CA2039032A1 - Foam dispensing head - Google Patents
Foam dispensing headInfo
- Publication number
- CA2039032A1 CA2039032A1 CA 2039032 CA2039032A CA2039032A1 CA 2039032 A1 CA2039032 A1 CA 2039032A1 CA 2039032 CA2039032 CA 2039032 CA 2039032 A CA2039032 A CA 2039032A CA 2039032 A1 CA2039032 A1 CA 2039032A1
- Authority
- CA
- Canada
- Prior art keywords
- dispensing head
- mounting member
- collector
- collector member
- skirt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Abstract
ABSTRACT
A foam dispensing head for applying foamy product on a surface from a pressurized container. The dispensing head comprises a mounting member, a valve actuator member, and a squeezable collector member. The mounting member has a skirt of which lower end is adapted to securely engage the container, a finger tab hinged to the skirt, and a ring which is rising above the finger tab and engages the upper end of the collector member. The ring has some radial rigidity, while axially is connected to the skirt by resiliently collapsible holder means. Thereby, an axial depression of the upper end of the collector member causes the holder means to collapse and the collector member to squeeze, and a radial pressing of the upper end fails to squeeze the collector member.
A foam dispensing head for applying foamy product on a surface from a pressurized container. The dispensing head comprises a mounting member, a valve actuator member, and a squeezable collector member. The mounting member has a skirt of which lower end is adapted to securely engage the container, a finger tab hinged to the skirt, and a ring which is rising above the finger tab and engages the upper end of the collector member. The ring has some radial rigidity, while axially is connected to the skirt by resiliently collapsible holder means. Thereby, an axial depression of the upper end of the collector member causes the holder means to collapse and the collector member to squeeze, and a radial pressing of the upper end fails to squeeze the collector member.
Description
~ ~ 3~ ~ 3 FOAM DISP~NSING HFAD
SPECIFICATI~N
The pr~s~nt inventlon relate~ to a dispensing head for discharging a foam producing substance from a pressuriæed container and applying it on a ~urface~
There is already known a dispensing head and method for applying foamy produc~ on a skin surface9 which dispensing head is comprising an actuator member and an elastically squeezable collecting bowl member having a central axis. In use, when the actuator member is operated, product is delivered from the container into the collecting bowl member. Squeezing of the bowl axially against th~ skin,causes product to escape from the bowl and deposit directly on the skin. After that, it is desired to spread the product evenly on the skin, which 1~ requires ~he moving of the bowl sideways, generally in normal direction to its axis. While this prior dispensing head has been satisfactory in general, during the spreading procedure, the bowl member can be inadvertently squeezed in the direction normal to its axis, whereby causing undesirable product escaping from the bowl.
There is a need for an improved dispensing head which overcomes the aforementioned problem.
An object of the present invention is to provide a simple construction dispensing head for applying foamy product on a skin from a pressurized container having an outlet valve.
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_ 2 - z~)39~7 The dispensin~ head comprises a mounking member, a valve actuator member, and a squeezable collec~or me~ber. Th~ mounting member has a skirt of which lower end i9 adapted to securely engage the container, a finger tab hinged to the skirt, and a ring which i9 rising above the finger tab and engages the upper end of the collector member. The ring has some radial rigidity, while axially is connected to the skirt by collapsible holder means. Thereby, an axial depression ~f the upper end of the collector member causes the holder means to collapse and the collector member to squeeze, ~nd a radial pressing of the upper end of the collector member fails to squeeze the collector member.
Other ob~ects and advantages of the invention will be apparent from the accompanying drawings and description.
In the drawings.
Figure 1 is an axial sectional view of the upper portion of a pressurized container having a di~pensing head embodied in the present invention;
Fi~ure 2 is a schematic view showing the dispensing head o~ Figure 1 pressed against a surface; and Figure 3 is a sectional view taken along line 3-3 as indicated in Figure 2.
Referring to Figure 1, there is shown a dispensing head 1 in accordance with the present invention, which is designed for utiliza~ion with a conventional pressurized container 10. Container 10 is a cylindrical container having a ~ . ` . . . . . . . . . . . . . .. . . .
, . ' . :.
, . , - 3 - ~3~)3~
circular closure wall 11 to whi~h a valve carrying cap 12 is at~ached by curling outward and downward its rim 13. The cap 12 carries a conventional reciprocable valve assembly 14 having a preloaded compression closing spring (not shown) which bears upward against a tubular outlet stem 15. The product from the container 10 is discharged through the outlet stem 15 when it is pressed downward.
The dispensing head 1 comprises a mounting member 40, a valve act~ator member 60, and a collector member 20. The mounting member 40 is an integral molding of a resilient plastic~
The valve actuator member 60 is also a molded plastic part. The collector member 20 is made of resilient synthetic foam. All the three members are preferably circular in plan form.
The mounting member 40 has a cylindrical skirt 41 of which lower end 42 is adapted to be secured to the rim 13 of cont~iner 10 in positions surrounding the valve assembly 14.
The skirt 41 defines a gap 43 (shown in Fig~ 3). The mounting member 40 also has a ring 47 which is connected to the lower end 42 of skirt 41 by resilient holder means 4~. The mounting member 40 further has a finger tab 45 attached to the inner side of skirt 41 by a hinge 44 ~shown in Fig. 3), and a cylindrical limiting wall 49 rigidly connected to the lower end 42 of skirt I~l, The limiting wall 49 defines a gap 50 as shown in Fi~lre 3.
The ~inger tab 45 is extending across the axis defined by stem 15 and through gaps 43 and 50. The finger tab 45 has a hole 46 aligned with the axis defined by stem lS.
. ~ , .
. , ~ . , ~
- 14 ~
Both the ring ~7 and ~he holder means 4~ have some radial rigidity, while the later have substantial axial flexibility. Thereby, axial depression of rin~ ~7 would collapse the holder means 4~.
In this embodiment, flexible holder means ~ are three helical holAers, which can be simply molded integral with the lower end 42 of skirt 41. Presumably other means migth be utilized to enable the ring 47 to be resiliently depressible.
Referring to Figure 1, the collector member 20 has a tubular side wall 21 and a horizontal bottom wall 22 joined to the lower end of slde wall 21. The bottom wall 22 has a centrally located hole 23 there~hrough. The side wall 21 has a rounded top end 24 which is interrupted by a plurality of vent notches 25. The lower end of collector member 20 is restricted to provide a finger access to ~he finger tab 45 of mounting member ~0. The sid~ wall 21 also has a deep circular groove 26 cut from its bottom end. Groove 26 defines an end surface 27 in the vicinity of top end 24. The ring member ~7 of mounting member 40 is received in groove 26 and engaged with the end surface 27.
The val~e actuator member 60 has a head portion 61, a flange portion 62, and a shank portion 63. A discharge orifice 65 is directed radially outwardly from the center of the head portion 61. The shank portion 63 has a cylindrical outer surfa~ce which engages both the centrally located hole 23 of collector member Z0 and the hole 46 of finger tab 45 of mounting `:
, :
. .
.
, - 5 ~
member 40. The shank por~ion 63 also has lockin~ means 6~ which during assembly of dispensing head 1, can be forced through the hole 46 to engage the underside of finger tab 45. After that, the actuator member 60 is not being manuall~ disengageable from the hole 46. The shank portlon 63 further has a s~em engaging socket 66 and a bore 67 which communicates between the socket 66 and the discharge orifice 65.
The collector member 20 is attached to the finger tab 45 of mounting member 40 by its bottom wall 22. As the bottom wall 22 is compressed be~ween the flange 62 of actuator member 60 and the finger tab 45 of mounting member 40, sealing is provided between the flange 62 and the bottom ~Jall 22. Thereby product can not escape through the hole 23 when the collector member 20 is squeeæed~
In use, depression of finger tab 45 in a direction parallel to the axis defined by stem 15 and toward container 10, operates the actuator member 60 to discharge product from the container 10 into the collector member 20.
Figure 2 illustrates the dispensing head 1 with the collector member 20 is axially squeezed agalnst a surface 70, as indicated by the arrow~ In this m~nner, the ring 47 is pressed down against the helical hold~rs 4~ allowing product to escape from the collector member 20. The limiting wall ~9 is rising above both the finger tab 45 and the actuator member 60 to pro~ide a stop for th~ surface 70, whereby eliminating the inadvertent operation of actuator member 60.
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It may be seen, that the ring 1~7 is supporting the top end 24 of collector member 20 at all time~ Thereby the dispensing head l can be pressed sideways, in directions normal to the arrow, without squeeæing the collector member 20.
Although the collector member 20 is squeezable w~th lesser resistance ~han the preload of the compres~sion closing spring of valve assembly l~, the upper end of the skirt 4l is supporting the lower end of side wall 21 to take off the load from the finger tab 45.
After removing the pressure from the dispensing head 1, it reassumes its initial size and form, as shown in Figure l.
As ~ent notches 25 are provided, air can flow into ~he collector member 20 when it is being separated from the surface 70, thereby the top end 2~ of collector me~ber 20 would -not stick to the surface 70.
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SPECIFICATI~N
The pr~s~nt inventlon relate~ to a dispensing head for discharging a foam producing substance from a pressuriæed container and applying it on a ~urface~
There is already known a dispensing head and method for applying foamy produc~ on a skin surface9 which dispensing head is comprising an actuator member and an elastically squeezable collecting bowl member having a central axis. In use, when the actuator member is operated, product is delivered from the container into the collecting bowl member. Squeezing of the bowl axially against th~ skin,causes product to escape from the bowl and deposit directly on the skin. After that, it is desired to spread the product evenly on the skin, which 1~ requires ~he moving of the bowl sideways, generally in normal direction to its axis. While this prior dispensing head has been satisfactory in general, during the spreading procedure, the bowl member can be inadvertently squeezed in the direction normal to its axis, whereby causing undesirable product escaping from the bowl.
There is a need for an improved dispensing head which overcomes the aforementioned problem.
An object of the present invention is to provide a simple construction dispensing head for applying foamy product on a skin from a pressurized container having an outlet valve.
. . .~ ^ - - - - : : :
" .
, .
: ~ ; . . ,., Z
_ 2 - z~)39~7 The dispensin~ head comprises a mounking member, a valve actuator member, and a squeezable collec~or me~ber. Th~ mounting member has a skirt of which lower end i9 adapted to securely engage the container, a finger tab hinged to the skirt, and a ring which i9 rising above the finger tab and engages the upper end of the collector member. The ring has some radial rigidity, while axially is connected to the skirt by collapsible holder means. Thereby, an axial depression ~f the upper end of the collector member causes the holder means to collapse and the collector member to squeeze, ~nd a radial pressing of the upper end of the collector member fails to squeeze the collector member.
Other ob~ects and advantages of the invention will be apparent from the accompanying drawings and description.
In the drawings.
Figure 1 is an axial sectional view of the upper portion of a pressurized container having a di~pensing head embodied in the present invention;
Fi~ure 2 is a schematic view showing the dispensing head o~ Figure 1 pressed against a surface; and Figure 3 is a sectional view taken along line 3-3 as indicated in Figure 2.
Referring to Figure 1, there is shown a dispensing head 1 in accordance with the present invention, which is designed for utiliza~ion with a conventional pressurized container 10. Container 10 is a cylindrical container having a ~ . ` . . . . . . . . . . . . . .. . . .
, . ' . :.
, . , - 3 - ~3~)3~
circular closure wall 11 to whi~h a valve carrying cap 12 is at~ached by curling outward and downward its rim 13. The cap 12 carries a conventional reciprocable valve assembly 14 having a preloaded compression closing spring (not shown) which bears upward against a tubular outlet stem 15. The product from the container 10 is discharged through the outlet stem 15 when it is pressed downward.
The dispensing head 1 comprises a mounting member 40, a valve act~ator member 60, and a collector member 20. The mounting member 40 is an integral molding of a resilient plastic~
The valve actuator member 60 is also a molded plastic part. The collector member 20 is made of resilient synthetic foam. All the three members are preferably circular in plan form.
The mounting member 40 has a cylindrical skirt 41 of which lower end 42 is adapted to be secured to the rim 13 of cont~iner 10 in positions surrounding the valve assembly 14.
The skirt 41 defines a gap 43 (shown in Fig~ 3). The mounting member 40 also has a ring 47 which is connected to the lower end 42 of skirt 41 by resilient holder means 4~. The mounting member 40 further has a finger tab 45 attached to the inner side of skirt 41 by a hinge 44 ~shown in Fig. 3), and a cylindrical limiting wall 49 rigidly connected to the lower end 42 of skirt I~l, The limiting wall 49 defines a gap 50 as shown in Fi~lre 3.
The ~inger tab 45 is extending across the axis defined by stem 15 and through gaps 43 and 50. The finger tab 45 has a hole 46 aligned with the axis defined by stem lS.
. ~ , .
. , ~ . , ~
- 14 ~
Both the ring ~7 and ~he holder means 4~ have some radial rigidity, while the later have substantial axial flexibility. Thereby, axial depression of rin~ ~7 would collapse the holder means 4~.
In this embodiment, flexible holder means ~ are three helical holAers, which can be simply molded integral with the lower end 42 of skirt 41. Presumably other means migth be utilized to enable the ring 47 to be resiliently depressible.
Referring to Figure 1, the collector member 20 has a tubular side wall 21 and a horizontal bottom wall 22 joined to the lower end of slde wall 21. The bottom wall 22 has a centrally located hole 23 there~hrough. The side wall 21 has a rounded top end 24 which is interrupted by a plurality of vent notches 25. The lower end of collector member 20 is restricted to provide a finger access to ~he finger tab 45 of mounting member ~0. The sid~ wall 21 also has a deep circular groove 26 cut from its bottom end. Groove 26 defines an end surface 27 in the vicinity of top end 24. The ring member ~7 of mounting member 40 is received in groove 26 and engaged with the end surface 27.
The val~e actuator member 60 has a head portion 61, a flange portion 62, and a shank portion 63. A discharge orifice 65 is directed radially outwardly from the center of the head portion 61. The shank portion 63 has a cylindrical outer surfa~ce which engages both the centrally located hole 23 of collector member Z0 and the hole 46 of finger tab 45 of mounting `:
, :
. .
.
, - 5 ~
member 40. The shank por~ion 63 also has lockin~ means 6~ which during assembly of dispensing head 1, can be forced through the hole 46 to engage the underside of finger tab 45. After that, the actuator member 60 is not being manuall~ disengageable from the hole 46. The shank portlon 63 further has a s~em engaging socket 66 and a bore 67 which communicates between the socket 66 and the discharge orifice 65.
The collector member 20 is attached to the finger tab 45 of mounting member 40 by its bottom wall 22. As the bottom wall 22 is compressed be~ween the flange 62 of actuator member 60 and the finger tab 45 of mounting member 40, sealing is provided between the flange 62 and the bottom ~Jall 22. Thereby product can not escape through the hole 23 when the collector member 20 is squeeæed~
In use, depression of finger tab 45 in a direction parallel to the axis defined by stem 15 and toward container 10, operates the actuator member 60 to discharge product from the container 10 into the collector member 20.
Figure 2 illustrates the dispensing head 1 with the collector member 20 is axially squeezed agalnst a surface 70, as indicated by the arrow~ In this m~nner, the ring 47 is pressed down against the helical hold~rs 4~ allowing product to escape from the collector member 20. The limiting wall ~9 is rising above both the finger tab 45 and the actuator member 60 to pro~ide a stop for th~ surface 70, whereby eliminating the inadvertent operation of actuator member 60.
- - :
. .
.
, ~ , . ; . .
~ 6 ~ Z
It may be seen, that the ring 1~7 is supporting the top end 24 of collector member 20 at all time~ Thereby the dispensing head l can be pressed sideways, in directions normal to the arrow, without squeeæing the collector member 20.
Although the collector member 20 is squeezable w~th lesser resistance ~han the preload of the compres~sion closing spring of valve assembly l~, the upper end of the skirt 4l is supporting the lower end of side wall 21 to take off the load from the finger tab 45.
After removing the pressure from the dispensing head 1, it reassumes its initial size and form, as shown in Figure l.
As ~ent notches 25 are provided, air can flow into ~he collector member 20 when it is being separated from the surface 70, thereby the top end 2~ of collector me~ber 20 would -not stick to the surface 70.
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,: ,: ~- : ~ :
~ ~ .
Claims (6)
1. A dispensing head for use with a pressurized container having an outlet valve, said dispensing head comprising:
(a) a mounting member having a generally cylindrical skirt portion, said skirt portion having a lower end attachable to said container in positions surrounding said outlet valve, said skirt portion defining a gap, said mounting member also having a finger tab portion hingedly connected to the inner side of said skirt portion and extending across the axis of said outlet valve and through said gap, said mounting member further having a ring portion rising above said finger tab portion and defining an axis, said ring portion having some radial rigidity, said ring portion is being axially connected to said lower end of said skirt portion by resilient holder means, whereby said ring portion is being resiliently depressible in axial direction toward said lower end of said skirt portion;
(b) a generally tubular resiliently squeezable collector member mounted on said mounting member and having a lower end and an upper end, said lower end is being engaged with said finger tab portion of said mounting member, said collector member also having a surface portion in the vicinity of its upper end which is being engaged with said ring portion of said mounting member; and (c) a valve actuator member mounted on said mounting member and engaged with said outlet valve, said valve actuator member providing fluid communication between said outlet valve and said collector member;
wherein depression of said upper end of said collector member in a direction parallel to said axis of said ring portion of said mounting member causes said collector member to squeeze, and pressing of said upper end in a direction normal to said axis of said ring portion fails to squeeze said collector member.
(a) a mounting member having a generally cylindrical skirt portion, said skirt portion having a lower end attachable to said container in positions surrounding said outlet valve, said skirt portion defining a gap, said mounting member also having a finger tab portion hingedly connected to the inner side of said skirt portion and extending across the axis of said outlet valve and through said gap, said mounting member further having a ring portion rising above said finger tab portion and defining an axis, said ring portion having some radial rigidity, said ring portion is being axially connected to said lower end of said skirt portion by resilient holder means, whereby said ring portion is being resiliently depressible in axial direction toward said lower end of said skirt portion;
(b) a generally tubular resiliently squeezable collector member mounted on said mounting member and having a lower end and an upper end, said lower end is being engaged with said finger tab portion of said mounting member, said collector member also having a surface portion in the vicinity of its upper end which is being engaged with said ring portion of said mounting member; and (c) a valve actuator member mounted on said mounting member and engaged with said outlet valve, said valve actuator member providing fluid communication between said outlet valve and said collector member;
wherein depression of said upper end of said collector member in a direction parallel to said axis of said ring portion of said mounting member causes said collector member to squeeze, and pressing of said upper end in a direction normal to said axis of said ring portion fails to squeeze said collector member.
2. A dispensing head as defined in claim 1, wherein said mounting member further includes a limiting wall portion rigidly connected to said lower end of said skirt portion, said limiting wall portion rising above both said finger tab portion and said valve actuator member to prevent inadvertent operation of said valve actuator member when said collector member is being squeezed.
3. A dispensing head as defined in claims 1 or 2, wherein said mounting member is made in one-piece construction.
4. A dispensing head as defined in claim 1, wherein the upper end of said skirt portion of said mounting member is supporting said lower end of said collector member to take off the load from said finger tab portion when said collector member is being squeezed.
5. A dispensing head as defined in claim 1, wherein said resilient holder means are a plurality of helical holders, said helical holders have substantial axial flexibility.
6. A dispensing head as defined in claim 1, wherein said upper end of said collector member further has a plurality of vent notches to prevent said upper end from sticking on a surface, against which said collector member is squeezed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2039032 CA2039032A1 (en) | 1991-03-25 | 1991-03-25 | Foam dispensing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2039032 CA2039032A1 (en) | 1991-03-25 | 1991-03-25 | Foam dispensing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2039032A1 true CA2039032A1 (en) | 1992-09-26 |
Family
ID=4147261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2039032 Abandoned CA2039032A1 (en) | 1991-03-25 | 1991-03-25 | Foam dispensing head |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2039032A1 (en) |
-
1991
- 1991-03-25 CA CA 2039032 patent/CA2039032A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |