Abstract:
An aerosol product wherein one of hollow spaces of a two-chamber-container, which is divided into two by a movable and content-separable partition wall, is filled with a material to be discharged, the other hollow space being filled with a pressurizing compressed gas comprising a mixed compressed gas of at least two kinds of gases, at least a part of the partition wall being compressed gas-permeable, the mixed compressed gas being passed through the partition wall selectively and dissolved in the content to be discharged, whereby the content becomes able to be discharged.
Abstract:
A dual receptacle aerosol sprayer (10) with a thin, flexible plastic outer receptacle (11) for product (12) and a substantially rigid inner receptacle (13) for propellant (14) seated within the outer receptacle (11). A closure (15) closes the inner receptacle (13) and contains a valve assembly (18). Primary propellant and secondary product valves (70, 80) in the valve assembly (18) control flow from the inner and outer receptacles (11, 13) up propellant and product valve stem bores (42, 43) into an actuator (21) having an aspirating nozzle insert (29) with a Venturi constriction (30). A conduit (22) extends from the valve assembly (18) through the inner receptacle (13) and into the outer receptacle (11). To avoid propellant overloading and rupture of the outer receptacle (11), a one-way tertiary valve (31) downstream of the secondary product valve (80) closes on clogging of the actuator discharge outlet (32) to prevent, during actuation, misdirected propellant flow from the actuator (21) and through the stem product bore (42) and the secondary product valve (80), from entering the outer product-containing receptacle (11).
Abstract:
A valve mounting assembly for an aerosol container comprising a mounting cup and a sleeve gasket initially positioned on at least a substantial portion of the skirt of the mounting cup. The sleeve gasket has an axial height and radial thickness of from about 0.080 to 0.150 inches and from about 0.030 to 0.060 inches, respectively; said dimension being preferably from about 0.090 to 0.140 inches and from about 0.035 to 0.055 inches, respectively and said dimensions most preferably being from about 0.100 to 0.130 inches and from about 0.040 to 0.050 inches. In a method herein, the gasket is advanced onto the skirt of the mounting cup, and then advanced into the annular channel of the mounting cup and deformed about 90° to form a gasket of dimensions equivalent to a cut gasket. The gasket may be cut from an extruded tube of gasket material, which can be cut to very precise longitudinal dimensions. When the gasket is turned about 90° in the channel of the mounting cup, the gasket is turned into a shape approximately that of a cut gasket and the original axial dimension of the gasket becomes its radial thickness. In this way, a cut gasket shape can be achieved having precise inner and outer dimensions without requiring any milling of the gasket material, as has been previously required with extruded cut gaskets. Also, if desired, the gasket may be heated, or an adhesive may be used, to hold the gasket in the desired shape in the annular channel of the mounting cup.
Abstract:
A consumer product passage incorporating a mixing chamber (96) for mixing air and liquid. Consumer packages of the present invention are capable of providing excellent spray qualities at typical consumer product flow rates (e.g., less than about 1.0 cubic centimeters per second) while simultaneously maintaining relatively low air to liquid ratios (e.g., less than about 0.06:1 on a mass basis) and relatively low pressures (e.g., less than about 50 psi). The package of the present invention also offers significant environmental and safety advantages. For example, it does not depend upon dissolved propellants; and it permits the use of water in place of volatile solvents as thinning agents since high surface tension fluids are actually sprayed better. Several packages of the present invention are illustrated, including a standard aerosol version, pump and spray versions, and a finger pump version.
Abstract:
Example implementations relate to replaceable hoppers of a print apparatus. In some examples, a system may include a connection component integrated with a replaceable hopper. The connection component may include an input flow conduit positioned adjacent to and associated with an output flow conduit and an electrical connection.
Abstract:
An aerosol product capable of surely injecting a constant amount of aerosol composition containing powder, wherein the aerosol composition comprising a stock solution mixed with powder, liquefied gas, and compressed gas is filled into an aerosol container having a liquid sump part and a valve, shielding the inside of a container main body from a liquid sump part by injection operation, in a passage between the inside of the container main body and an injection hole in an injection member.
Abstract:
A pressure control device (1) for maintaining a constant predetermined pressure in a container which is arranged for dispensing a fluid contained in the container from the container at said pressure, the pressure control device comprising a first (4) chamber and a second chamber (6), as well as at least one closing member (8) movable relative to the second chamber for releasing and closing a fluid connection between the first chamber and the container depending on the position of the closing member relative to the second chamber. The first chamber is filled with a gas which, in use, has a higher pressure than the pressure in the container. The second chamber is located outside the first chamber.
Abstract:
A dispensing apparatus for dispensing a product from a container under pressure of a propellant by means of a composite piston (138). The apparatus has a valve (104) operated by means of an actuator (108) and a lever (166). The actuator cooperates with the valve and lever by means of a screw thread arrangement (110), such that turning actuator relative to the lever varies the flow rate of product out of the apparatus. The valve is a hollow cylindrical tube (104) which is open at one end and closed at the second end, either permanently or by means of a flap valve (112) which allows insertion of the product. A number of ports (116) are arranged around the circumference of the tube (104) adjacent to the second end to allow product to flow through the valve when the lever is operated. The composite piston (138) comprises a first piston (140a) coupled to a second piston (140b) by mutually engageable central stems (142a, b) and enclosing between the pistons a viscous substance which contacts the inside wall of the container to provide an effective seal. The piston arrangement of the apparatus stays together without the need for "necking in" the can and the apparatus can be filled with product by the manufacturer.
Abstract:
Method for generating pressure in a spray can and the like, whereby at least two products (8-9) are brought into contact with each other such, that, by doing so, a gas is produced and, thereby, a gas pressure is created, characterized in that the products (8-9) are brought together via a passage (12), whereby the flow rate via this passage (12) is controlled by means of a movable element (18-50-56-68) which, in its turn, is controlled by the gas pressure prevailing around the device.