U.S. patent number 3,825,150 [Application Number 05/283,218] was granted by the patent office on 1974-07-23 for waste receptacle having liner bag holders.
This patent grant is currently assigned to Rubbermaid Sales Corp.. Invention is credited to William D. Taylor.
United States Patent |
3,825,150 |
Taylor |
July 23, 1974 |
WASTE RECEPTACLE HAVING LINER BAG HOLDERS
Abstract
A molded waste receptacle having integral resilient tabs formed
in its side walls and adapted to be sprung inwardly by pressing on
their exterior surfaces for engaging under and pinching the
periphery of a liner bag between the tabs and the adjacent
receptacle wall.
Inventors: |
Taylor; William D. (Wooster,
OH) |
Assignee: |
Rubbermaid Sales Corp.
(Wooster, OH)
|
Family
ID: |
23085057 |
Appl.
No.: |
05/283,218 |
Filed: |
August 23, 1972 |
Current U.S.
Class: |
220/495.08;
D34/1; 220/908; 220/908.1 |
Current CPC
Class: |
B65F
1/06 (20130101); B65F 1/16 (20130101); Y10S
220/908 (20130101) |
Current International
Class: |
B65F
1/16 (20060101); B65F 1/04 (20060101); B65F
1/06 (20060101); B65d 025/14 () |
Field of
Search: |
;220/1T,63R,DIG.25,17,85R,65 ;248/95,99-101 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Price; William I.
Assistant Examiner: Man-Fu Moy; Joseph
Attorney, Agent or Firm: Hamilton, Renner & Kenner
Claims
I claim:
1. A waste receptacle having at least one wall forming an upper rim
portion, opposed resilient tabs formed in said upper rim portion
and having their lower portions joined to said wall, side edge
portions of the tabs and the adjacent wall being serrated, said
tabs normally substantially in the plane of said wall, and bendable
inwardly thereof to allow insertion behind them of a marginal
portion of a liner bag in open position within said receptacle,
whereby said tabs when released will pinch said liner bag marginal
portion against adjacent edges of said wall.
2. A waste receptacle as in claim 1, in which the receptacle is of
molded plastic material and the tabs are integral therewith.
Description
BACKGROUND OF THE INVENTION
Modern methods of handling waste materials frequently involve the
use of liner bags in the waste receptacles so that when full the
liner bags can be removed and disposed of and replaced with new
bags, thereby maintaining the waste receptacles clean and avoiding
the necessity of handling loose and exposed waste materials.
Plastic film liner bags are readily available in a variety of sizes
but it is difficult to hold the film liner bag in open position
within the receptacle, particularly when the receptacle is made of
smooth plastic material, as the film liner bags slide easily over
the smooth surfaces of the receptacle. Attempts have been made to
make the bags long enough to fold down around the upper rim of the
receptacle, but these require extra film material and the part
folded over is unsightly.
It has also been proposed to provide a resilient ring fitting
inside of the top rim of the receptacle over which the film bag is
folded inside of the receptacle, but this involves the expense of a
separate part which is apt to be lost or misplaced.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide a waste
receptacle having novel and improved integral means for holding a
liner bag in open position therein.
Another object is to provide a waste receptacle having improved
integral means for quickly and easily gripping the marginal edge
portion of a liner bag in open position within the upper portion of
the receptacle.
A further object is to provide a waste receptacle having improved
integral means for tightly gripping the marginal edge portion of a
plastic film liner bag in open position within the receptacle.
A still further object is to provide a waste receptacle having
improved resilient liner bag holding means which are easily
manipulated by unskilled persons selectively to grip and detach the
marginal edge portion of a liner bag in open position within the
receptacle.
These and other objects are accomplished by the improvements
comprising the present invention, a preferred embodiment of which
is disclosed by way of example in the accompanying drawings and
described in detail herein. Various modifications and changes in
details of construction are comprehended within the scope of the
appended claims.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view of a waste receptacle having the novel
liner bag holding means.
FIG. 2 is a vertical section on line 2--2 of FIG. 1, showing a
liner bag in open position therein.
FIG. 3 is a plan sectional view on line 3--3 of FIG. 2.
FIG. 4 is an enlarged partial interior elevation, partly broken
away, showing the marginal portion of the liner bag held by the
improved holding means.
FIG. 5 is an enlarged partial exterior elevation of the parts shown
in FIG. 4.
FIG. 6 is a partial perspective view, partly in section, showing
the manner of applying the improved holding means to the marginal
edge portion of a liner bag.
FIG. 7 is a sectional view on line 7--7 of FIG. 4.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The receptacle shown generally at 10 in FIGS. 1 - 3 is rectangular
in shape and has four walls, two side walls 11 and two end walls
12, and a bottom 13. However, it will be understood that the
invention is applicable to receptacles of various shapes, including
round or rounded shapes. The receptacle 10 has an outwardly flared
top portion on which a pair of tiltable lids 14 are mounted in a
usual manner for swinging downwardly when an object is dropped
thereon, but the invention is applicable to receptacles having a
variety of tops or covers or to an open top receptacle.
Preferably, the receptacle body is molded of a suitable plastic
material, such as low density polyethylene, so that the walls 11
and 12 have a substantial amount of resiliency. The lids 14 are
preferably of harder, more rigid plastic material, such as high
density polyethylene or polystyrene.
As indicated in the drawings, four opposed tabs 15 are formed in
the upper rim portion formed by the receptacle walls. As shown,
these tabs 15 are formed adjacent to the corners, two in each end
wall 12. However, the tabs could be formed in the side walls 11,
and in the case of a circular wall the tabs would be formed
opposing each other at spaced-apart locations.
As best shown in FIGS. 4 - 6, the tabs 15 are preferably
substantially rectangular in shape and are integrally joined to the
walls 12 along the bottom of the rectangle. The tabs may be formed
by inverted U-shaped slots 16 in the wall, thereby spacing the top
edge 17 and side edges 18 of the tabs from the adjacent edges of
the wall 17' and 18' of the wall. The tabs 15, being formed from
the walls 12, normally lie in the planes of the walls.
Preferably, the lower portions of the side edges 18 of the tabs 15
and the adjacent wall edges 18' are serrated as shown at 19 and
19', respectively, for a purpose to be described.
A plastic film liner bag indicated at 20 inserted into the
receptacle is held in open position therein by passing the upper
marginal portion of the liner behind the tabs in the manner shown
in FIGS. 4 - 7. As shown in FIG. 6, the operator presses a tab at
one corner inwardly of the wall 12 with one hand and folds the
marginal portion 20' of the liner over and behind the tab with the
other hand. When the pressure on the tab is released, the
resiliency of the tab along its bottom portion causes it to spring
back toward its normal position in the plane of the wall, thus
pinching the marginal portion of the film liner and gripping it
between the side edges 18 and 18' of the slots.
The serrated edge portions 19 and 19' enhance the gripping action
and insure positive holding to overcome any tendency of the film to
slip due to its thinness. Obviously, the liner bag 20 can be
quickly removed by pressing inwardly on the tabs and lifting the
marginal portion of the bag upwardly over the tabs.
The improved waste receptacle having the novel integral tabs
provides an inexpensive means to quickly and easily apply and
detachably hold a liner bag in open position within the receptacle
by an unskilled person, without requiring any separate parts. The
liner bag is securely gripped regardless of its thinness and
smoothness, and substantially all of the bag is out of sight from
the exterior of the receptacle except for the small portions
passing behind the tabs.
* * * * *