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Патент USA US2849173

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Aug. 26, 1958
J. W.~SOFFER ETAL
2,849,163
DISPENSING VALVE HAVING DIP-TUBE SUSPENSION MEANS
Filed May 8, 1957
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INVENTORS
JACK
W-
SOFFER
EUGENE
H.
N EUPERT
3%”?
/
(,
!
.)
ATTORNEY
United States Patent U r"ice
1
2,849,163‘
Patented Aug. 26, 1958
2
of the container to pass through the dip-tube 32 into the
2,849,163
DISPENSING VALVE HAVING DIP-TUBE
SUSPENSION MEANS
Jack W. Solfer, St. Louis, and Eugene H. Neupert, Fergu~
son, Mo., assignors to Development Research, Inc.,
St. Louis, M0,, a corporation of Missouri
Application May 8, 1957, Serial No. 657,969
8 Claims. (Cl. 222-394)
7
?ow passage formed by the seal 14 and out of the con
tainer through the valve spout 21.
The tubular seal generally designated 14 includes a
sleeve portion 13, an enlarged body portion 15 on the
inner side of the mounting'cup 11, which body portion
terminates in an annular valve seating face 16. Radially
outward of the valve seating face 16 is an annular groove
17, whose inner wall consists of the enlarged body portion
15 and whose outer wall is an elastic tubular skirt 18
which extends down substantially below the valve seating
face 16, the outer surface of which is tapered slightly
inwardly and downwardly. At the base of the sleeve por
tion 13 and extending radially outward therefrom sub
This invention relates to improvements in dispensing 15 stantially beyond the ?exible annular skirt 18 is an an
valves for pressure dispensers, and particularly in means
nular sealing ?ange 19 presented ?at against the inner
for securing a dip-tube in ?ow communication with such
surface of the mounting cup 11.
valves. Reference is made to ‘co-pending application
Within the annular groove 17 at the under surface of
Serial No. 577,680, ?led April 12, 1956, now Patent No.
the seal 14 is received the outwardly-turned upper rim
2,831,618, issued April 22, 1958 relating to the general 20 27 of a hollow nipple generally designated 28 having be
type of valve for which the present invention is particu
neath the rim 27 a substantially rigid cylindrical wall 29
larly suitable.
terminating in a funnel portion 30 having a down
A principal purpose of this invention is to suspend a
wardly-presented tubular ori?ce 31 graspingly engaged by
dip-tube from a dispensing valve for pressure dispensers
the upper end of the dip-tube 32.
with greater security, thus permitting greater pressures 25 A retention ring 50, shown in Figure 2, includes an up
during ?lling and gassing operations and providing
er ring face 51, which may slope radially inwardly as
greater assurance that the dip-tube will remain in place
shown, and a plurality of inwardly-presented spaced teeth
throughout long periods of use. A further purpose of
52 projecting from an inWardly—and-downwardly sloping
this invention is to provide a means for suspending a
inner perimeter face 53 of the ring 50. Said teeth 52
dip-tube from such a valve which will facilitate and make 30 include upper surfaces 54, beveled radially inwardly and
easier the assembly of the valve. An additional purpose
downwardly to intersect lower tooth surfaces 55 at the
is to utilize the ?ow characteristic of rubber-like material
inner tooth edges 56. Since the teeth 52 project and are
employed in the valve seal to anchor such a dip-tube.
beveled equally, their edges 56 lie in a circle. The spaces
Still further purposeswill be apparent from this speci?
between the teeth 52 are at least as wide as the teeth.
cation.
35
In assembling the parts, after the rim 27 of the nipple
These purposes are accomplished by providing means
28 is seated in the groove 17, the retention ring 50 is
to secure the dip-tube for ?ow communication to the
placed around the skirt 18 and pressed upward until its
valve, which means in general comprise a substantially
upper face 51 is presented against the seal ?ange 19, in
rigid, cylindrical, tubular wall which is in communication
which position the tooth edges 56 are slightly below the‘
with the dip-tube, a somewhat rigid annulus having in 40 nipple rim 27, as shown in Figure l. The skirt 18 may
wardly-presented projections disposed radially outward
suitably be provided with an external annular shoulder
of such wall, and, interposed therebetween, a resilient
44 at a level below that of the lower surfaces 55 of teeth
tubular member sealing the ?ow passage, into which mem
52 after assembly as shown. The inner diameter of a
ber the projections of the annulus elastically anchor them
circle connecting the inner tooth edges 56 is less than
45 the outer diameter of the nipple rim 27, thus preventing
selves and thereby retain the rigid cylindrical member.
The accompanying drawings show a preferred embodi
it from passing through the opening of the ring 50. The
ment of the present invention, in which:
thickness of the skirt 18 is greater than the space between
Figure 1 is a side view, partly in section and partly
nipple wall 29 and the tooth edges 56, but less than the
broken away, showing a valve assembly embodying the
space between the wall 29 and the innermost (that is,
50 the lower edge) circumference of the sloping inner face
present invention;
Figure 2 is an enlarged perspective of the retention
53 of the ring 50.
ring shown in section in Figure 1;
The inventive principles hereof will be rendered further
Figure 3 is a sectional view taken along line 3—3 of
apparent from a consideration of the alternate embodi
Figure 1; and
ment of the invention illustrated in Figure 4. The valve
Figure 4 is a view similar to Figure 1 showing an 55 structure here illustrated consists of a solid valve 48 hav
alternate embodiment of the present invention.
ing an upwardly projecting stern passing through a central
For clarity the same reference numerals used in said
circular opening 10’ of a mounting cup 11', a rubber-like
co-pending application are used herein for all correspond
elastic tubular seal generally designated 14’ mounted in
ing parts.
said opening and providing a tubular ?ow passage around
The valve mechanism illustrated in Figure 1 is of a 60 the stem of the valve 48, an external actuator 49, and an
type for which the present invention is particularly suit
able, and consists of a valve spout 21 passing through a
internal dip-tube 32’.
The tubular seal 14' includes a sleeve portion 13',
projecting through and outward of the opening, and an
rubber~like elastic tubular seal generally designated 14
enlarged body portion 15' on the inner side of the mount
passing therethrough between the spout 21 and the mount 65 ing cup 11', which body portion terminates in a valve
ing cup 11, and extending below said mounting cup 11,
seating face 16’. Radially outward of the valve seating
a volute compression spring 26 resting on the base of
face 16’ is an annular groove 17', whose inner wall con
the mounting cup 11 and maintaining the spout 21 in
sists of the enlarged body portion 15' and whose outer
sealing engagement with the seal 14, and a dip-tube 32.
wall is an elastic tubular skirt 18'. The annular skirt 18’
When the valve mechanism is mounted to a container 70 extends down substantially below the valve seating face
containing contents under pressure, sideward or down
16’ and its outer surface is substantially cylindrical. At
ward pressure on the valve spout 21 permits the contents
the base of the sleeve portion 13’ and extending radially,
central circular opening 10 of a mounting cup 11, a
Kn
'1
4
2,849,163
3
outward therefrom substantially beyond the annular skirt
18' is an annular sealing ?ange 19’ presented sealedly
against the inner surface of the mounting cup 11'.
Within the annular groove-17' of the seal 14’ is re
ceived the upper rim 27 ‘of a hollow nipple generally
designated 28, which is identical with the nipple shown
in Figure l and hereinabove described, and whose por
4
member in communication with such ?ow-conducting
means and having an upper wall inwardly adjacent said
depending tubular portion of such valve seat, and a Sub
stantially rigid annulus having a plurality of inwardly
presented spaced retaining projections, said annulus dis
posed spacedly about and radially outward of said rigid
walled member and the depending portion of said valve
seat being interposed therebetween.
2. The mechanism de?ned in claim 1, the depending
Radially outward of the nipple wall 29 and the elastic 10 portion of said resilient member having an uncompressed
' thickness greater than the space between said wall and
skirt 18' is a retention ring 51) which is identical with that
the projections of said annulus.
heretofore described.
3. The mechanism de?ned in claim 1, said wall having
When the ring 50 is placed around the skirt 18 or 18'
tions are correspondingly numbered; which nipple mounts
a dip-tube 32’.
and pressed upward, the teeth 52 project inwardly beyond
an outward enlargement around its circumference at a
during insertion of gas through the valve for pressurizing
the contents of the container, causes the rim 27 to com
having a plurality of inwardly-presented spaced teeth,
the teeth having upper surfaces inwardly and downwardly
However, the claims cover the same ‘structural relation
tubular member, and a substantially rigid annulus having
the normal uncompressed outer diameter of the skirt 15 level above the projections of said annulus, which enlarge
ment is too great to pass through the projections of the
18, 18' and cause the rubber-like substance of the skirt
annulus.
18, 18' to ?ow elastically from within the tooth edges 56
4. In a valve for a pressure dispenser whose contents
into the spaces between the teeth 52 as shown in Figure
are dispensed through a dip-tube, means to secure such
3, and above and below the tooth edges 56, as shown
dip~tube for flow communication with such valve, com
best in Figure 4. The inwardly-and-downwardly beveled
prising an elastic tubular seal associated with such valve
upper surfaces 54 of the teeth 52 permit easy passage of
in the path of ?ow thereto and having a skirt portion
the ring upward. Downward pressure on the ring 50
depending within such dispenser, a hollow nipple having
causes the teeth 52 to dig into the rubber-like substance
a lower end in communication with such dip-tube and
of the skirt 18, 18', thus preventing the ring from sliding
downward from around said skirt 18, 18'. Downward 25 having a substantially rigid cylindrical upper wall em
braced by the seal skirt portion, and a retention ring
pressure on the nipple 28, such as may be experienced '
beveled, said ring being mounted spacedly ‘about and
press the rubber-like substance of the skirt 18, 18’ against
the upper tooth surfaces 54. As previously mentioned, 30 radially outward of said nipple upper wall and the seal
skirt portion being interposed therebetween and secured
the rim 27 cannot pass through the opening of the ring
sealedly against said nipple wall by the teeth of said ring.
50 because its outer diameter is greater than the diameter
5. The mechanism de?ned in claim 4, said skirt por
of the circle in which the tooth edges 56 lie. If provided,
tion having an uncompressed thickness greater than the
as shown in Figure l, the shoulder 44 provides even
greater security against the ring 50 being forced down 35 space between said nipple wall and the innermost edges of
the teeth of said ring, and less than the space between
ward from around the skirt 18. Thus the dip-tube 32 is
said nipple wall and the inner perimeter of said ring, the
suspended in flow communication with the valve opening
spacings between the teeth being at least equal to their
secure against downward pressure on the ring 50 or down
width, whereby to permit sideward ?ow into said spaces
ward pressure on the nipple 28.
The present invention may be employed upon and in 40 of the elastic material of said skirt portion as the ring is
mounted in place.
connection with other types of dispensers and other types
6. The mechanism de?ned in claim 4, the innermost
of dispensing valves. In the claims which follow, it has
edges of said teeth lying in a circle, said nipple having,
been necessary to select certain language to describe
above the level of its cylindrical wall and within the
spatial and directional relationships which could be
readily varied. Such discharge valves are usually in the 45 tubular seal, an outward-turned rim Whose outer diameter
is greater than the diameter of said circle..
top wall of a dispenser, with‘the tubular seal 14 in a
7. A valve mechanism for dispensers whose contents
horizontal plane, and with the valve spout 21 vertical
are discharged under gas pressure, comprising a valving
when in closed position. It is convenient to think of a
member, a resilient tubular member emcompassing and
central axis about which the tubular seal 14, 14’ may
providing a seat for said valving member, said tubular
be considered to be formed. Thus, in the claims the
member mounting said valving member within an aper
term “upward,” or sometimes “outer,” refers to a direc
ture of a wall of such dispenser, ?ow-conducting means
tion taken along such axis from within the container out
extending downward into such dispenser, a hollow, sub
ward through the mounting cup'opening 10, 10’ whereas
stantially rigid walled member within the container
“radially outward” means perpendicular to such axis. The
mounting s aid downward-extending ?ow-conducting
other terms of direction used in the claims will be under
means and having an upper portion within said resilient
stood as relating to these which have been de?ned.
ships even though valves may be installed sidewards or
slantingly, or in some container wall other than the top.
inwardly-presented spaced projections, said rigid annulus
to be limited by the embodiments illustrated, the ma
terials mentioned, or the uses discussed; but should be
construed as fully co-extensive with the claims which
relationship.
being disposed outward of the portion of said resilient
60 tubular member surrounding said rigid walled member
wall.
and its projections holding the said resilient member and
Many other modi?cations will occur to those skilled
said rigid walled member together in ?ow-conductive
in the art. Thus the scope of the present invention is not
follow.
We claim:
1. In a valve for a pressure dispenser whose contents
are discharged through ?ow-conducting means within the
container, means to secure such ?ow-conducting means in 70
8. A valve mechanism as de?ned in claim 7, the tubu
lar member having an external shoulder at a level be
neath and adjacent the rigid annulus.
References Cited in the ?le of this patent
UNITED STATES PATENTS
communication with such valve, comprising a resilient
2,303,359
2,350,315
Hothersall ___________ _.. Dec. 1, 1942
Kral _______________ __ May 30, 1944
valve seat having a depending tubular portion in the path
of flow to such valve, a hollow,‘ substantially rigid walled
2,712,262
2,766,914
Knohl ________________ _.. July 5, 1955
Baer _______________ __ Oct. 16, 1956
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