U.S. patent number 3,851,799 [Application Number 05/029,185] was granted by the patent office on 1974-12-03 for valve for the distribution under pressure of a liquid or paste product.
This patent grant is currently assigned to Societe De Fabrication Et De Distribution De Parfumerie Et Cosmetique. Invention is credited to Jean-Claude Paoletti.
United States Patent |
3,851,799 |
Paoletti |
December 3, 1974 |
VALVE FOR THE DISTRIBUTION UNDER PRESSURE OF A LIQUID OR PASTE
PRODUCT
Abstract
A valve for mounting in a receptacle for the distribution under
pressure of a liquid or paste product contained in the receptacle.
The valve includes a tubular body connected to a plunger tube
intended to dip into the product in the receptacle, a plunger
moveable within the tubular body to permit discharge of product
under pressure through the valve outlet, and a sealed chamber
formed around the tubular body and intended to contain liquefied
propellant. The wall of the chamber has a flap valve which permits
escape of vaporized propellant from the chamber to the interior of
the receptacle.
Inventors: |
Paoletti; Jean-Claude
(Nanterre, FR) |
Assignee: |
Societe De Fabrication Et De
Distribution De Parfumerie Et Cosmetique (Neuilly-sur-Seine,
FR)
|
Family
ID: |
26214972 |
Appl.
No.: |
05/029,185 |
Filed: |
April 16, 1970 |
Foreign Application Priority Data
|
|
|
|
|
Apr 22, 1969 [FR] |
|
|
69.12552 |
Nov 7, 1969 [FR] |
|
|
69.38372 |
|
Current U.S.
Class: |
222/129; 222/399;
222/402.16 |
Current CPC
Class: |
B65D
83/663 (20130101) |
Current International
Class: |
B65D
83/14 (20060101); B65d 083/14 () |
Field of
Search: |
;222/129,130,131,145,399,402.16,402.18,42.2H,94.95
;137/525,525.3,525.5 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Reeves; Robert B.
Assistant Examiner: Kocovsky; Thomas E.
Attorney, Agent or Firm: Spencer & Kaye
Claims
I claim:
1. A valve system for the distribution under pressure of a product
contained in a receptacle, composed of
a valve comprising: a capsule arranged to be fastened onto the
receptacle; a body arranged to be set into the receptacle and
having an upper part housed in the capsule; and a plunger tube
extending with a lower end thereof to the bottom of the receptacle
and serving for the removal of the product, said valve being of a
type which distributes a product having a propellant mixed
therewith,
said system being further composed of an adapter member detachably
associated with said valve and comprising: means arranged to be
supported by the receptacle and including a wall surrounding said
body and partly defining with said body an elongated chamber for
containing a propellant therein, said means having an upper portion
including a flange which is dimensioned to be slidable into the
interior of said capsule, and a lower portion formed as a sleeve
forming a removably slidable sleeve forming a seal with respect to
said valve, said wall having an orifice formed therein; and a flap
valve mounted to cooperate with said orifice, said flap valve
opening in the direction from the interior of said chamber towardS
the interior of said receptacle, the association of said adapter
means with said valve resulting in a system for distributing a
product contained in such receptacle under the action of a
propellant maintained separate from said product and within said
chamber.
2. A valve system as defined in claim 1, wherein said wall
comprises a tubular part introduced into said capsule and resting
on the upper edge of said receptacle, said chamber being defined by
at least a part of the outer surface of said body and by said
tubular part, and said tubular part including an outer annular
flange at the upper end thereof, a base at the lower end of said
tubular part, means defining an aperture in said base through which
said plunger tube extends in a sealtight manner, and said flap
valve being partly supported by said flange.
3. A valve system as defined in claim 1, in which said body is of
the pressure-filling type, and including means defining a lateral
orifice in said body, a further flap valve mounted to co-operate
with said lateral orifice to permit communication between said
chamber and the interior of said body, a plunger piston moveable
within said body to a position in which it blocks communication
between said plunger tube and said body, and an actuator mounted on
said piston above said capsule, the actuating stroke of said
actuator for enabling discharge of product from the valve being
less than the stroke of said piston to block communication between
said plunger tube and the body.
4. A valve system as defined in claim 1, in which said flap valve
includes a bushing fitted on the outer surface of said wall, a
flexible rod extending longitudinally from said bushing and
including a free end, and an obturator on the free end of said rod
for engaging with said orifice.
5. A valve system as defined in claim 1, in which said valve
includes a protruding conical portion terminating in a narrow
annular surface provided on said wall said conical portion
surrounding said orifice.
6. A valve system as defined in claim 1, including a base closing
the lower end of said wall and means defining an opening in said
base said body passing through said opening in a sealing
manner.
7. A valve system as defined in claim 1, including a base closing
the lower part of said wall, said sleeve extending from said base
into said chamber, the free upper end of said sleeve being fitted
to said body, and means defining a duct in said sleeve as an
extension of a lower orifice of said valve, the plunger tube being
fitted into a lower part of said duct.
8. A valve system as defined in claim 1 in which the plunger tube
is inserted at its upper end into the lower part of said body and
in which said sliding sleeve forms a base portion of said chamber
while forming a sealed joint with said body of said valve.
9. A valve system as defined in claim 1 in which said chamber
extends below a lower part of said body and is provided with a
tubular projection which extends interiorly from the lower portion
of said means into a free extermity, said tubular projection being
arranged to receive an upper end of said plunger tube at its
extremity which is joined to said lower portion of said means and
being arranged to form a sealed joint with the lower part of said
body by its free interior extremity.
10. A valve system as defined in claim 1, wherein said valve
further comprises a tubular member connected to the lower end of
said body, and wherein said removably slidable sleeve is connected
with said tubular member to form said seal.
11. A valve system as defined in claim 10 in which the tubular
member is comprised by said plunger tube.
12. A valve system as defined in claim 1, in which said flap valve
comprises means defining an orifice in said wall and a ring of
flexible material applied around said wall to cover said
orifice.
13. A valve system as defined in claim 12, including an outer
annular flange extending from an upper end of said ring, said
flange being introduced into said capsule and being located between
the upper edge of the said receptacle and an upper flange portion
of said wall.
14. A valve system as defined in claim 1 in which said flap valve
is rubber and includes a flange portion and a skirt portion
extending therefrom, said skirt portion surrounding said body and
covering said orifice.
15. A valve system as defined in claim 14, in which said flange
portion of said flap valve has a protrusion which bears against the
edges of said orifice.
16. A valve system as defined in claim 14, in which said valve
includes means defining a circular groove in the outer face of said
wall with said orifice extending into said groove from the inner
face of said wall, and an inwardly directed protrusion on said
flange portion of said flap valve which engages in said groove.
17. A valve system as defined in claim 14 in which said flange
portion of said flap valve is arranged to be slidable into said
capsule and supportingly mounted between said flange of said upper
portion of said means and said receptacle after crimping of said
capsule on said receptacle.
18. A valve system for the distribution under pressure of a product
contained in a receptacle, the valve including a capsule arranged
to be fastened onto the receptacle, a body arranged to be set into
the receptacle and having an upper part housed in the capsule, and
a plunger tube extending with a lower end thereof to the bottom of
the receptacle and serving for the removal of the product, wherein
the improvement comprises: means arranged to be supported by the
receptacle and including a wall surrounding said body and partly
defining with said body an elongated chamber for containing a
propellant therein, said means having an upper portion including a
flange which is dimensioned to be slidable into the interior of
said capsule, and a lower portion formed as a sleeve forming a
seal, and slidable, with respect to said valve, said wall including
an orifice formed therein, and a flap valve arranged to be
supported by said receptacle and cooperating with said orifice,
said flap valve opening in the direction from the interior of said
chamber towards the interior of said receptacle, wherein said
sliding sleeve forms a sealed joint with said valve connecting said
wall to a lower part of said body.
19. A valve system for the distribution under pressure of a product
contained in a receptacle, the valve including a capsule arranged
to be fastened onto the receptacle, a body arranged to be set into
the receptacle and having an upper part housed in the capsule, and
a plunger tube extending with a lower end thereof to the bottom of
the receptacle and serving for the removal of the product, wherein
the improvement comprises: means arranged to be supported by the
receptacle and including a wall surrounding said body and partly
defining with said body an elongated chamber for containing a
propellant therein, said means having an upper portion including a
flange which is dimensioned to be slidable into the interior of
said capsule, and a lower portion formed as a sleeve forming a
seal, and slidable, with respect to said valve, said wall including
an orifice formed therein, and a flap valve arranged to be
supported by said receptacle and cooperating with said orifice,
said flap valve opening in the direction from the interior of said
chamber towards the interior of said receptacle, wherein said
flange is firmly sleeved on said wall at one end of said chamber
and wherein said sliding sleeve forms a base portion at the other
end of said chamber, means defining an aperture in said base
portion through which said plunger tube extends in a seal-tight
manner into position between the base of said receptacle and the
lower end of said body, and said flap valve being partially
supported by said flange.
20. A valve system for the distribution under pressure of a product
contained in a receptacle, the valve including a capsule arranged
to be fastened onto the receptacle, a body arranged to be set into
the receptacle and having an upper part housed in the capsule, and
a plunger tube extending with a lower end thereof to the bottom of
the receptacle and serving for the removal of the product, wherein
the improvement comprises: means arranged to be supported by the
receptacle and including a wall surrounding said body and partly
defining with said body an elongated chamber for containing a
propellant therein, said means having an upper portion including a
flange which is dimensioned to be slidable into the interior of
said capsule, and a lower portion formed as a sleeve forming a
seal, and slidable, with respect to said valve, said wall including
an orifice formed therein, and a flap valve arranged to be
supported by said receptacle and cooperating with said orifice,
said flap valve opening in the direction from the interior of said
chamber towards the interior of said receptacle, wherein the
plunger tube is inserted at its upper end into the lower part of
said body and wherein said sliding sleeve forms a base portion of
said chamber while forming a sealed joint with said plunger tube of
said valve.
Description
BACKGROUND OF THE INVENTION
The invention relates to valves of the type known in the perfumery
and cosmetic industries for the distribution under pressure of a
liquid product. The invention applies improvements to these valves
which considerably extend the possibilities for their
utilisation.
The majority of the valves of the above type distributed through
the industry are applied to control the emission in the form of an
aerosol, or more or less in the form of very minute droplets of a
liquid product (such as eau de cologne, toilet water, perfume, skin
softening preparations, etc.). This product is contained in a
receptacle, onto which the valve is crimped, in a mixture with a
propellant which is often a liquefied gas such as butane or one of
the gases known under such names as freon, etc. A satisfactory
atomization is only obtained when the product and the propelling
agent are mutually compatible and, further, are miscible one with
the other in the utilization conditions in order to form a stable
homogenous mixture.
Now, it is not always possible, or even desirable, to mix a
propelling agent with the product to be atomized.
SUMMARY OF THE INVENTION
The principal object of the invention is to improve a valve of the
known type defined above in order to be able to make use of them
likewise for the ejection under pressure of a product not mixed
with a liquid propelling agent, the propellant being shut off,
within the receptacle, in a separate capacity. The valves so
improved have greater possibilities for application in perfumery,
in cosmetics, with drugs, etc.
Another object of the invention is to improve a valve of the known
type simply by the addition of the smallest possible number of
parts which can be made economically on a quantity production
basis.
A supplementary object of the invention is to attain a valve of the
known type improved by the addition of parts which can be easily
withdrawn so that the valve is reverted quickly to its original
state to serve for its first use if so desired.
According to the invention, in a valve for mounting in a receptacle
for the distribution under pressure of a liquid or paste product
contained in the receptacle comprising a capsule, a body, and a
plunger tube, the improvement comprises a wall extending around a
part at least of said body, an outer surface of said body defining
with said wall an enclosed chamber intended to contain a liquified
fluid propellant, a sealed joint connecting said wall to an upper
part of said body, and flap valve means provided on said wall which
is openable to permit propellant to pass from the enclosed chamber
to the interior of said receptacle.
There will now be given, purely by way of example, in order that
the invention may be better understood, a description of several
embodiments which will further make it possible better to
understand the aims and advantages of this invention.
BRIEF DESCRIPTION OF THE DRAWINGS
Reference will be made to the attached drawings in which:
FIG. 1 is a part view in section of a receptacle taken on a plane
passing through the axis of the receptacle fitted with one form of
valve improved in accordance with the invention;
FIG. 2 is a similar part view to the above of a receptacle equipped
with another form of valve in accordance with the invention;
FIGS. 3 to 6 are enlarged detail views of four examples of a flap
element forming part of an improved valve according to the
invention;
FIGS. 7, 8 and 9 are part section views of three other examples of
valves improved according to the invention.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring to FIG. 1, the essential parts of a valve will first be
described as they are generally known, under the common designation
1. This valve 1 is incorporated in a capsule 2 crimped onto a
receptacle 3. The valve 1 comprises generally tubular body 4, and a
plunger tube 5 pressed into the lower part of the body 4 and
extending to the bottom of the receptacle 3.
In the body 4 of the valve there is fitted a plunger 6 loaded
upwards by a spring 7. In the upper part of the plunger 6, there is
formed a longitudinal channel 8 which communicates with a radial
hole 9. In the idle state shown in FIG. 1, the hole 9 is blocked by
a rubber seal 10 located at the bottom of the capsule 2 and
gripping flexibly around the plunger 6. The parts of the valve 1 so
far described are known. Hitherto, when the plunger 6 was pushed
down with the aid of a pushrod, not shown in FIG. 1, the product
contained in the receptacle 3 e.g. perfume plus a propellant, is
displaced by the pressure which prevails in the receptacle, rises
up through the tube 5, passes through the tubular body 4, and
passes through the radial hole 9 into the duct 8 from which it is
discharged.
However, in accordance with the invention, a wall 11 extends around
the greater part of the body 4 and defines an enclosed volume 12
about the body 4. In this example, this wall is comprised by a
tubular part making a sealed joint with the upper part of the body
4 by virtue of an external annular flange 13 passed into the
capsule 2 and trapped between capsule 2 and the upper edge of the
receptacle 3. In this way the flange 13 is joined in a manner
forming a seal to the upper part of the body, by virtue of the
capsule 2 and the usual joints.
In the same way, the wall 11 makes a sealing joint with the lower
part of the body 4 or, more precisely, with the plunger tube 5
which can be integral with the body 4. For this purpose, the wall
11 is provided with a base 14 pierced by an aperture through which
the tube 5 is passed with an interference which is adequate to make
this a sealed assembly.
It will be appreciated that the plunger tube 5 is an extension of
the body 4 and that the wall 11 can also extend in part around the
tube 5 as can be seen in the FIG. 1. It is easily appreciated that
the wall 11 can be produced in the form of a tubular part having an
outer flange 13 and a pierced base 14, moulded as one piece in a
plastics material.
The wall 11 is provided with a flap valve arrangement, identified
with the general reference 15, which is displaceable outwardly
relative to the wall 11 in order to bring the enclosed volume 12
into communication with the interior of the receptacle 3.
In the case shown in FIG. 1, the flap valve arrangement 15 includes
a transfer passage 16 pierced through the wall 11 and a ring 17 in
an elastic material, such as rubber for example, fitted around the
tubular wall 11 on a level with the hole 16.
The ring 17 has at its upper end an external annular flange 18
which is passed into the capsule 2. This flange 18 rests directly
on the upper edge of the receptacle 3. It supports in its turn the
flange 13 of the tubular wall 11 on which is laid a rubber sealing
joint.
The wall 11 is intended to contain in the enclosed volume 12 a
propelling agent constituted by the liquid phase of a suitable
liquified gas. This liquefied gas becomes partially vaporized and
its vapor displaces outwardly the ring 17 of the flap valve 15.
Passing through the hole 16, the vapor expands within the
receptacle 3 until the pressures are balanced. When the plunger 6
is depressed, the product contained in the receptacle 3 is set in
motion by the pressure; at the same time a fresh vaporization of
liquid occurs in the volume 12 which passes through the flap valve
15.
Thus the product is propelled by the propulsive agent through tube
5, body 4, hole 9, and channel 8, but it is not in contact with the
liquid phase of the propellant. As the propelling agent is in fact
kept in the liquid state inside the wall 11, it only occupies a
small volume; and it is vaporized as it is needed.
With this arrangement it is not necessary that the liquid
propellant and the product should be two substances capable of
forming a stable homogenous mixture. It is only necessary that the
gaseous phase of the propellant does not readily dissolve in the
product, as in this case all the liquid phase would vaporized
rapidly at the speed of the solution of the gaseous phase in the
product.
One important advantage produced by the invention will be noticed.
The known part of the valve 1 as described above can be used for
the discharge under pressure of an homogenous mixture of product
and liquified propellant. It sufficies to bring in just at the time
of use, the tubular part 11 provided with the flap valve
arrangement 15 for the improved valve 1 to be able to serve for the
projection of a product which always remains separated from the
liquid phase of the propellant. No change is made so far as the
receptacle 3 is concerned. Further, no alteration is made to the
known part of the valve 1, so that if the tubular part 11 and valve
arrangement 15 are removed, it can again serve for its initial
use.
In the case of FIG. 1, after having filled the receptacle 3 to the
desired level with the product to be sprayed-out, a suitable amount
of a liquified propellant is poured into the enclosed chamber
(volume 12) formed by tubular part 11 which has already been
equipped with the plunger tube 5. The assembly of the improved
valve is completed and the capsule 2 is crimped onto the receptacle
3.
FIG. 2 shows another example of a valve 1A, improved in accordance
with the invention, which is of the type filled under pressure. The
component parts which are identical to, or similar to those of the
valve 1 are identified by the same references.
In the body 4, at a distance L from the extreme lower face of the
plunger piston 6 there is a transfer orifice 19 which can be
blocked by the piston 6. Further, the rubber joint which rests in
the capsule 2 on the annular flange 13 is furnished with a skirt 20
which surrounds the upper part of the body 4. Beneath this skirt 20
there is drilled a lateral opening 21; in fact, the skirt 20 in
association with the opening 21 plays the part of a flap valve
which can open and so give access to the interior of the tubular
part 11.
After having filled the receptacle 3 and fitted and crimped the
valve 1A on this latter, it is possible to proceed with filling the
tubular part 11 with liquified gas. To do this, the piston 6 is
pushed down for a length L, when it blocks the aperture 19, and the
liquid phase of the propellant is injected under pressure into the
duct 8. This has the effect of lifting the skirt 20 so that liquid
propellant passes into the tubular part 11. After this filling
operation, the pressure which prevails in the chamber 12 throughout
the life of the receptacle 3 keeps the skirt 20 pressed against the
aperture 21 and prevents any escape of the propellant, as well as
any introduction into chamber 12 of the product which rises through
the tube 5 and the body 4 during each distribution of the
product.
In the FIG. 2, the upper part of the piston 6 carries an actuating
push-rod 22. The stroke of this latter in relation to the capsule 2
is fixed at a value l less than L in such a way that in normal use
the piston 6 cannot block the orifice 19.
It will be noted that here also the valve 1A is of a classic type
known as a pressure charging metering valve to which the
improvements in accordance with the invention add new possibilities
for application, by the simple addition, as before, of a tubular
part 11 furnished with a flap valve arrangement 15, the whole being
suitable for introduction through the opening of a receptacle
3.
The FIGS. 7, 8, 9 show variations of the embodiment of the tubular
part 11 and of the means for its fitting on the body of a
valve.
In all three cases the tubular part which surrounds the body 4 of
the valve is closed by a base 14. In the FIGS. 7 and 8 there is,
starting from this base, an internal sleeve 30 having a duct 31
passing through it from end to end.
In the FIG. 7 the free end of the sleeve 30 has a reduced diameter
so that it adapts itself exactly in the lower aperture of the body
4.
In the FIG. 8 of the free end of the sleeve 30 has an enlarged bore
in order that the lower part of the body 4 can fit exactly into the
sleeve.
In the two FIGS. 7 and 8 the plunger tube 5 is introduced into the
duct 31, which is slightly expanded at its lower end.
In the FIG. 9 the sleeve 30 has a considerably reduced height; it
constitutes rather a reinforcement of the base 14. This
reinforcement of the base has an opening passing through it in such
a way that the lower part of the body 4 fits exactly therein and
protrudes beyond the tubular part 11. The plunger tube 5 is then
pushed into the body 4.
The examples of the FIGS. 7, 8, 9 contribute supplementary
advantages.
In the FIGS. 1 and 2 the plunger tube 5 passes completely through
the base 14. This tube often has an irregular outer surface,
carrying longitudinal striations caused during its extrusion. The
striations can be a cause of escape of the liquid phase of the
propellant contained in the tubular part 11.
Further, the plunger tube 5 passes through the base 14 and is
fitted into the lower part of the body 4. This double assembly of
the tube is far from easy to achieve on an automatic assembly
machine; a single assembly is preferable for an assembly
machine.
In the FIGS. 7, 8, 9 the part 11 is assembled with the body 4 and
the plunger 5 is assembled either with the part 11 (FIGS. 7 and 8)
or with the body 4 (FIG. 9). The double assembly is eliminated and
replaced by a single assembly.
By virtue of the invention, valves which up to the present could
only serve for the distribution of liquid products miscible with a
liquified propellant can be rapdily modified to serve for the
distribution of products which cannot be mixed with a liquid
propellant. This product can be a liquid, a foam, a paste, etc.
Variations in the form of the flap valve arrangement 15 are shown
in FIGS. 3 to 6.
In the FIG. 3, the rubber ring 17 has in front of the hole 16 a
protrusion 23 of hemispherical shape which seats perfectly on the
edges of this hole.
In the FIG. 4, a circular groove 24 is cut in the wall 11; and the
hole 16 is pierced through to the bottom of the groove 24. The ring
17 has an internal bulge 25 suitable to come into contact with the
edges of the groove 24.
In the FIG. 5, a metal collar 26 is fitted on the outer face of the
wall 11. This collar 26 is equipped with a flexible bar 27 which
extends longitudinally in front of the hole 16, where its free end
is equipped with a protruberance 28 acting as an obturator for the
hole 16.
In the FIG. 6, the hole 16 pierced in the wall 11 is surrounded
externally by a raised conical zone 29 which is terminated by a
very narrow annular face. The lower flexible part of a rubber ring
17 combines with that annular face to play the part of a flap
valve.
As has been shown in describing several embodiments of the
invention, it is apparent that this may be in the form of several
differing variants. It should thus be understood that the invention
is not limited to the examples quoted above, but that it embraces
all the modifications or equivalents which do not depart from its
framework or from its spirit.
* * * * *