U.S. patent number 3,667,637 [Application Number 05/097,573] was granted by the patent office on 1972-06-06 for safety device for flip cap closure.
This patent grant is currently assigned to Continental Can Company, Inc.. Invention is credited to Richard B. Bagguley, Carmen T. Mascia.
United States Patent |
3,667,637 |
Bagguley , et al. |
June 6, 1972 |
SAFETY DEVICE FOR FLIP CAP CLOSURE
Abstract
A flexible safety shield for preventing the opening of a flip
cap closure until the shield is depressed.
Inventors: |
Bagguley; Richard B. (Dolton,
IL), Mascia; Carmen T. (Westchester, IL) |
Assignee: |
Continental Can Company, Inc.
(New York, NY)
|
Family
ID: |
22264096 |
Appl.
No.: |
05/097,573 |
Filed: |
December 14, 1970 |
Current U.S.
Class: |
215/225 |
Current CPC
Class: |
B65D
50/045 (20130101) |
Current International
Class: |
B65D
50/04 (20060101); B65D 50/00 (20060101); A61j
001/00 (); B65d 055/02 () |
Field of
Search: |
;215/7,9 ;220/85 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Hall; George T.
Claims
What is claimed is:
1. A container flip cap closure assembly including a neck attached
at one end of a container and closure cap hingedly connected to the
neck, a safety device comprising a shield seated in the end of said
container, an opening in said shield through which said closure cap
extends, said shield being in the form of a dome having a height so
that said closure cap is recessed therein to prevent access to said
closure cap and thereby hinging movement of said closure cap from a
closed position on said neck, said shield being flexible whereby
said dome may be depressed so that said closure cap is accessible
and may be hingedly displaced out of said closed position.
2. The invention as defined in claim 1 wherein said opening is
defined by a downwardly depending wall reinforcing said dome about
said closure cap.
3. The invention as defined in claim 2 wherein said dome is
substantially hemispherical.
4. The invention as defined in claim 3 wherein a ledge projects
inwardly from the lower edge of said depending wall defining said
opening, said ledge underlying said closure cap.
Description
BACKGROUND OF THE INVENTION
The present invention relates to safety closures and more
particularly to a device for preventing inadvertant opening of a
cap covering the dispensing opening of a container.
The safety closure device of the present invention is intended
primarily for use with caps of the type which are hingedly
connected to a neck as to be insertable and removable from an axial
opening in the tubular neck that serves as a product dispensing
opening. These caps are generally identified as flip caps.
Flips caps are rigidly attached by means of the neck to one end of
a container. A container may store an inherently dangerous product
such as poison or products which when reacting with atmosphere
create an exposive force within the container. Lye is an example of
a product having these characteristics.
Flips caps have been used as closures for products of this type.
However, flip caps have the disadvantage that they can be easily
tampered with and readily opened by children. Also, in the event a
reaction is taking place in the container, the flip cap structure
readily yields under the force of an exposive reaction within the
container so that the product sprays out the can. This is
inherently dangerous to the user.
SUMMARY OF THE INVENTION
By the present invention, it is proposed to provide a safety
closure device for flip cap closures which overcome the
difficulties encountered heretofore.
This is accomplished generally by the provision of a flexible
shield which is snuggly and removable seated within an upstanding
peripheral wall at the upper end of the container. The shield
includes means overlying portions of the flip cap which prevent
opening of the latter until removal of the shield by flexing of the
shield out of seating engagement with the wall.
BRIEF DESCRIPTION OF THE DRAWING
FIG. 1 is a prespective view of a container having a flip cap
closure and a safety shield thereon embodying the structure of the
present invention;
FIG. 2 is a top plan view of the structure shown in FIG. 1;
FIG. 3 is a fragmentary perspective view of the container shown in
FIG. 1 with a safety shield in its removed position; and
FIG. 4 is a cross sectional view taken generally along the lines
4--4 of FIG. 2.
DESCRIPTION OF THE PREFERRED EMBODIMENT
Turning now to the FIGURES, there is shown a container 10 including
a container body 11 having a bottom end closure 12 and a top end
closure 13. Seated in an axial opening 14 formed in a recessed
panel 16 of the top end closure 13 is a flip cap 17.
The flip cap 17 is of more or less standard structure and includes
a neck 15 having an enlarged lower end 18. A groove 19 is formed in
the lower end 18 and receives a curled flange 21 for retaining the
flip cap 17 on the end closure 13. The upper end of the neck is an
enlarged tapered section 22 which terminates at its lower end in a
projecting annular shoulder 23. The shoulder 23 provides a latch
lip for latching a cap 24 more fully to be described
hereinafter.
Extending from one side of the lower end 19 of the neck is a hinge
strap 25 which hingedly connects the cap to the neck 15. The cap
top 24 includes a peripheral skirt 26 and an outwardly projecting
nose 27 diametrically opposite the hinge strap 25. The nose 27
provides a lifting latch for lifting the cap. As shown, the cap
skirt 26 defines a recess 28 which is bounded at its lower end by
an inwardly projecting annular flange 29. An outer annular flange
30 on the skirt 26 lies co-planar with the flange 29.
In the closed position of the cap as shown, the flange 29 underlies
the annular shoulder 23 so that the cap 18 is snuggly and firmly
seated about the tapered end 22. To lift the cap, it is only
necessary to grasp the nose 27 and pull the cap 17 upwardly to
release the ledge 29 from the shoulder 23.
For protecting the flip cap 17 and preventing tampering, there is
provided a flexible safety dome 31 which is made from a thin sheet
of plastic material. The dome 31 is sized so as to be seated on the
end closure with the bottom edges portions snuggly engaging the end
closure chuck walls 32. As shown, the dome may be also provided
with a base 31a which underlies the flange 21 on the closure neck
15.
A recessed circular opening 33 is axially formed in the dome 11 and
is defined by a downwardly depending flange 34. Projecting into the
opening 33 is a horizontal ledge 35. A radially extending slot 36
extends into the opening 33 and accommodates the width of the
hinged flap 24. A second radial slot 37 disposed diametrically
opposite the slot 36 accommodates the nose 27.
As shown, the ledge 35 is located in close proximity to the flange
29 along the lower edge of the cap 17. Moreover, the come 31
extends sufficiently high so that the lower portion of the cap 17
is recessed therein. In fact, the lower edge of the nose 27 is
disposed in the slot below the dome 31 so that it is not possible
to gain gripping access on the nose 27. The cap in this manner is
retained, locked or latched on the neck 15.
The dome 31 which is made from a flexible material may be flexed
and manipulated by depressing downwardly so that the dome clears
the underside of the cap flange 30 bounding the nose 27. The nose
27 may then be grasped by the fingers so as to be lifted from
latching engagement with the flange 29 whereby the contents may be
emptied from the container.
* * * * *