U.S. patent number 3,675,810 [Application Number 05/020,974] was granted by the patent office on 1972-07-11 for receptacle for waste material.
This patent grant is currently assigned to SAID Thorvald S. Ross, Jr., by said Dante V. Consalv. Invention is credited to Dante V. Consalvo, Thorvald S. Ross, Jr..
United States Patent |
3,675,810 |
Ross, Jr. , et al. |
July 11, 1972 |
RECEPTACLE FOR WASTE MATERIAL
Abstract
The invention is a combined holder-container system and the
container thereof, for the compaction, storage, segregation, and
eventual disposal of compacted trash. It comprises an outer holder,
an inner removable and disposable container, a removable protective
inner shield or liner, and an apertured cover adapted to prevent
unwanted egress of glass shards, etc.
Inventors: |
Ross, Jr.; Thorvald S.
(Manchester, MA), Consalvo; Dante V. (Everett, MA) |
Assignee: |
SAID Thorvald S. Ross, Jr., by said
Dante V. Consalv (N/A)
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Family
ID: |
21801638 |
Appl.
No.: |
05/020,974 |
Filed: |
March 19, 1970 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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813477 |
Apr 4, 1969 |
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Current U.S.
Class: |
220/495.08;
100/229A; 220/908; 312/1; 220/826; 220/837; 220/825 |
Current CPC
Class: |
B65F
1/08 (20130101); Y10S 220/908 (20130101); Y02W
30/60 (20150501) |
Current International
Class: |
B65F
1/04 (20060101); B65F 1/08 (20060101); B65d
025/00 () |
Field of
Search: |
;220/17,65,1T,29,20.5,44C,44E,85 ;206/63,5,19.5C,19.5D ;312/1 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Leclair; Joseph R.
Assistant Examiner: Garrett; James R.
Parent Case Text
This application is a continuation-in-part of U.S. patent
application, Ser. No. 813,477, now abandoned, filed Apr. 4, 1969.
Claims
Having described the invention, what is claimed is:
1. A receptacle for articles comprising an outer holder and a
removable cover therefor, the holder being adapted to receive
therein a separate container and the cover being provided with an
opening overlying the holder and the container, a plurality of
narrow parallel flexible fingers attached to the edges of the
opening and lying closely adjacent each other, the fingers
overlying the opening to flexibly close it, said fingers comprising
a pair of elongated rectangular members having short sides and long
sides, the fingers being made by slits extending from one long side
toward the other long side, and approximately parallel to the short
sides, the slits being alternately of unequal lengths, there being
two of said members one each attached to opposite edges of said
opening, means for locating the cover with respect to the holder so
that the opening is centered thereover, and an open-ended tubular
removable liner adapted to fit within the holder beneath said
opening and also to fit within said container, the liner extending
to the bottom of the container thereby to protect the container
from rupture.
2. The receptacle of claim 1 in which at least a portion of the
cover is transparent, thereby permitting a view into the receptacle
interior when the cover is in place on the holder.
3. The receptacle of claim 1 in which said liner has an upper
portion and a lower portion, the portions meeting at the
mid-portion of the liner, the upper portion tapering inwardly from
an upper portion of the liner to the mid-portion, and the bottom
portion flaring outwardly from the mid-portion to the bottom end of
the liner.
4. The receptacle of claim 3 in which said liner comprises two
tubular members in engagement in end to end relationship at said
mid-portion, and including means for holding the members together
in said engagement.
5. The receptacle of claim 3 in which the upper end portion of said
liner is provided with a generally radially extending flange, and a
skirt extending upwardly from the outer perimeter of the flange,
said holder being provided with a generally radially extending rim
adapted to receive thereagainst said flange when the liner is in
the holder, and means for detachably fastening said flange, and rim
together to hold the liner in the holder, said cover having a
downwardly extending skirt portion dependent from the periphery
thereof and adapted to fit into engagement with said upwardly
extending skirt to position the cover on the holder.
6. The receptacle of claim 3, in which the upper end portion of the
liner flares outwardly to provide a funnel to guide material into
the holder.
7. A receptacle for articles comprising an outer holder and a
removable cover therefor, the holder being adapted to receive
therein a separate container and the cover being provided with an
opening overlying the holder and the container, a skirt extending
downwardly from the cover adjacent and surrounding the periphery of
the opening, a plurality of narrow, parallel, flexible fingers
attached to the edges of the opening and lying closely adjacent
each other, the fingers overlying the opening to flexibly close it,
means for locating the cover with respect to the holder so that the
opening is centered thereover, and an open-ended tubular removable
liner adapted to fit within the holder beneath said opening and
also to fit within said container, the liner extending to the
bottom of the container thereby to protect the container from
rupture, the liner being slightly tapered in shape with the top end
of the liner being smaller in cross-section than the bottom end of
the liner, thereby to facilitate withdrawal of the liner from the
container when the latter is filled with articles, and said liner
being provided with an outwardly extending flange around its bottom
rim adapted to fit within the bottom of said container to locate
the liner centrally with respect thereto, the top rim of the liner
having an inwardly extending flange adapted to encircle said skirt
to locate the top of the liner centrally with respect thereto.
Description
BACKGROUND OF THE INVENTION
In today's times, trash disposal is already a world-wide problem
and threatens to become more so. Part of this problem is in the
space occupied by empty containers such as cardboard boxes, tin
cans and bottles. The space so occupied by the average household
creates problems in the home itself, particularly crowded apartment
houses and residential areas, as well as in the carting of such
waste to municipal dumps and in the burying of the waste.
Easy-to-use, convenient, relatively low cost, and fool-proof means
are therefore greatly needed to answer these problems.
At many municipal dumps, heavy industrial type compactors are in
use. Obviously, these are not suitable for home use. Many towns and
cities have trash collecting trucks which attempt to compact the
trash as it is collected. These trucks are expensive and the labor
associated with their use is also expensive to say nothing of the
cost of maintenance.
With the rapid decrease of available free land for public dumps,
due to the need for land for dwellings and industry, the burial of
uncompacted trash is an inefficient use of the land available.
Burning is not an answer, because of air pollution.
Therefore, trash which is fully compacted at the home will answer
many of the above problems, provided the means for compaction, and
storage pending pick-up by dump trucks, are easy to use, long
lasting, and relatively efficient. Operation of the dump trucks
will be facilitated, with lessened costs, and more efficient use of
land for burial will be obtained.
OBJECTS OF THE INVENTION
It is the general purpose and object of this invention, therefore,
to provide a composite means for holding trash during compaction, a
disposable part of this means being a container removable for
holding the compacted trash while awaiting pickup and during
transport to the dump.
Another object of the invention is the provision of holder of the
above class in which cover means are provided for the insertion of
compacting means, the cover being provided with means to prevent
the escape of flying glass, etc.
Still another object of the invention is the provision of an inner
shield means for preventing the disruption of the disposable
container during trash compaction, the shield being readily
removable.
A further object of the invention is the provision of a disposable
container for trash, or for other articles or materials, which is
made from one piece of flexible material in such manner as to
provide reinforced handholes at the top, and reinforced sides and
bottoms.
Yet another object of the invention is the provision of a container
of the above class which is made from a blank by folding and gluing
operations, the gluing being done by self-sticking adhesives
already present on predetermined surfaces of the blank.
Other objects, purposes and advantages of the invention will be in
part obvious from the description which follows, and in part
pointed out specifically.
In the accompanying drawings in which are illustrated several
embodiments of the invention and embodiment of inventive features
thereof:
FIG. 1 is a front elevation, in section, of one embodiment of this
invention;
FIG. 2 is a side elevation, partly in section, of the FIG. 1
embodiment;
FIG. 3 is a top plan view of the cover for the FIG. 1
embodiment;
FIG. 4 is a top plan view of a portion of the FIG. 3 cover;
FIG. 5 is an end elevation, partly in section, of the FIG. 4
portion;
FIG. 6 is a plan view, partly in section, of a flexible finger
element for the FIG. 3 cover;
FIG. 7 is a sectional end view, taken in the direction of sight
lines 7--7 on FIG. 6;
FIG. 8 is a sectional view, enlarged, of a portion of the FIG. 6
element, taken in the direction of sight lines 8--8 on FIG. 6;
FIG. 9 is a plan view showing one face of a box blank from which is
to be folded the FIG. 10 disposable container of this
invention;
FIG. 10 is an illustration of the container of this invention
folded up from the FIG. 9 blank, and ready for insertion in the
outer holder shown in FIGS. 1 and 2;
FIG. 11 is a sectional elevation taken in the direction of sight
lines 11-11 on FIG. 10;
FIG. 12 is a sectional elevation taken in the direction of sight
lines 12--12 on FIG. 10;
FIG. 13 is an illustration of the container of FIG. 10 shown with
the container as loaded with trash (not shown) and top portions
folded downwardly to close the container and to provide reinforced
hand-holes for lifting;
FIGS. 14, 15 and 16 are, respectively, the side elevation, end
elevation, and top plan view of a liner used in this invention;
FIGS. 17, 18, and 19 are, respectively, side elevation, end
elevation, and top plan view of the liner of a second embodiment of
this invention;
FIG. 20 is an end view of a further embodiment of an element of the
invention;
FIG. 21 is a front elevation, partly in section, of another
embodiment of the invention;
FIG. 22 is a corner portion of one unit of a two piece inner liner
of this FIG. 21 embodiment;
FIG. 23 is a side elevation, partly in section, of the FIG. 21
embodiment;
FIG. 24 is an exploded view of a latch mechanism used in the FIG.
21 embodiment to hold an inner shield to the outer holder of the
FIG. 21 embodiment;
FIG. 25 is a bottom view showing in greater detail the latch
mechanism of FIG. 24;
FIG. 26 is a flexible finger element for the cover of the FIG. 1
embodiment;
FIG. 27 is an end view, in section, of a portion of the FIG. 26
flexible finger element taken in the direction of sight lines
27--27 thereon; and
FIG. 28 is an end elevation, partly in section, of the FIG. 26
flexible element, taken in the direction of sight lines 28--28
thereon.
Throughout the drawings, similar reference characters indicate
corresponding parts. Also, throughout the drawings, dimensions of
certain of the parts as shown in the drawings may have been
modified and/or exaggerated for the purpose of clarity of
illustration.
Referring now to FIGS. 1, 2, and 3, there are shown several views
of a first embodiment of this invention. It comprises an outer
holder indicated generally by numeral 2 having a rectangular
cross-section, a bottom 4, front and end walls 6, 8, 10, and 12 and
a turned-over lip 14 around the top perimeter. For convenience,
although not necessary, the holder 2 should be tapered from top to
bottom, as shown, to facilitate nesting holders in storage in
warehouses, stores, etc. prior to sale. Holder 2 is made of a
strong durable material such as plastic or metal, high density
polyethylene being an example of a moldable synthetic resin that is
preferable to use, or the holder can be of aluminum or sheet
steel.
Fitted over the top of the holder is a cover 16, shaped as a
truncated hollow tetrahedron, having the slanting sides 18, 20, 22
and 24. Dependent the inside of each of the four corners formed
between the sides 18-24 is a short L-shaped section 26 of four
sections 26 being so positioned as to nest within the corners
formed by the walls 6-12, thus assisting in retaining cover 16 in
place. Cover 16 may be made of high density polyethylene, the same
as holder 2, in which case the sections 26 will be molded as
integral parts thereof. If cover 16 is metal, then sections 26 may
be fastened thereto by welding or riveting in conventional
manner.
Referring to FIGS. 3, 4, and 5, cover 16 is provided with a
rectangular aperture defined by edges 30, 32, 34, and 36. A skirt
38 depends from the top of cover 16, and two of the upper edges of
the skirt sides are fastened to the cover adjacent the edges 32 and
36, while the other two upper edges of the skirt are attached to
the cover back from the opposed edges 30 and 34, thus leaving short
lips 40 and 42 as shown. (See FIGS. 1 and 2) The skirt may
conveniently be molded as an integral part of cover 16 if the
latter is molded, or may be metal (if cover 16 is metal) and
attached thereto by riveting or welding. Skirt 38 is long enough so
that when the cover 16 is in place on holder 2, the lower rim of
the skirt extends below the lip 14.
Each of lips 40 and 42 has notches 44 and 46 therein, respectively,
whose purpose is to aid in holding protective cover fingers in
place, as will now be described. These notches are shaped with
mouths narrower than their interiors.
Referring to FIGS. 6, 7, and 8 (and to FIG. 3 for assembly) with
cover 16), there is shown one of a pair of finger guards. Guard 50
as shown is a single piece fabricated construction, made from
translucent polyurethane. It has an edge rib 52 provided with a
lengthwise channel 54. Channel 54 is interrupted by filled in
portions or dividers 56 at two places, these filled-in portions or
dividers being shaped with their facing edges 58 slanted toward
each other as shown. Dividers 56 are spaced apart slightly less
than the separation of notches 44 on the one lip 40 and notches 46
on the other lip 42. When the edge rib 52 (i.e., the channel 54) is
slid over the lip 40 or 42, the guard 50 is stretched slightly to
align the respective notches and dividers. The dividers will then
enter the notches, and the slanting sides of the dividers will
retain them in the shaped notches.
Each of the guards tapers, as shown in FIG. 7, from edge rib 52 to
the other edge 60. The guards are slit to provide a plurality of
adjacent pairs of fingers 62, each pair being separated by long
slits 64 extending from rib 52 to edge 60, and each pair being
divided into its two fingers by shorter slits 66. In this manner, a
predetermined curvature of the fingers is obtained with the fingers
being most flexible toward edge 60 of the guard, and stiffening
quickly but continuously and flexibly toward rib 52. (See FIG.
2)
It will be noted that the guards are duplicates, two being used,
and that when in place on cover 16, the fingers overlap. When,
therefore, a ram is inserted into the holder and container to crush
cans, boxes, and bottles placed therein, the ram can be moved
freely in and around the aperture in the cover 16, with the fingers
62 folding flexibly around the ram and overlapping at other places,
to prevent any flying glass or other particles from escaping
through the cover.
Referring now to FIGS. 9-13, there is first shown the box blank 70
for making the folded box or container 72 of FIG. 10. Blank 70 is
formed of corrugated board and comprises the two end walls 74 and
76 joined integrally to the front and back walls 78 and 80, the
board being creased or scored at the joints to provide fold lines
82, 84, and 86. At the upper edges of the front and back walls 78
and 80 are respectively attached the flaps 88 and 90, each of these
integral with their respectively attached walls. Fold creases or
scorings 92 and 94 are provided as shown. Integrally joined to the
flaps 88 and 90 are the end portions 96 and 98, portion 96 being
connected integrally with end wall 74 and portion 98 being
connected to end wall 76. Fold lines (creases or scorings) 100,
102, 104, 106, and 108 are provided.
Integrally attached to front wall 78 is inner bottom 112, via fold
crease or score 114. Integrally attached to back wall 80 is outer
bottom 116, a fold crease or score 118 being provided. Attached
integrally to one edge of outer bottom 116 is an end wall
reinforcing flap 120, a suitable fold crease or score 122 being
provided. The reinforcing end 120 is cut loose from inner bottom
112 and end wall 74 by means of slits 124. Integrally attached to
the outer edge of outer bottom 116 is another end wall reinforcing
flap 126. Fold crease or score 128 is provided where shown, and end
piece 126 is cut loose from end wall 76 by slit 130.
A gluing flap 132 is integrally attached to end portion 98 and end
wall 76. A fold crease or score 134 is provided where shown.
Flap 88 is provided with a slot 140 to act as a hand or finger
hole, and the upper edge is provided with slots 142. A central
notch 144 is provided, and two fold creases or scores 146 are
provided extending diagonally across the portion 88 from its lower
corners to meet notch 144.
In similar manner, upper portion 90 is provided with hand-hole slot
150, edge slots 152, central notch 154 and fold creases or scores
156 from the lower corners to the central notch.
Notches 142 and 152 are so dimensionsed as to be the same size as
the hand holes 140 and 150. They are positioned on their respective
edges so that when the end portions 96 and 98 are bent inwardly and
downwardly along fold lines 100, 102, 106, and 104, 134 and 108 to
close the container, (see FIG. 13) notches 142 align with slot 140
to form a three-layered hand-hole slot; and similarly notches 152
align with slot 150. At this point, the triangular portions 158 of
portion 88 will be flush with the remainder portion 160, and
triangular portions 162 will be flush with remainder portion 164.
This construction gives greatly added strength to the portions
158-160 and 162-164 for lifting a filled container.
For gluing purposes, it is preferred that the requisite surfaces be
coated either with a pressure sensitive adhesive, covered with a
strippable protective paper which can be pulled off at the time of
assembly. Or, and this is the more suitable structure, the
so-called self-sealing adhesives can be used, (often called
cohesives) which dry to a non-tacky condition so as to be dry to
the touch, and yet two surfaces each coated with such an adhesive
will bond to each other. The particular surface adhesive is not a
part of this invention, and selection of the proper kind is within
the skill of the art.
If the cohesive type is used, then the following surfaces of the
blank of FIG. 9 will be coated. (Assume that as viewed in FIG. 9
the viewed surface of the drawing is hereinafter called the front
surface of any portion, and the back of the drawing sheet is called
the back surface.)
The following front surfaces will be coated: 120, 116, 126, flap
132, portions 88 and 90, and the top edge portion of cover portion
96, (where it overlaps cover portion 98 to seal the container).
The back surfaces which will be coated are: 76, 74, 112, (those
edge parts of wall 78 and portion 88 which the flap 132 will
overlie) and the top edge of cover portion 98 which will underlie
the edge of cover 96.
Thus, the following advantages will be noted with respect to the
container 72: For strength, it has a double bottom and double end
walls. When used, it is first in its fully opened position shown in
FIG. 10, but when filled to the level of fold lines 92, 94, 106,
and 108, the cover portions 96 and 98 can be folded inwardly and
downwardly, their edges overlapping for sealing; while at the same
time the triangular portions 158 and 162 join, respectively
portions 160 and 164 to provide added strength to these portions
and reinforce the hand holes. Furthermore, individual sealed
containers can be stacked one on top of each other merely by
bending the portions 160 and 164 outwardly, or inwardly to lie one
on top of each other.
Referring now to FIGS. 14, 15, and 16, a removable and reusable
shield, or liner 170 is shown. This comprises a rectangular, hollow
tube molded of a strong, tough synthetic plastic such as Noryl, the
trade name of a polyphenylene oxide, or Lexan, the trade name of a
polycarbonate, both of these materials being available from General
Electric Company. It has a shape similar to that of the container
72, but it is smaller so that it will fit therein. The liner 170
comprises the four walls 172, 174, 176, and 178 and is open at both
ends. It has a hand hold 180 at the top. It is to be noted that the
liner or shield tapers from top to bottom, being larger at the
bottom than the top. The taper found suitable is about 1.degree. -
3.degree. to the vertical to facilitate nesting liners in storage
warehouses, stores, etc.
A flange 182 projects outwardly from the bottom edge of the liner,
the outside dimensions of this flange being such as to fit nicely
within container 72. The flange thus spaces the bottom of the liner
in the container. An inwardly extending lip 184 is provided at the
top edge of the liner, so dimensioned that the skirt 38 will fit
nicely down past the lip edges (see FIG. 1). Thus, the lip serves
(together with skirt 38 and cover 16) to space the liner centrally
at the top of the open container.
Instead of the liner 170, a second embodiment 190 thereof (and
therefore a second embodiment of the invention) is shown. Again, it
is a tapered, rectangularly shaped, molded tube, having the walls
192, 194, 196, and 198. The tube is tapered, as shown, being larger
at the bottom than at the top. A lip 200 extends outwardly to
facilitate lifting the liner and/or withdrawing it from a filled
container. It also reinforces the top of the liner. (See FIGS. 17,
18 and 19.)
In this embodiment, the liner is also reinforced laterally and
longitudinally by a plurality of circumferential ribs 202 and 204,
and a plurality of vertical ribs 206 and 208, ribs 206 being on the
end walls, and ribs 208 being on the front and back walls. These
several ribs also serve to space the liner inside the container.
The dimensions of the top of the liner are such that skirt 38 fits
nicely down inside its top. As in the other liner, approximately at
1.degree. - 3.degree. taper to the vertical has been found to work
satisfactorily.
Referring to FIG. 20, another form or embodiment of the guard 50 is
shown. In this instance the guard comprises a main sheet portion
212 which is slit to provide fingers just the same as the fingers
62 are provided in FIG. 6. The back edge portion of sheet 212 is
solid, and to the top and bottom surfaces of it are fastened, by
means of a suitable adhesive, the top and bottom reinforcing layers
210. Layers 210 extend beyond the rear edge of sheet 212 in order
to provide a channel similar to the channel 54 of FIG. 6 and for
the same purpose. Two dividers 214, similar to dividers 56, are
provided on the back edge of sheet 212 to enter notches 44, as in
the case of the FIG. 6 form of guard.
To use the system, a container 72 is placed in the holder 2, the
liner 170 is placed in the container, and then the cover 16 is
placed over both, sections 26 fitting down into the holder to guide
and centralize the cover in position, and skirt 38 fitting into the
liner as described above. As thus assembled, it will be noted that
the upright portions 88, 90, 96, and 98 of the container extend
well up into the cover, so that the aperture of the cover overlies
the open top of the container. Also, the skirt 38 fits down into
the top of the container.
When thus assembled, a can or bottle to be crushed is put into the
container, passing readily through the flexible fingers 62. A ram
is then thrust into the enclosure and the can or bottle is crushed
by repeated blows. Successively, other waste cans, tins, bottles,
boxes, etc. may be crushed or compacted.
As this continues, it will be noted that the lateral resultant of
forces occurred in compaction are exerted against the liner 170 and
not against the sides of the container 72. This prevents these
forces from rupturing the walls of the container, and thus is able
to resist compacting forces.
When the container is filled with compacted trash up to the above
specified horizontal fold lines, or even some distance above, the
liner 170 is withdrawn. The "negative" draft given to the walls
facilitate this withdrawal. Upon withdrawal, the compacted trash
can now spread sideways, thus lowering the level of the top of the
trash down to, at least, the fold lines of the top closure
portions.
The container is withdrawn, and the top is sealed as shown in FIG.
13. The sealed container is now stored to await collection by a
dump truck.
Referring now to FIGS. 21-28, there is shown yet another embodiment
of the invention.
As before, a holder comprising a base 220, and a cover 222 are
provided each of which will now be described. The base 220 is made,
preferably, of high density polyethylene or other strong, tough,
synthetic plastic, but it could be made of a metal such as steel or
stainless steel. The base has at its top the outwardly turned lip
or flange 224 which, as will be described below, serves the
function of providing a seat for an inside liner as well as
strengthening the top portion of the base. As before, the base has
a bottom 226. Preferably, the base has a slight taper as shown.
The lid 222 is, as before, a four-sided, open-ended shell having
the downwardly tapering sides 228 from which depend a skirt 230
adapted, as shown and as will be described below, to fit over (full
lines in FIG. 23) or within (dotted lines 229 in FIG. 23) a skirt
upturned at the end of an inner liner. The cover is provided at the
top with an opening 232 from which depend the two interior shields
234, one at each end of the opening. Mounted across the upper lips
forming the opening 232 are the pair of flexible finger structures
236 each of which is constructed the same, and as shown in FIGS.
26-28, comprises a comb-like structure having a back 238 and a
plurality of closely adjacent but separate fingers 240. The
material of the finger structures 236 is flexible, tough,
elastomerlike material such as Neoprene or the equivalent, or can
be made of a flexible plasticized synthetic resin if desired. The
cuts in structure are, as in the previous embodiments, so made that
one cut 242 is shorter than its adjacent cut 244 so that both a
sufficient degree of flexibility of the fingers will be provided
and also to reduce the tendency of adjacent fingers to cross over
each other. The finger structures are attached to the rim
conventionally, by providing a metal clamp strip 246 lying over the
back portions of each finger assembly, and then through suitable
holes in the strips 246, the back portions of the finger structures
and the lip 235 of the cover, rivets are inserted and headed over
to fasten the finger elements so that the fingers thereof overlap.
As before, by this means and in conjunction with the shields 234,
entrance into the inside of the outer holder is provided through
the flexible fingers 240, and these fingers are sufficiently
flexible to close around the shaft of the instrument used to
compact rubbish within the interior of the holder. At the same
time, chips are prevented from flying outside of the container.
The entire cover 222 is made of a strong material such as Lexan
previously described, or its equivalent. At least a portion of the
cover 222 needs to be at least translucent, and preferably
transparent, in order to see the interior of the receptacle to
facilitate compacting rubbish and trash therein.
As in the previous embodiments, an inner container 72 is provided,
made and put together as is the inner container 72 shown in FIGS.
10-13 from the blank shown in FIG. 9. Since the container for this
embodiment is the same as that previously shown, no further
description will be given at this point.
However, the liner of this embodiment is different from the liner
previously shown. The liner of this embodiment (FIGS. 21 and 22),
indicated generally by numeral 250, is a two-piece assembly having
an upper piece 252 and a lower piece 254. While a mold could be
made for molding this two-piece assembly as a one-piece unit,
nevertheless, such a mold would be relatively expensive and for
this reason the preferred embodiment shown and described is
presented.
The draft of the top portion 252 is positive (as used in this
application to mean that the liner is slightly smaller in
cross-section at its bottom portion 256 than it is at the upper end
258 of the upper liner). Contrary-wise, the portion 254 has a
negative draft as shown. That is, the bottom end 260 of this bottom
portion is larger in cross-section than the cross-section of the
upper end 262.
In this embodiment, as previously, the liner is rectangular in
cross-section and the bottom end 256 and upper end 262 of the
respective pieces are so sized that end 256 fits snugly down into
the end 262. When once in place, these end portions are held
together securely by means of the bolts 264. In view of the nature
of the drafts, a reference to FIG. 23 will indicate that the corner
portions of the upper end 262 of the bottom portion 254 of the
liner are preferably relieved to make it easier to fit the
respective ends together.
Referring now to FIGS. 21 and 23, the uppermost end portion of the
top piece 252 of the liner flares outwardly to form a funnel
portion 268, and the upper edge of the funnel portion first extends
outwardly to form the flat flange portion 270 and then turns
upwardly to form the skirt 272. The flare of the funnel portion 268
is sufficient to permit the assembled liner to drop down into the
container 72 to come to rest approximately on the bottom thereof,
at which point the flange 270 will lie against the outwardly
extending flange 224 on the top of the holder base 220. On each of
opposite sides of the flange 270 is mounted a post 274 of
conventional nature, the post being riveted as shown in FIG. 24 to
the flange 270. See FIGS. 23 and 24. A reinforcing plate of steel
or tough plastic 276 is preferably provided on the top of flange
270 in each instance, this plate being fastened to flange 270 by
means of the rivets 278. Post 274 is provided with a suitable
shouldered structure as illustrated in FIG. 24, so that when the
end of the post is riveted over as at 280, the post will be
securely fastened to the flange 270.
The post 274 is provided with the peripheral groove 282 and a head
284. Provided in the flange 224 of holder base 220 is a hole 286
sized to receive the post 274 and the head 284. A reinforcing plate
288 is fastened to the underside of the flange 224 by means of the
rivets 290 in conventional manner. Pivoted to the plate 288 is the
finger-latch 292, pivoting being done by a properly shouldered stud
294. A suitable spring retaining finger 296 projects downwardly
from the plate 288 as shown, and one end of a spring 298 is held in
the finger 296. The spring takes a turn around the shank of the
pivot stud or post 294, and the other end is retained in a suitable
finger 300 on the latch plate 292. As viewed in FIG. 25, the spring
298 biases the latch plate 292 counterclockwise about its mounting
post 294. A recess 302 is provided extending inwardly of latch 292,
this recess being sized to permit the latch to enter the groove 282
to lock the post 274 in the hole 286. A conventional stop pin 304
is mounted to the plate 288 in order to maintain the latch plate
292 in proper position, when the latter is not engaging the post
274.
By this means, the liner is detachably locked to the top of the
outer holder. The purpose of this is to prevent the liner from
rising upwardly due to the negative draft of the bottom portion
254, when material is being compacted within the liner.
On two sides of the funnel portions of the upper part of the liner
268 are provided, if desired, a pair of handles 310.
The operation of this last embodiment is similar to the previous
one, in that to assemble the device, a container 72 is first
prepared in accordance with the instructions given above, and is
then inserted in the outer holder 220. The liner 250 is assembled
by fastening the portions 252, 254 together. The assembled liner is
then inserted into the container 72 and comes to rest with the
outer flange 270 resting against the flange 224, as shown in FIGS.
21 and 23. In this position, posts 274 will each have extended
through its respective hole 286 as described above, and the latch
plates 292 will have engaged into the recesses 282 to lock the
liner 250 securely to the holder 220. The cover 222 is then placed
over the upstanding skirt 272 of the liner. (If desired, the cover
222 may be of such cross-sectional size and shape that the
downwardly extending skirt 230 fits easily but not too loosely
inside the upstanding skirt 272.) It will be found that the cover
is of sufficient weight and should be of a close enough fit so as
to retain itself in position on the holder 220. In this assembled
position, the fingers 240 and 242 will now overlie the liner 250
and also inner container 72, and when trash is put into the
receptacle through the opening 232, it will fall into the
container. At that time, the compacting means described above may
be used to flatten down and pack together the trash.
When the compacted trash has reached about the level of the
reinforcing sides 126, the cover 222 is removed, and the latch
plates 292 are swung outwardly to release the latch posts 274. The
inner liner can then be withdrawn, the negative draft on the bottom
portion 254 facilitating this withdrawal. Thereafter, the container
72 may be removed, carrying with it the compacted trash. The
container top may then be folded down for storage first (if
desired) and later disposal. Thereafter, a new container 72 is
prepared and placed in the outer holder 220. The liner 250 is
placed down within the container as described above, and the
catches are snapped in place. The cover 222 is then placed on top
of the skirt of the liner and the device is again ready to have
trash compacted therein.
As in the previous embodiments, it is the liner that makes the
embodiment practical and effective. Without the liner, the outward
force exerted by the trash as it is being compacted would rupture
the sidewalls of the container. If the container, in an attempt to
prevent this, is made a close fit against the inside walls of the
outer holder 220, it will be found that the outward force of
compaction will jam the walls of the container against the walls of
the holder to the extent that it will be difficult to pull the
container from the holder. Thus, the liner serves the very definite
function of protecting the walls of the container from rupture
during compaction of the trash, and to facilitate easy removal of
the container. Also, the liner is so shaped that it may be easily
withdrawn (due to its negative draft) from the container when the
proper level of compacted trash is reached. The instant liner is
also advantageous in that because of the two drafts, it will be
found possible for the store owner (or the warehouse or
distributor) to stack the separate parts to occupy a minimum of
space, as compared to a liner which is all one piece. The reliefs
266 at the upper corners of the bottom portion 254 of the liner,
will also assist in such stacking.
It is obvious that from the above, the liner must be of a strong
material, and preferably is made of a strong tough plastic such as
Noryl (trademark of General Electric Company) which is a synthetic
resin of the modified phenylene oxide type. Or, if desired, it
could be made of steel or other strong metal. However, it will be
found that there are suitable plastics on the market such as that
mentioned above, which will be entirely suitable for the purpose.
If desired, the top and bottom halves of the liner may be of
different materials. For example, the bottom half may be of the
above-mentioned Noryl material and the top half may be of a high
density polyethylene or other equivalent material. The reason for
thus distinguishing the two parts of the liner is that it is the
bottom half which takes the force of compaction in a lateral
direction, and not the top half.
It has already been mentioned that the fit of the downwardly
extending skirt 230 of the top of the device should be preferably a
snug fit over or within the upstanding skirt 272 of the upper end
of the liner. It is pointed out that this fit is not critical.
The end shields 234 are shown as integral molded parts of the top
222. Of course, if desired, these end shields could be made
separately and attached to the top by suitable rivets, etc. The
integral molded construction is, however, the preferred one.
In view of the above it will be seen that the several objects of
the invention are achieved and other advantageous results
attained.
It is to be understood that the invention is not limited in its
application to the details of construction and arrangement of parts
illustrated in the accompanying drawings, since the invention is
capable of other embodiments and of being practiced or carried out
in various ways. Also, it is to be understood that the phraseology
or terminology employed herein is for the purpose of description
and not of limitation.
As many changes could be made in the above constructions without
departing from the scope of the invention, it is intended that all
matter contained in the above description or shown in the
accompanying drawings, shall be interpreted as illustrative and not
in a limiting sense, and it is also intended that the appended
claims shall cover all such equivalent variations as come within
the true spirit and scope of the invention.
* * * * *