U.S. patent number 3,608,514 [Application Number 04/813,113] was granted by the patent office on 1971-09-28 for automatic dishwasher indicator for cleaned or soiled dishes therein.
Invention is credited to Edward L. Dunn.
United States Patent |
3,608,514 |
Dunn |
September 28, 1971 |
AUTOMATIC DISHWASHER INDICATOR FOR CLEANED OR SOILED DISHES
THEREIN
Abstract
A two-state fluid tilt or position indicator in which a casing
is provided with a midwall to catch dishwasher fluid during the
dishwashing operation, and discharges such fluid caught within a
first chamber of the casing into a second chamber, and said second
chamber of the casing discharging the dishwasher fluid into the
dishwasher chamber, or other exhaust means, when the door of the
dishwasher is opened and tilt sufficiently forward to evacuate the
fluid from said first chamber. Also provided is a float in the
first chamber, the float having a stem with a diversity indication
of discs thereon, and an indicator window so that one disk is
presented through the window when the one chamber is containing the
dishwasher fluid and the other disk is presented through the
indicator window when said one chamber has been discharged of said
fluid.
Inventors: |
Dunn; Edward L. (La Mesa,
CA) |
Family
ID: |
25211486 |
Appl.
No.: |
04/813,113 |
Filed: |
April 3, 1969 |
Current U.S.
Class: |
116/228; 73/322;
134/113 |
Current CPC
Class: |
A47L
15/4418 (20130101); G01F 23/58 (20130101) |
Current International
Class: |
G01F
23/58 (20060101); G01F 23/30 (20060101); G01f
023/00 () |
Field of
Search: |
;116/118
;73/307,309,319,322 ;134/113 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Capozi; Louis J.
Claims
What is claimed is:
1. A dishwasher indicator, comprising a casing mounted within the
dishwasher door and having a top passageway and a bottom passageway
extending therefrom in fluid communication with the inside of the
dishwasher, an aperture in the top wall thereof, a single chamber
mounted against the inner wall of said casing between said
passageways forming a space between the tops of said casing and
said chamber, a float within said chamber, and a stem indicator
extending from the top of said float through said aperture, said
stem indicator being raised to a certain level above said casing
only upon completion of the dishwashing operation due to the
entrance of water into said chamber by means of said top
passageway, the fluid in said chamber flowing into said casing when
the door is tilted from the upright position and flowing from said
casing into the dishwasher by means of said lower passageway when
the door is swung back to the upright position.
Description
The invention relates to an improved indicator apparatus for
showing that a dishwasher has been run to wash the dishes therein,
and more particularly the invention relates to indicator means
showing that the dishwashing cycle has been completed in a
dishwasher, or that the cycle has not been completed.
Another object of the invention is to indicate by means whether the
dishes in a dishwasher have been cleaned or are still soiled.
A further feature of the invention is to provide a casing and unit
in which the device forms a two-state fluid tilt indicator that may
be portably mounted on a dishwasher door.
The above and other objects and advantages of the invention will
become apparent upon full consideration of the following detailed
description and accompanying drawings in which:
FIG. 1 is a cross-sectional view of a dishwasher door showing the
preferred embodiment of the invention, a portion of which is shown
in cross section;
FIG. 2 is a cross-sectional view similar to that of FIG. 1 and in
which the door of the dishwasher has been tilted downwardly;
FIG. 3 is an enlarged detail view of the window indicator and the
disks on the float stem thereof.
Referring now to the drawings, there is shown a dishwasher 10 of
conventional construction having a top 12 and a door 14, having a
front wall 16 and a rear wall 18. Intermediate the top and bottom
edges of the door 14 and in the rear or inner wall 18, there is a
fluid-receiving opening 20 in which dishwasher fluid passes, as
shown by the arrow 22, into a chamber 24 formed in the casing 28
and a midwall 30 therein. In the chamber 24, there is a float body
34 which rises upon the inflow of dishwasher fluid into the chamber
24. From the top of the float 34 is a stem arrangement 36 which may
be of zigzag or bellcrank configuration, as shown, and which slides
through convenient apertures 38, 40, 42.
There are provided on the uppermost portion of the stem, a pair of
differentially indicated disks 48, 50; one may be red and the other
may be green. In the front wall 16 of the door 14, there is
provided a window indicator 54 in alignment with the disks 48 or 50
depending upon whether the float 34 is in the upper or the
lowermost position in the chamber 24. For example, when there is no
water in the chamber 24, indicating that the dishes have not been
washed by the dishwasher fluid, then the float 34 is in the
lowermost position as shown in FIG. 1.
When the water has been splashed into the opening 20, as shown by
arrow 22, to fill the chamber 24, float 34 then rises to an upper
predetermined position in the chamber 24 to raise the stem 36 so
that the disk now is presented through the indicator window 54.
This is shown in FIG. 2. When the door is tilted forward, also as
shown in FIG. 2, water or the dishwasher fluid is poured out of the
chamber 24 into the chamber 64, and when the door is returned to
its upright position, water is flushed from the chamber 64 into the
dishwasher.
Additional embodiments of the invention in this specification will
occur to others and therefore it is intended that the true spirit
of the invention be limited only by the appended claims and not by
the embodiments described hereinabove. Accordingly, reference
should be made to the following claims in determining the true
spirit of the invention.
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