U.S. patent number 3,730,026 [Application Number 05/219,617] was granted by the patent office on 1973-05-01 for ring-style cap opener.
This patent grant is currently assigned to Matsumoto Metal Company Limited. Invention is credited to Haruo Matsumoto.
United States Patent |
3,730,026 |
Matsumoto |
May 1, 1973 |
RING-STYLE CAP OPENER
Abstract
A ring-style cap opener has a ring-shaped sheet metal element
including outer peripheral portion and a top portion. A cylindrical
portion depends from the center of the top portion. The lower edge
of each of the outer peripheral portion and the cylindrical portion
are bent toward each other, the lower edge of the outer peripheral
portion lying above the edge of the cylindrical portion. The bent
lower edge of the outer peripheral portion acts as a fulcrum, and
the bent edge of the cylindrical portion engages under the flared
edge of the crown cap for removing a cap from the bottle.
Inventors: |
Matsumoto; Haruo (Amagasaki,
JA) |
Assignee: |
Matsumoto Metal Company Limited
(Amagasaki-shi, JA)
|
Family
ID: |
11908601 |
Appl.
No.: |
05/219,617 |
Filed: |
January 21, 1972 |
Foreign Application Priority Data
|
|
|
|
|
Mar 10, 1971 [JA] |
|
|
46/16155 |
|
Current U.S.
Class: |
81/3.57; D8/40;
7/901 |
Current CPC
Class: |
B67B
7/16 (20130101); Y10S 7/901 (20130101) |
Current International
Class: |
B67B
7/00 (20060101); B67B 7/16 (20060101); B67b
007/16 () |
Field of
Search: |
;81/3.3,3.34,3.46R |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
183,821 |
|
Mar 1923 |
|
GB |
|
699,533 |
|
Nov 1953 |
|
GB |
|
Primary Examiner: Riordon; Robert C.
Assistant Examiner: Parker; Roscoe V.
Claims
What is claimed is:
1. A ring-style cap opener consisting of a ring-shaped sheet metal
formation having an outer periphery, a top and a cylindrical
formation depending from the center, the edge of the outer
periphery being bent downwardly so as to form a fulcrum edge to
bear against the top of a crown cap, and the lower edge of said
cylindrical formation being bent outwardly so as to form a hook
edge to lift the crown cap.
2. A ring-style cap opener according to claim 1 wherein the lower
edge of said outer periphery is curved inwardly.
3. A ring-style cap opener according to claim 1 further comprising
an exterior sheet metal formation which is larger in size than and
the same in form as the said interior sheet metal formation and
covering said sheet metal formation, the lower edge of the outer
periphery of said exterior sheet metal formation being bent
inwardly under said fulcrum edge so as to form the fulcrum to bear
against the top of a crown cap.
Description
This invention relates to a cap opener for engaging and removing a
crown cap from the mouth of bottles in general, or more
particularly to a ring-style cap opener with which a crown cap can
be removed by a simple operation without it being necessary to
place it in a specific position against the crown cap.
With a conventional cap opener, it is necessary to place it in a
specific position against a crown cap; and there is a problem of
keeping it properly positioned, that is to say, it more often than
not goes astray. Further, all conventional cap openers are far from
being shapely.
It is an object of this invention to provide at low cost a novel,
improved cap opener which overcomes these structural defects of cap
openers of the existing types and is simple to operate.
Another object of the invention is to devise a cap opener with
which a crown cap can be removed without it being necessary to
apply it in a specific position against the crown cap, when using
it, and which, seen from every angle, presents a good
appearance.
The main feature of the cap opener according to the present
invention is that it can be mass-produced by a simple method and at
low cost, inasmuch as it has a structure in which the lower edge of
the outer periphery of a ring-shaped sheet metal formation is bent
inward so as to form the fulcrum edge to bear against the top of a
crown cap, while the lower edge of a cylindrical formation
depending from the center of said ring-shaped formation, the
formations having been formed from a single piece of stock, is bent
outward so as to form a hook edge to lift the crown cap.
While the aforesaid objects are accomplished by means of an
improved combination of the parts whereof the present invention
consists, their embodiment will be further clarified by the
accompanying drawings and by the description in detail which
follows.
According to the present invention, a cap opener consists of a
fulcrum edge, to bear against the top of a crown cap, which is the
lower edge, shaped as desired, of the outer periphery of a
ring-shaped sheet metal formation consisting of an outer periphery
and a top, and a hook edge, to lift the crown cap, which is the
lower edge, bent outward, of a cylindrical formation depending from
the center of the said ring-shaped sheet metal formation. The said
fulcrum and hook edges will clutch between them a crown cap
covering the mouth of a bottle, which will be removed by lifting
the hook edge by hand.
In the accompanying drawings,
FIG. 1 is a plan of a cap opener according to the present
invention.
FIG. 2 is a side view thereof.
FIG. 3 is a sectional view of the cap opener in use, sectioned
vertically at the line A--A of FIG. 1.
FIG. 4 is a side view, partly sectioned longitudinally, showing a
modified embodiment of a cap opener according to the present
invention.
FIG. 5 is a side view, partly sectioned longitudinally, showing
another embodiment of a cap opener according to the present
invention.
The invention will be better understood from the following
description taken in connection with the accompanying drawings.
An improved cap opener according to the present invention is made
up, as aforesaid, of a ring-shaped sheet metal formation 1
consisting of an outer periphery l.sub.1, a top l.sub.2 and a
cylindrical formation l.sub.3 depending from the center of top
l.sub.2. The edge 2 of the outer periphery l.sub.1 is bent
downwardly while the lower edge 4 of said cylindrical formation
l.sub.3 is bent outward so as to respectively form a fulcrum edge
to bear against the top of a crown cap 9 and a hook edge to lift
the crown cap.
As is illustrated in FIG. 3, the fulcrum edge 2 of the cap opener
is placed against the top of a crown cap 9 while the hook edge 4 is
hooked on to the lower edge of the periphery of said crown cap; the
crown cap will be easily removed by lifting the hook edge 4 of the
cap opener.
Further, a magnet 5 is inserted into a metallic receptacle 6, which
is fitted into the cylindrical formation l.sub.3 from the back of
the cap opener. This offers a convenient way for storing the cap
opener, preventing it from going astray, for it may be magnetically
hung on an appropriate place at hand when not in use.
Still further, the top l.sub.2 of the ring-shaped sheet metal
formation is provided with a sunk step 7, on which may be fitted,
for example, a label printed with the name of a manufacturing firm
for advertisement or a marking plate 8 die-pressed with patterns to
improve the appearance of the cap opener; or said sunk step 7 may
be utilized as a glass stand.
Whereas in the example as shown in FIG. 3 the lower edge 2 of the
outer periphery 1.sub.1 of the ring-shaped sheet metal formation
has a simple, straight-down form, in a modified embodiment of the
invention as illustrated in FIG. 4 the outer periphery 2 is curved
inward so as to form a circular arc, whereby there are afforded,
when removing a crown cap, a better grip on the cap opener and
surer grasp of the crown cap, thus permitting smoother
operation.
In another embodiment of the invention as illustrated in FIG. 5, an
interior sheet metal formation having a shape identical with the
ring-shaped sheet metal formation according to the example as
illustrated in FIG. 3 is covered on the outside with an exterior
sheet metal formation 10.sub.1 having a larger size and having an
identical shape, and the lower edge 2 of the said exterior sheet
metal formation is bent inward so as to form a fulcrum edge to bear
against the top of a crown cap. This will offer the best in the
manufacturing economy.
As is stated above, a cap opener according to this invention does
not require, unlike conventional cap openers, that it be used at a
specific position, but it can grasp a crown cap between any two
points, respectively on the two edges on one radius, thereby
permitting a quick and sure operation for removal of a crown
cap.
Another aspect of the invention is that the cap opener can be
profitably adapted for mass production at low cost, since the cap
openers can be pressed into shape substantially in one process from
sheet metal stock stamped out into the prescribed shape, thus
affording a high operational efficiency in manufacture.
Yet another aspect of the invention is that the cap has a beautiful
exterior, being designed so as to have elegant, flowing curves.
It is to be clearly understood that the scope of the present
invention is not limited to the aforementioned examples, but
variations and modifications to a certain extent shall come within
the scope of this invention.
* * * * *