U.S. patent number 3,563,422 [Application Number 04/715,009] was granted by the patent office on 1971-02-16 for pouring device for a bottle.
This patent grant is currently assigned to Daniel Montgomery & Son, Limited. Invention is credited to Charles B. Cruikshank.
United States Patent |
3,563,422 |
Cruikshank |
February 16, 1971 |
POURING DEVICE FOR A BOTTLE
Abstract
A pouring device for facilitating smooth liquid flow from a
bottle by establishing a path for liquid flow from the bottle and a
further path for the ingress of replacement air into the bottle.
The device has a central tubular portion with an aperture at the
inner end and an outwardly flared conical portion at the bottle
opening. A flange at the bottle opening attaches the device to the
bottle itself. Ports in the outwardly flared conical portion permit
outward flow of liquid in an axial direction while permitting the
ingress of air through the central portion of the device and hence
into the bottle through the inner opening.
Inventors: |
Cruikshank; Charles B.
(Glasgow, SC) |
Assignee: |
Daniel Montgomery & Son,
Limited (Glascow, SC)
|
Family
ID: |
10021010 |
Appl.
No.: |
04/715,009 |
Filed: |
March 21, 1968 |
Foreign Application Priority Data
|
|
|
|
|
Mar 22, 1967 [GB] |
|
|
13,332/67 |
|
Current U.S.
Class: |
222/478; 222/547;
222/570 |
Current CPC
Class: |
B65D
47/06 (20130101) |
Current International
Class: |
B65D
47/06 (20060101); B65d 023/04 (); B65d
025/48 () |
Field of
Search: |
;222/478,479,564,571,109,542,547,566,567,568,569,570 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Reeves; Robert B.
Assistant Examiner: Handren; Frederick R.
Claims
I claim:
1. A device for a bottle comprising a central tubular portion
having an inner end terminating in an end plate formed with an air
vent and an open pouring end, the inner end being arranged to enter
the neck of a bottle, and the pouring end being a cone portion
having, at the end thereof closest to the said inner end, a small
diameter substantially equal to the diameter of the said inner end
and extending to a large diameter substantially equal to the inner
diameter of the neck of the bottle, said central tubular portion
presenting at the large diameter end a radially outwardly extending
flange, the periphery of which is joined to a cylindrical portion
extending to the side of the flange in the direction towards the
small diameter end of the pouring portion, the end of the
cylindrical portion remote from the flange being formed with an
inwardly projecting annular bead, engageable with an annular groove
in the neck of the bottle, the portion of the central tubular
portion between the flange and said inner end presenting formed
integral therewith an annular conical skirt projecting in a
direction towards said inner end and projecting radially outward to
an outer diameter which is less than the said large diameter of the
cone portion of the pouring end, and the cone portion of the
central tubular portion between the skirt and the flange being
formed with ports, said ports being of sufficient length in the
axial direction along the said cone portion such that each port has
a projected area in the axial direction to permit flow through said
ports in said axial direction.
Description
The subject of this invention is a pouring device intended to be
inserted in the neck of a bottle to facilitate the pouring of the
liquid contents of the bottle.
Difficulty is normally experienced in pouring the liquid contents
of a bottle especially where the neck of the bottle is small in
diameter because the liquid trying to leave the bottle by gravity
hinders the inward movement of air which tries to enter the bottle
to replace the effluent liquid. The result is that the liquid tends
to leave the neck of the bottle in a spasmodic stream. It then
becomes difficult to dispense liquid, particularly where the liquid
is to be dispensed in accurate quantities. It is an object of the
present invention to provide a pouring device which, when inserted
in the neck of the bottle, provides separate paths for the outgoing
liquid and the incoming air and thus makes it possible for liquid
leaving the bottle to do so under continuous streamline-flow
conditions.
A device according to the invention consists of a central tubular
portion having an inner end and a pouring end, the inner end being
arranged to enter the neck of a bottle and the pouring end being
flared outwardly and presenting near that end a radially extending
flange the periphery of which is joined to a cylindrical portion
extending to the side of the flange away from the flared end of the
central tubular portion, the end of the cylindrical portion remote
from the flange being formed with an inwardly projecting annular
bead, the portion of the central tubular portion between the flange
and the inner end presenting an annular skirt projecting in a
direction towards said end, and the portion of the central tubular
portion between the skirt and the flange being formed with
ports.
Preferably the central tubular portion is coned from a large
diameter nearly as great at the flange as the diameter of the neck
of the bottle to which the device is to be fitted to a smaller
diameter at the point where the skirt is presented.
The flared end of the central portion is preferably of a diameter
at least as great as that of the neck of the bottle to which the
device is to be fitted.
The inner end of the central tubular portion preferably terminates
in an end plate formed with an aperture smaller in diameter than
the central tubular portion.
A practical embodiment of the invention is illustrated in the
accompanying drawing which is a diametral section through the neck
of a bottle with the pouring device in place and the usual cap
fitted to close the bottle. In the drawing, 1 denotes a central
tubular portion one end of which is flared outwardly at 2 and
presents near that end a radially extending flange 3 the periphery
of which is joined to a cylindrical portion 4 extending backwardly
from the flange 3 in the direction away from the flared end, the
end of the cylindrical portion 4 remote from the flange 3 being
formed with an inwardly projecting annular bead 5. The other end of
the central tubular portion 1 i.e. the inner end 6 terminates in an
end plate 7 formed with an aperture 8. The portion of the central
tubular portion 1 between the flange 3 and the inner end 6 of the
central tubular portion 1 presents an annular skirt 9 projecting in
a direction towards the inner end 6 while the portion of the
tubular portion 1 between the skirt 9 and the flange 3 is coned as
at 10 and is formed with ports 11. The larger diameter of the coned
portion 10 is made to fit just within the neck 12 of the bottle to
which the device is to be applied. 13 denotes a cap of normal type
fitted to the neck 12 of the bottle and 14 denotes a pad of
resilient sealing material arranged to be pressed by the cap 13
into sealing engagement with the flared end 2 of the device.
In practice, the device is fitted to the neck 12 of a bottle with
the inner end 6 within the neck of the bottle and the flange 3
against the rim of the bottleneck. The cylindrical portion 4 then
fits over the bottleneck 12 and the annular bead 5 engages the
bottleneck in an annular groove formed behind the reinforcing ring
usually found on bottles. The device thus remains in place even
when the bottle is upended.
The bottle is sealed by screwing the usual cap 13 onto the bottle,
the annular ridge normally presented by the cap coming against the
flange 3 and pressing the flange into contact with the rim of the
bottleneck thus providing a seal. The resilient pad 14 located
within the cap 13 is compressed between the cap and the flared end
2 of the central tubular portion 1, thus providing an additional
seal.
To pour liquid from the bottle the cap 13 is removed and when the
bottle is upended liquid runs into the neck of the bottle and flows
through the ports 11 into the interior of the central tubular
portion 1 and runs out of the flared end 2. Even if the bottle
contains sufficient liquid to cover over the aperture 8 in the
inner end 6 of the central tubular portion 1 air can enter the
bottle since, because the aperture 8 is at a higher level than the
ports 11 when the bottle is upended the hydrostatic pressure at the
aperture 8 is less than the hydrostatic pressure at the ports 11
and air will tend to enter through the aperture 8 rather than
attempt to enter through the ports 11. The entering air and the
effluxing liquid are thus maintained separate so that pouring may
be performed in a continuous smooth stream. The presence of the
skirt 9 causes the velocity of the liquid flowing around the free
edge of the skirt 9 to increase in the constriction between the
free edge of the skirt 9 and the bottleneck thus making it more
difficult still for air to attempt to enter through the ports
11.
* * * * *