pieces
can fall directly from the discharge opening 6 to the outlet 12. In
the operation of this mechanism, the biasing spring 47 which
normally biases the movable arms 37 to their finely crushed ice
operating position also, through the link 55, positions the
interceptor plate in its ice intercepting position.
Means for exteriorly positioning the arm 54 for the selection of
either cube ice or crushed ice of two different grades comprises a
Bowden wire or push-pull cable 60 generally positioned within the
door 2 and having its outer end connected to a control knob 61
slidably supported within a guide 62 on the outer surface of the
door. The inner end of the cable 60 is connected to a rod 63
extending inwardly from the door 2 and slidably supported in a
guide 64. The rod 63 is of a length sufficient to engage a slot 65
in the control arm 54 when the door 2 is closed. Thus, movement of
the control knob 61 to its right-hand position, as viewed in FIG. 1
of the drawing, effects movement of the arm 64 to its left-hand
position, thereby positioning the control arm lever 54 to retract
the movable arms 37 and position the interceptor plate in its
full-line position, or inoperative, as shown in FIG. 3, for
delivery of ice cubes. Movement of the control knob 61 a short
distance to the left similarly moves the control rod 63 to position
the lever arm 54 for the delivery of coarse crushed ice. Further
movement of the control knob 61 to its extreme left-hand position
permits the rod 63 to become disengaged from the arm 54 so that the
spring 47 associated with the arm 37 positions the crusher
mechanism to provide finely divided crushed ice.
As will be noted from FIG. 1 of the drawing, when the door is open
or in a partially open dotted-line position, the rod 63 becomes
completely disengaged from the control arm 54. Hence, during each
door opening, the crusher mechanism is set by the spring 47 to
provide finely divided crushed ice. However, as the door is closed,
the rod 63 again engages the control lever 54 and moves the
dispensing mechanism to the position selected by the setting of the
control knob 61.
While there has been shown and described a specific embodiment of
the present invention it will be understood that it is not limited
thereto and it is intended by the appended claims to cover all such
modifications as fall within the true spirit and scope of the
invention.
* * * * *