US3261557A - Aerosol dispenser - Google Patents
Aerosol dispenser Download PDFInfo
- Publication number
- US3261557A US3261557A US329749A US32974963A US3261557A US 3261557 A US3261557 A US 3261557A US 329749 A US329749 A US 329749A US 32974963 A US32974963 A US 32974963A US 3261557 A US3261557 A US 3261557A
- Authority
- US
- United States
- Prior art keywords
- button
- passage
- port
- dispenser
- dispensed
- 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
-
- 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
- B65D83/16—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 characterised by the actuating means
- B65D83/20—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 characterised by the actuating means operated by manual action, e.g. button-type actuator or actuator caps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
- B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter
Definitions
- a more specific object of the invention is to provide the discharge port with an outwardly flaring, frustroconical portion which intersects the outer end of the boss at the juncture of said end with a cylindrical perimeter of the boss, thereby defining a circular knife-edge around the flared portion of the port at its extreme outer end.
- FIGURE 1 is a fragmentary central sectional view through an aerosol dispenser embodying one form of the invention, with the button shown in closed position;
- FIGURE 2 is an enlarged fragmentary vertical sectional view through the button bisecting its discharge port
- FIGURE 3 is a top plan view of the button
- the container 8 is adapted to contain a liquid to be dispensed as a spray such as insecticide or room deodorizer to be dispensed by spraying the liquid from the novel button 2, and the container also is adapted to 3,261,557 Patented July 19, 1966 ice contain a propellant gas under superatmospheric pressure, which gas boils at atmospheric pressure and room temperature. The gas may or may not be readily soluble in the liquid.
- the gas may be, for example, a fluorinated hydroc'arbon such as dichlorodifluoromethane or a hydrocarbon such as isobutane, and is at a minimum pressure in the container of the order of 25 pounds per square inch absolute at F. Generally pounds per square inch absolute is considered to "be a safe maximum.
- the outlet passage 18 is connected to a discharge port 20 having an outwardly flared frustro-conical portion 22 extending through an external cylindrical boss 24 on the button within a cylindrical recess 26 in the outer surface of the button.
- the port portion 22 intersects the outer end 28 of the boss 24 at the juncture of said end 28 with a cylindrical perimeter 30 of the boss to define a knife-edge 32 which is in the form of -a circle struck from the longitudinal axis XX of the port 20.
- the button 2 is depressed as by finger pressure on a top surface 34 of the button, whereupon a head 50 on the stem is urged downwardly within a chamber 52 of a valve body 54 until a port 56 of the stem 4 is released from a sealing gasket 58, whereupon the dispensed liquid is forced through the stem port 56 upwardly through the hollow stem and through the passage 18 into the discharge port 20 from which the dispensed liquid is sprayed by the pressure of the propellant gas in the container 8.
- the invention is also applicable to other dispensed products such as fine powder which tend to build up around the terminal orifice of the dispensing port.
- a button for an aerosol dispenser containing a product to be dispensed and a propellant gas under superatmospheric pressure to force said product from said dispenser upon actuation of said button
- a passage in the button adapted for connection to said dispenser, and a discharge port through said button and connected to said passage, said port having a uniform diameter with an annular knife-edge surface defining its radially outer perimeter at the end thereof remote from said passage whereby build-up of drops of liquid at said knife edge is prevented.
- a button for an aerosol dispenser containing a product to be dispensed and a propellant gas under super- 3 4 atmospheric pressure to force said product from said References Cited by the Examiner dispenser when said button is actuated;
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
Description
y 19, 1966 J. E. GREENEBAUM 11 3,261,557
AEROSOL DISPENSER Filed Dec. 11, 1965 INVENTOR.
United States Patent 3,261,557 AEROSOL DISPENSER James E. Greenbaum II, Highland Park, 111., assignor, by mesne assignments, to Seaquist Valve Company, a Division of Pittsburgh Railways Company, Cary, Ill., a corporation of Pennsylvania Filed Dec. 11, 1963, Ser. No. 329,749 2 Claims. (Cl. 239-579) This invention relates to dispensers of the type generally designated as aerosol dispensers wherein a sealed container is provided with normally closed manually opening valve means for releasing from the container a dispensable fluid under superatmospheric pressure within the container.
Many prior art aerosol dispensers are known wherein the dispensed fluid is a liquid having a high solubility for a propellant gas whereby as the dispensed liquid enters the atmosphere the propellant gas expanding rapidly atomizes the dispensed liquid in a fine spray or foam.
According to the present invention, it has been discovered, particularly with respect to water based products, that foam tends to build up around the edge of the discharge orifice into tiny droplets which are ultimately discharged as inelfective or undesirable particles of the product which is dispensed in a spray.
A primary object of the present invention is to devise an aerosol dispenser wherein the dispensing port is formed in a button and defines with a boss thereon a circular orifice adapted to be connected to the dispensed liquid within the container by manual depression of the button, said orifice being formed and arranged to prevent build-up of foamed liquid.
A more specific object of the invention is to provide the discharge port with an outwardly flaring, frustroconical portion which intersects the outer end of the boss at the juncture of said end with a cylindrical perimeter of the boss, thereby defining a circular knife-edge around the flared portion of the port at its extreme outer end.
The foregoing and other objects and advantages of the invention will become apparent from a consideration of the following specification and the accompanying drawings, wherein:
FIGURE 1 is a fragmentary central sectional view through an aerosol dispenser embodying one form of the invention, with the button shown in closed position;
FIGURE 2 is an enlarged fragmentary vertical sectional view through the button bisecting its discharge port;
FIGURE 3 is a top plan view of the button; and
FIGURE 4 is a front elevational view of the button taken from the right as seen in FIGURE 1.
Describing the invention in detail and referring first to FIGURE 1, it will be seen that a preferred embodiment of the novel button 2 is illustrated as applied to a hollow valve stem 4 of a conventional aerosol dispenser 6 comprising a steel container 8 having a spun connection as at 10 to a steel mounting cup 12.
The container 8 is adapted to contain a liquid to be dispensed as a spray such as insecticide or room deodorizer to be dispensed by spraying the liquid from the novel button 2, and the container also is adapted to 3,261,557 Patented July 19, 1966 ice contain a propellant gas under superatmospheric pressure, which gas boils at atmospheric pressure and room temperature. The gas may or may not be readily soluble in the liquid.
The gas may be, for example, a fluorinated hydroc'arbon such as dichlorodifluoromethane or a hydrocarbon such as isobutane, and is at a minimum pressure in the container of the order of 25 pounds per square inch absolute at F. Generally pounds per square inch absolute is considered to "be a safe maximum.
The novel button 2 is press-fitted as at 16 on the stem 4 which extends into a cylindrical stem passage formed within the button 14. The button also comprises an outlet passage 18 communicating with the interior of the stem 4.
The outlet passage 18 is connected to a discharge port 20 having an outwardly flared frustro-conical portion 22 extending through an external cylindrical boss 24 on the button within a cylindrical recess 26 in the outer surface of the button.
The port portion 22 intersects the outer end 28 of the boss 24 at the juncture of said end 28 with a cylindrical perimeter 30 of the boss to define a knife-edge 32 which is in the form of -a circle struck from the longitudinal axis XX of the port 20.
In operation of the novel device, the button 2 is depressed as by finger pressure on a top surface 34 of the button, whereupon a head 50 on the stem is urged downwardly within a chamber 52 of a valve body 54 until a port 56 of the stem 4 is released from a sealing gasket 58, whereupon the dispensed liquid is forced through the stem port 56 upwardly through the hollow stem and through the passage 18 into the discharge port 20 from which the dispensed liquid is sprayed by the pressure of the propellant gas in the container 8.
As the dispensed liquid travels outwardly, some of the spray follows the Wall defining the port 22 and its outwardly flared portion 22, thereby spreading or blooming the spray to a desirable extent.
It will be understood that as the dispensed liquid is urged from port portion 22, there is no tendency for foamed liquid to build up around the terminal orifice defined by the knife-edge 32, as in prior art buttons where such foamed liquid builds up to drops, each appropriately the size of a pin head or larger agglomeration, said drops eventually being discharged as ineffective or undesirable particles in the spray.
The invention is also applicable to other dispensed products such as fine powder which tend to build up around the terminal orifice of the dispensing port.
What is claimed is:
1. In a button for an aerosol dispenser containing a product to be dispensed and a propellant gas under superatmospheric pressure to force said product from said dispenser upon actuation of said button, the combination of a passage in the button adapted for connection to said dispenser, and a discharge port through said button and connected to said passage, said port having a uniform diameter with an annular knife-edge surface defining its radially outer perimeter at the end thereof remote from said passage whereby build-up of drops of liquid at said knife edge is prevented.
2. In a button for an aerosol dispenser containing a product to be dispensed and a propellant gas under super- 3 4 atmospheric pressure to force said product from said References Cited by the Examiner dispenser when said button is actuated; the combination UNITED STATES PATENTS of a passage in the button adapted for COHIECUOH to said dispenser, a cylindrical boss projecting from an external 2,861,723 11/1958 Cooksley 222-394 surface thereof, a discharge port extending through said 5 3,003,755 10/1961 Peras 239*579 button and said boss and connected to said passage, said 3,054,210 9/ 1962 Kratzer et a1 239573 port having a uniform diameter and flaring radially out- 3,085,720 4/1963 Bosh at 239573 wardly and intersecting the cylindrical perimeter of said 3,169,677 2/1965 Focht 222-394 boss to define an annular knife-edge surface at the end thereof remote from said passage whereby buildup of 10 HENSON WOOD Primary Exammer' drops of liquid at said knife edge is prevented. R. S. STROBEL, Assistant Examiner.
Claims (1)
1. IN A BUTTON FOR AN AEROSOL DISPENSER CONTAINING A PRODUCT TO BE DISPENSED AND A PROPELLANT GAS UNDER SUPER ATMOSPHERIC PRESSURE TO FORCE SAID PRODUCT FROM SAID DISPENSER UPON ACTUATION OF SAID BUTTON, THE COMBINATION OF A PASSAGE IN THE BUTTON ADAPTED FOR CONNECTION TO SAID DISPENSER, AND A DISCHARGE PORT THROUGH SAID BUTTON AND CONNECTED TO SAID PASSAGE, SAID PORT HAVING A UNIFORM DIAMETER WITH AN ANNULAR KNIFE-EDGE SURFACE DEFINING ITS RADIALLY OUTER PERIMETER AT THE END THEREOF REMOTE FROM SAID PASSAGE WHEREBY BUILD-UP OF DROPS OF LIQUID AT SAID KNIFE EDGE IS PREVENTED.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US329749A US3261557A (en) | 1963-12-11 | 1963-12-11 | Aerosol dispenser |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US329749A US3261557A (en) | 1963-12-11 | 1963-12-11 | Aerosol dispenser |
Publications (1)
Publication Number | Publication Date |
---|---|
US3261557A true US3261557A (en) | 1966-07-19 |
Family
ID=23286839
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US329749A Expired - Lifetime US3261557A (en) | 1963-12-11 | 1963-12-11 | Aerosol dispenser |
Country Status (1)
Country | Link |
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US (1) | US3261557A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3567081A (en) * | 1969-01-30 | 1971-03-02 | Philip Meshberg | Multidirectional aerosol dispenser |
US4071196A (en) * | 1975-08-28 | 1978-01-31 | Vca Corporation | Aerosol valve tip and insert assembly |
FR2677274A1 (en) * | 1991-05-14 | 1992-12-11 | Leiras Oy | AEROSOL NOZZLE HAVING AN EXPANSION CHAMBER WHOSE WALL IS PERCEIVED WITH A NOZZLE ORIFICE. |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861723A (en) * | 1954-04-29 | 1958-11-25 | Pressure Packaging Corp | Two way resilient valve for pressurized containers |
US3003755A (en) * | 1958-11-28 | 1961-10-10 | Renault | Adjustable devices for metering and emulsifying gaseous and liquid substances |
US3054210A (en) * | 1958-11-21 | 1962-09-18 | Union Carbide Corp | Dust and liquid spray device |
US3085720A (en) * | 1959-08-05 | 1963-04-16 | Rhone Poulenc Sa | Atomising discharge valves |
US3169677A (en) * | 1961-12-20 | 1965-02-16 | Precision Valve Corp | Valve mechanism with metering ball for aerosol pressure containers |
-
1963
- 1963-12-11 US US329749A patent/US3261557A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2861723A (en) * | 1954-04-29 | 1958-11-25 | Pressure Packaging Corp | Two way resilient valve for pressurized containers |
US3054210A (en) * | 1958-11-21 | 1962-09-18 | Union Carbide Corp | Dust and liquid spray device |
US3003755A (en) * | 1958-11-28 | 1961-10-10 | Renault | Adjustable devices for metering and emulsifying gaseous and liquid substances |
US3085720A (en) * | 1959-08-05 | 1963-04-16 | Rhone Poulenc Sa | Atomising discharge valves |
US3169677A (en) * | 1961-12-20 | 1965-02-16 | Precision Valve Corp | Valve mechanism with metering ball for aerosol pressure containers |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3567081A (en) * | 1969-01-30 | 1971-03-02 | Philip Meshberg | Multidirectional aerosol dispenser |
US4071196A (en) * | 1975-08-28 | 1978-01-31 | Vca Corporation | Aerosol valve tip and insert assembly |
FR2677274A1 (en) * | 1991-05-14 | 1992-12-11 | Leiras Oy | AEROSOL NOZZLE HAVING AN EXPANSION CHAMBER WHOSE WALL IS PERCEIVED WITH A NOZZLE ORIFICE. |
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