U.S. patent number 3,763,773 [Application Number 05/207,324] was granted by the patent office on 1973-10-09 for trash compactor apparatus.
Invention is credited to Robert A. Clay.
United States Patent |
3,763,773 |
Clay |
October 9, 1973 |
TRASH COMPACTOR APPARATUS
Abstract
A household trash compactor operable by means of household water
supply and pressure.
Inventors: |
Clay; Robert A. (Del Rio,
TX) |
Family
ID: |
22770057 |
Appl.
No.: |
05/207,324 |
Filed: |
December 13, 1971 |
Current U.S.
Class: |
100/229A; 92/40;
100/269.04; 100/266 |
Current CPC
Class: |
B30B
9/305 (20130101); B30B 1/003 (20130101) |
Current International
Class: |
B30B
9/30 (20060101); B30B 9/00 (20060101); B30B
1/00 (20060101); B30b 001/32 () |
Field of
Search: |
;100/53,295,266,269A,229A ;29/454 ;92/34,37,47,40 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Wilhite; Billy J.
Claims
What is claimed is:
1. A trash compactor for connection to and operation with household
water supply and drain lines comprising:
a housing having an apparatus section at one end thereof and a
trash compaction section at the opposite end thereof,
a wall at each end of said housing,
opening means associated with said trash compaction section to
permit access to said compaction section to deposit trash therein
and to permit closing said trash section,
an expandable closed-ended, bi-sectional bellows member carried in
said apparatus section and having one end thereof engaged against
said end wall of said apparatus section,
said bellows formed of a resilient material and when expanded
forming two cylindrical sections each having the same diameter at
any point along their lengths,
a pressure plate engaged against the opposite end of said bellows
and being movable from said apparatus section into said compaction
section by said bellows when the latter is in expanded
condition,
tension spring means having one end thereof connected to said end
wall of said apparatus section and the opposite end thereof
connected to said pressure plate to bias said plate toward said end
wall of said apparatus section and thereby tend to maintain said
bellows in its contracted position,
a water control valve having water line connecting means to permit
a connection to said household water supply and having drain line
connecting means to permit a connection to said household drain
line, and
a water supply and drain line connected between said valve and the
side wall of one of said cylindrical sections of said bellows,
said valve having two positions, one of said positions permitting
water to flow from said water supply line to said bellows to fill
and expand said bellows to cause said pressure plate to move into
said compaction section to compact trash contained therein and the
other of said positions serving to shut off said water in said
water supply line and to open said drain line to cause water in
said bellows to be discharged into said household drain line by
said action of said tension springs contracting said bellows,
said housing being disposed in a vertical position with said
apparatus section located above said trash section,
said opening means including a drawer-like mounting of said
compaction section.
Description
BACKGROUND OF THE INVENTION
This invention relates to a household trash compactor which
utilizes household water supply and pressure to move and supply
compressive pressure to a pressure plate to compress trash in a
compression chamber which forms a part of the apparatus.
1. Field of the Invention
This invention is particularly directed to a trash compactor
employing an expansive flexible bellows which is simply constructed
and easily operated to provide a trash compactor which may be
manufactured and sold relatively inexpensively and which will be
acceptable to housewives who will normally operate the device.
2. Description of the Prior Art
There have been many trash compactors invented and patented;
however, none of these has gained very wide acceptance by the
public. For the most part, prior trash compactors have been
expensive to manufacture and could not be marketed at a price which
householders could afford or were willing to pay. In addition, the
prior devices had operating and control systems which were
complicated and therefore difficult to operate, service and/or
repair.
SUMMARY OF THE INVENTION
In accordance with the invention claimed, the trash compactor
disclosed is designed to be manufactured at relatively low cost so
it may be sold at a price householders are willing to pay; and
also, it is designed to be operated from the standard household
water supply and drain system in any home. Also, the apparatus, is
designed to be easily operated and serviced when necessary.
It is therefore one of the principal objects of this invention to
provide a trash compactor which is simple in design and may
therefore be manufactured and sold at relatively low cost.
Another object is to provide such a device which has relatively few
working parts, which parts are simple to operate, and simple to
maintain or replace when necessary.
Another object is to provide such a device which may be installed
in any household and which may be connected to the household water
supply and drain system for operation without complicated
installation procedures.
Another object is to provide a trash compactor which is simple to
operate.
Another object is to provide a trash compactor which has great
compressive capabilities so it will be able to compress and compact
any refuse, cans, bottles, and the like which are inserted in the
compression chamber.
A more specific object is to provide a trash compactor which
employs an expandable bellows connected by a single control valve
to the water supply system and the drain system of a home, wherein
water from the supply system may be directed into the bellows to
fill and expand it to move a pressure plate into the compression
chamber to cause refuse therein to be compacted.
Another specific object of the invention is to provide an apparatus
as described above wherein the operation of the control valve will
permit the water within the bellows to be drained into the
household drain system.
Another object is to provide a positive bias means to cause the
expanded bellows to be contracted and force the water therefrom
into the drain system when the control valve is in a position to
direct water into the drain.
These and other objects and advantages of this invention will
become more apparent as the description proceeds, and the features
of novelty which characterize this invention will be pointed out
with particularity in the claims annexed to and forming part of
this specification.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention may be more readily described by reference to
the accompanying drawing, in which:
FIG. 1 is a perspective view of a household kitchen cabinet sink
showing my invention installed.
FIG. 2 is a vertical sectional view on the line 2--2 of FIG. 1.
FIG. 3a is a central sectional view showing the bellows in
contracted condition and showing the two-way valve in position to
drain water therefrom.
FIG. 3b is similar view of the bellows in expanded position and
showing the two-way valve in position to close the drain and permit
water from the water supply line to fill and expand the
bellows.
FIG. 4 is a perspective view of a modified form of my invention
wherein the compressive pressure is applied horizontally rather
than vertically as in FIG. 1.
FIG. 5 is a vertical section view on the line 5--5 of FIG. 4.
FIG. 6 is a sectional view on the line 6--6 of FIG. 5.
FIG. 7 is a sectional view on the line 7--7 of FIG. 5.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring more particularly to the drawing by characters of
reference, reference numeral 10 indicates a cabinet having a sink
11 which has a water supply line 12 to the faucet 12', and a water
drain line 13 from the sink to a sewer.
The number 14 indicates, generally, my trash compactor which is
installed in the cabinet 10 adjacent to the sink 11, water supply
12 and drain 13 for convenience in making the necessary connections
thereto.
The trash compactor comprisss a housing 15 having an operating
mechanism section 16 and a trash compressing section 17 which are
of any suitable shape and size and which are connected by suitable
stress members 18--18 as shown. It is deemed apparent that the
housing 15 could be an integral unit, such as is shown in FIGS.
4-7, without departing from the spirit of the invention.
The trash compressing section 17, as shown in FIGS. 1 and 2, is the
lower section, and comprises a container or chamber 19 into which
trash 20 is placed to be compressed, and thus the container becomes
a compression chamber. The container 19 is preferably a drawer-type
structure, as shown, and is capable of being moved inwardly to a
close position and outwardly to an open position, as shown at 21,
by means of drawer slides or guides 22. As is deemed apparent, the
front 23 of the drawer may be of suitable design of the cabinet
10.
It is preferred that the container section be so constructed that a
trash bag 24 may be installed as a liner for the container and also
serves as the means to remove and hold the compressed trash for
disposal. The use of such trash bags is conventional in the
art.
The apparatus section of my device comprises a chamber 25 in which
an expandable bellows member 26 is carried, the bellows having one
end engaged against the end 27 of the housing 15, as shown.
The bellows member 26 is comprised of a plurality of stacked
expandable disc sections 28--28 joined by a narrow neck 29 to
permit the bellows to be expanded and contracted as shown
particularly in FIGS. 3a and 3b. The bellows may be made of any
suitable material such as rubber, plastic or the like.
The opposite end of the bellows 26 is supported on a pressure plate
30. The pressure plate 30 is carried by a plurality of tension
springs 31--31 which has the pressure plate 30 toward the end 27 of
the housing and tends to keep the bellows 26 in contracted
position, the purpose of which will become apparent.
The pressure plate 30 is of suitable size and shape to fit freely
in the trash container chamber 19 and can be moved into the chamber
to compress trash therein and can be retracted from the chamber to
permit trash to be inserted into the chamber.
The bellows 26 has a water connection 32 to which a flexible water
supply and drain line or hose 33 is attached at one end. The
opposite end of the water supply and drain line is connected to a
suitable two-way control valve 34. The control valve 34 has a
connection 35 to permit a water supply line 36 to be connected from
the household water supply line 12 so that water fron the supply
line 12 may be introduced into the bellows 26 when the valve 34 is
in the position shown in FIG. 3b. As shown in this figure, the
introduction of water into the bellows forces the bellows to
expand, moving the pressure plate against the tension of springs
31--31 away from the end 27 of the housing and into the trash
container chamber 19 shown in dotted lines in FIG. 2. The pressure
of the water in the household supply line connected with the
bellows applies compressive pressure to the pressure plate, as is
deemed apparent. The relatively large area of the bellows which is
under pressure and engaged against the pressure plate assures that
a very substantial pressure will be applied to compress trash
within the chamber 19, as the average household water pressure
would be in the neighborhood of 65-100 pounds per square inch.
In order to protect the compressors shown in the drawings against
excessive pressures, a safety valve 34a is provided between line 33
and drain lines 37-13. If pressure becomes excessive in line 33 or
in the bellows, the safety valve connects the pressure line through
valve 34a to drain lines 37-13 in a manner well known in the
art.
It is deemed apparent that the compressive pressure desired to
compress trash may be readily controlled by proper sizing of the
diameter of the bellows. It is even possible to supply special
larger diameter bellows for areas where household water pressure is
normally lower than average, and also to supply special smaller
diameter bellows for areas where household water pressures are
higher than average. One can also be assured, with my bellows
apparatus, that adequate compressive pressure may be obtained to
suit any requirements which may be encountered in trash
compression.
As shown, the two-way valve 34 has a drain line 37 connected
thereto which connects with the household drain line 13 at any
suitable location, preferably above the trap 38. With the valve 34
in the position shown in FIG. 3a, the bellows is connected to the
drain line 37 and water is shut off from the supply line 36. Thus,
the tension springs 31--31 begin immediately to contract the
bellows 26 and thereby water is forced from the bellows into the
drain lines 37-13 and the pressure plate 30 is retracted from the
container or chamber 19 into the apparatus section of the housing.
This permits the container section to be opened to receive more
trash for compaction, or to remove the bagged trash for disposal as
desired.
The two-way valve 34 has an operating handle 39 which preferably
extends above the countertop 40 of the cabinet 10 in a suitable
location, preferably near the rear wall of the cabinet, where it is
handy to reach yet out of the way from interfering with normal use
of the countertop. The valve handle may have its two positions
suitably marked, of course, such as "compress" and "release" or
other suitable wording, as desired.
FIGS. 4 through 7 show a modified form of my invention which may be
installed and operated in horizontal position rather than in
vertical position. This modified form of my invention is intended
for use in areas where space is not available for a vertical
installation which would normally require an area of the front face
of a cabinet. My modified form of the invention may be installed in
the open cabinet area under a sink, for example, where access is
easy through the conventional doors under a cabinet sink, or any
other suitable location. This form of the inventio requires much
less installation time and cost, and is very handy as many
households now have their trash container in this space under the
sink.
As shown in FIGS. 4 through 7 the modified form of the invention
includes a housing 50 having an apparatus section 51 and a trash
container section 52 similar to their counterparts in the invention
shown in FIGS. 1 through 4. The housing 50 has a lid 54 on its top
portion which is connected to the housing near the apparatus
section 51 by means of a hinge 55. A closure latch or catch 56 is
provided to permit locking the lid closed during the compression
cycle of the device.
The housing may be made of formed metal to facilitate the provision
of a plurality of pressure plate guides 57--57. The ends 58 and 59
of the housing are securely fastened as by welding to the body
portion 60 of the housing to withstand the compressive stresses
present during the trash compression cycle of operation.
Within the apparatus section, a bellows 61 similar to the bellows
26 is carried, and has a water supply and drain line 62 connected
thereto by connector 63. The line 62 connects to the two way valve
34 in the same manner and wtih the same function as previously
described for the line 33 and valve 34, and therefore it is deemed
unnecessary to again describe the connection and operation
features. As shown clearly in FIG. 4, the housing 50 has a slot 64
through which the connector 63 extends to permit the movement of
the bellows 61 in the apparatus section.
The bellows 61 is supported at each end in the apparatus section 51
by means of a U-shaped support member 65, one of which is fastened
to the wall 58 and one to the pressure plate 71 to engage and
support the opposite ends 66 and 67 of the bellows.
The bellows 61 is supported intermediate of its ends by means of a
U-shaped sliding support or guide 68 which embraces the lower half
of the bellows at the reduced portion or neck 69 thereof. The guide
68 has laterally extending ends 70 which extend into the pressure
plate guides 57, as shown, whereby the sliding support may move
with the bellows as the latter is extended and retracted.
As shown in FIG. 4, the pressure plate has dogs or ear-like
projections 72--72 which extend into the pressure plate guide slots
or grooves 57 to insure proper guiding of the reciprocable movement
of the pressure plate during operation.
Tension srings 73--73 are provided beteen the pressure plate 71 and
the end wall 58 of the housing to bias the bellows to contracted
position as previously described.
In operation of the modified form of the invention the latch 56 is
released so the lid 54 may be raised to permit trash to be inserted
into the compression section 52 of the compactor, the lid is then
closed and latched and the valve 34 may be moved into the
"compress" position to direct water under pressure into the bellows
61 to cause it to extend or expand to force the pressure plate 71
into the compression section to compact trash contained
therein.
It will be apparent to those skilled in the art that changes and
other modifications may be made to the trash compactor shown and
described herein without departing from the spirit of the invention
or from the scope of the appended claims.
* * * * *