US3559851A - Fully-emptying valve assemblage - Google Patents
Fully-emptying valve assemblage Download PDFInfo
- Publication number
- US3559851A US3559851A US828122A US3559851DA US3559851A US 3559851 A US3559851 A US 3559851A US 828122 A US828122 A US 828122A US 3559851D A US3559851D A US 3559851DA US 3559851 A US3559851 A US 3559851A
- Authority
- US
- United States
- Prior art keywords
- cup
- valve
- valve housing
- housing
- assemblage
- 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.)
- Expired - Lifetime
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Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M15/00—Inhalators
- A61M15/009—Inhalators using medicine packages with incorporated spraying means, e.g. aerosol cans
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D83/00—Containers or packages with special means for dispensing contents
- B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
Definitions
- Gibner Lehmann ABSTRACT An aerosol valve assemblage comprising a tubular valve housing for disposition within a container, said housing having an end inlet opening and carrying a collector cup the rim and adjoining portions of which are slightly spaced from the valve housing and sealing gasket thereon. The said spacing constitutes a collecting area into which the last amount of liquid product can collect, to be dispensed through the valve housing when the container is in inverted position.
- This invention relates to valves of aerosol dispensers, and more particularly to fully-emptying valves of the type disposed within the bottle or container for the product.
- Prior fully-emptying aerosol valves were either disposed outside of the container where they undesirably occupied space needed for other purposes, or else if disposed inside the container were not entirely effective in enabling the last remnants of the liquid product to be expelled.
- valve assemblage as above, which has a one-piece component arranged to be readily applied as an attachment to existing valve housing, said component being especially simple, economical to produce, readily molded of plastic substance, and effective and reliable in its operation.
- FIG. 1 is a fragmentary axial sectional view of the upper portion of an aerosol dispenser in nonuse or storage condition, incorporating the improved valve assemblage of the invention.
- FIG. 2 is a view like that of FIG. 1, but showing the dispenser in its inverted position with the valve assemblage in the discharging condition.
- FIG. 3 is a top plan view of the fully-emptying component or attachment of the improved valve assemblage.
- FIG. 4 is an axial sectional view of the fully-emptying attachment, taken on the line 4-4 of FIG. 3.
- the valve assembly illustrated in FIGS. 1 and 2 includes a valve of the well known metering type, comprising a valve stem having multiple valving elements whereby a sequential valving action is had to effect the metering.
- a well-known type of nonmetering valve may be utilized as well, since the invention has utility for both metering and nonmetering types of valves.
- the valve stem 10 is slidably carried in a generally tubular valve housing 12 comprising a tubular upper body portion 14 and a tubular lower body portion 16, said body portions having between them an external flat annular mounting flange 18.
- the lower body portion 16 has a tip or extremity 20 of reduced diameter, forming an external annular shoulder 22 for purposes later to be brought out.
- an inverted metal mounting cup 24 Surrounding and engaging with the upper body portion 14 and mounting flange 18 is an inverted metal mounting cup 24 having a central raised portion 26 closely fitted to the upper body portion 14 of the valve housing.
- the cup portion 26 is apertured to accommodate the valve stem 10, and clamps a valve seat or diaphragm 28 against the top end of the valve housing as shown.
- the lower body portion 16 of the valve housing has a stepped bore 30, 32 in which there is formed an internal annular shoulder 34 engaged with a valve seat comprising a rgsilient washer 36 and a stiff washer 38, the latter being engaged by a helical compression coil spring 40 which also en gages a valve shoulder 42 on the stem 10.
- the upper stem portion, above the valve shoulder 42 is hollow, and has a side aperture 44 normally disposed above the valve seat or diaphragm 28.
- the valve shoulder 42 held in engagement with the seat 28 by the spring 40, prevents discharge of liquid product from the dispenser.
- the side opening 44 of the stem is shifted past the valve seat 28, thereby permitting the liquid contents within the valve housing 12 to be discharged through the (upper) hollow portion of the stem 10 and through a usual type of mouthpiece 46 shown in broken outline.
- the lower portion of the valve stem 10 has a flat 48 on one side, whereby a second valving action is had in conjunction with the washers 36, 38 to close off the valve housing from the contents of the container at the time that the valve stem is depressed to place the upper valve 42, 28 in the open condition.
- a metering action is thus had, as is well known in the art, which accordingly requires no further explanation herein except to note that the upper and lower valves open and close alternately during the axial movement of the stem 10.
- the valve housing 12 has an inlet opening 50 in its lower tip portion 20, through which the liquid product from the container 52 passes to reach the interior of the housing.
- the metal mounting cup 24 clamps an annular sealing element or washer 54 between the mounting flange 18 of the valve housing and the top rim 56 of the container.
- the sealing washer 54 fits snugly about the body portion 16 of the valve housing as shown.
- a simple and unique, advantageous attachment is provided to be carried by the lower body 16 of the valve housing 12 for the purpose of enabling the liquid contents of the container 52 to be fully emptied when the container is in inverted, discharging position with the valve stem 10 depressed as illustrated in FIG. 2.
- the said attachment comprises a collector cup 58 which surrounds and is carried by the depending portion of the valve housing 12, comprising the body parts 16, 20.
- the collector cup 58 has its rim and adjoining portions 60, 62 respectively disposed to be free of and spaced from the valve housing 12 and the sealing washer or gasket 54, whereby it forms therewith an annular storage space 64, 66 for drawing in and collecting the liquid product of the dispenser.
- the collector cup 58 also has means providing a conduit, comprising an internal groove 68 which effects communication between the annular storage space 64, 66 and the intake opening 50 of the valve housing 12.
- the cup 58 has a stepped bore as clearly seen in the FIGS., comprising a small-diameter portion 70 which is adapted to frictionally fit and seize the tip part 20 of the valve housing 12 and a large-diameter portion 72 which encircles the body part 16 of the valve housing in spaced relation thereto, to provide the storage space 66.
- the cup 58 has a bottom wall 74 and an internal shoulder 76 which is engageable with the external shoulder 22 of the valve housing 12 for the purpose of properly positioning the cup 58 on the housing to establish the annular storage space 64 between the rim 60 of the cup and the sealing gasket 54.
- the internal groove 68 of the collector cup extends into the smalldiameter bore portion of the cup whereby the groove provides a degree of yieldability to the cup, enabling a press-fit to be readily established with the tip part 20, without resorting to critical tolerances.
- Both the cup 58 and the valve housing 12 are molded of plastic substance having a certain degree of resilience or yieldability, as will be understood.
- the annular storage space 64, 66 is sufficiently small or narrow in section to have a capillary action whereby liquid which is in contact with the sealing gasket 54 will be drawn into the storage space, and into the conduit or groove 68. Accordingly, it will be understood when considering FIG. 2 where the container is inverted, that by virtue of the shape and disposition of the collector cup 58 and the capillarity mentioned above the valve assembly will be able to discharge virtually all of the liquid contents of the container. The last remaining portions of the liquid will collect above the gasket 54 (with the container inverted) whereupon such portions will flow into the storage space 64, 66 and the conduit 68. so as to be discharged into the valve housing 12 and ultimately from the depressed stem and mouthpiece 46.
- valve assemblage comprising the onepiece collector cup or component 58 has a number of advantages. lt not only provides for economical utilization of all of the liquid contents of the container 52. but the cup 58 may be readily applied as an attachment to an existing valve housing, is especially simple, economical to produce, readily molded of plastic substance, and is also effective and reliable in its operation. The provision of the collector cup 58 does not interfere with the assemblage of the valve to the container 52, and does not require a special arrangement wherein the valve housing is located externally of the container neck.
- a valve assemblage for an aerosol dispenser comprising in combination:
- said housing including a depending portion having an intake opening, disposed below said gasket;
- said cup having its rim and adjoining portions free of and spaced from said housing and said sealing gasket and forming therewith an annular storage space for liquid product of the dispenser;
- said cup having a conduit effecting communication between said annular storage space and the intake openmg of the valve housing;
- annular storage space serving to collect the last remaining portions of the liquid product when the dispenser is inverted with the valve housing lowermost.
- the depending portion of the valve housing comprises a reduced-diameter tip part and a larger-diameter body part adjoining the tip part. said depending portion having an annular external shoulder at the juncture of said tip part and body part;
- said collector cup having a stepped bore forming an internal annular shoulder engaged with the shoulder of the valve housing, thereby to position the rim of the cup in said spaced relation to the sealing gasket.
- the collector cup rim and adjoining portions surround said body portion of the valve housing and have a larger bore diameter than the remainder of the cup, said conduit of the cup comprising a groove disposed in the stepped bore and extending from the rim to the cup bottom.
- the intake opening of the valve housing is at the end of said reduced-tip part
- the bottom wall of the collector cup being spaced from said tip part and communicating with said groove.
- the collector cup is press-fitted on the reduced-diameter tip part of the valve housing;
Abstract
Description
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US82812269A | 1969-05-27 | 1969-05-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3559851A true US3559851A (en) | 1971-02-02 |
Family
ID=25250971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US828122A Expired - Lifetime US3559851A (en) | 1969-05-27 | 1969-05-27 | Fully-emptying valve assemblage |
Country Status (1)
Country | Link |
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US (1) | US3559851A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3809294A (en) * | 1973-06-27 | 1974-05-07 | American Cyanamid Co | Dispensing lung contacting powdered medicaments |
US3994421A (en) * | 1975-09-29 | 1976-11-30 | American Cyanamid Company | Unitary therapeutic aerosol dispenser |
US4407481A (en) * | 1980-05-16 | 1983-10-04 | Neotechnic Engineering Limited | Valve assembly for a pressurized aerosol-dispensing container |
US6251952B1 (en) | 1991-01-24 | 2001-06-26 | Belmar Corporation | Method of using lachrymatory agents for moisturizing the eyes |
-
1969
- 1969-05-27 US US828122A patent/US3559851A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3809294A (en) * | 1973-06-27 | 1974-05-07 | American Cyanamid Co | Dispensing lung contacting powdered medicaments |
US3994421A (en) * | 1975-09-29 | 1976-11-30 | American Cyanamid Company | Unitary therapeutic aerosol dispenser |
US4407481A (en) * | 1980-05-16 | 1983-10-04 | Neotechnic Engineering Limited | Valve assembly for a pressurized aerosol-dispensing container |
US6251952B1 (en) | 1991-01-24 | 2001-06-26 | Belmar Corporation | Method of using lachrymatory agents for moisturizing the eyes |
US6297289B2 (en) | 1991-01-24 | 2001-10-02 | Belmar Corporation | Product for moisturizing an eye |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SPECIALTY PACKAGING PRODUCTS, INC. Free format text: CHANGE OF NAME;ASSIGNOR:ETHYL PRODUCTS COMPANY;REEL/FRAME:004233/0852 Effective date: 19840201 |
|
AS | Assignment |
Owner name: UNITED VIRGINIA BANK A VA BANKING CORP Free format text: SECURITY INTEREST;ASSIGNOR:SPECIALTY PACKAGING PRODUCTS, INC. A VA CORP;REEL/FRAME:004234/0112 Effective date: 19840201 |
|
AS | Assignment |
Owner name: SPECIALTY PACKAGING LICENSING COMPANY, 1209 ORANGE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SPECIALTY ACQUISITION CORPORATION, A CORP OF DE.;REEL/FRAME:004538/0400 Effective date: 19860228 Owner name: SPECIALTY ACQUISITION CORPORATION, 804 MOOREFIELD Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SPECIALTY PACKAGING PRODUCTS, INC., A CORP OF VA.;REEL/FRAME:004535/0086 Effective date: 19860331 |