A dual dispensing pack includes a dual dispensing pump head having a first pumping assembly and a second pumping assembly. The first pumping assembly is operatively coupleable to a first bottle and the second pumping assembly is operatively coupleable to a second bottle. The first pumping assembly includes a first piston, and the second pumping assembly includes a second piston. A stroke length of the first piston is the same as a stroke length of the second piston, and a volume dispensed by the first pump assembly is independently varied from a volume dispensed from the second pump assembly.

The present invention relates to an airless cosmetic container comprising: a lower container (10) having an opened lower part; an inner container (20) which is a cylindrical member inserted through the upper opening of the lower container (10) and having a closed lower part, and which has an upper outer flange (21) mounted on and assembled to the upper end of the lower container (10); a container cover (30) which is a cylindrical member for covering the upper opening of the inner container (20), and of which a lower protruding groove (31) protruding downwards from the center thereof is positioned in a cylinder (22) protruding from the center of the inner container (20) and an outer end (32) is coupled to two vertical protruding rods (23) protruding toward the upper part of the upper outer flange (21) of the inner container (20); a cylindrical spring (40) coupled in the container cover (30); a disc-shaped upper lid (50), having a recessed upper surface, coupled to the upper part of the cylindrical spring (40); a disc-shaped lower lid (60), which is a member coupled to the lower surface of the center of the upper lid (50), has a discharge hole (61) formed in the center thereof, and has a fastening cylinder (62) formed at the lower part of the discharge hole (61); a pump body (70) coupled to the fastening cylinder (62) of the lower lid (60) and inserted into the lower protruding groove (31) of the container cover (30); an exhaustion piston (80) coming in close contact with the inner periphery of the inner container (20) and the outer periphery of the cylinder (22) protruding in the center thereof, so as to rise as cosmetic contents are used; and an upper case (100) which is a cylindrical member for covering the upper side of the lower container (10), and of which one side is hinge-coupled to one side wall of the lower container (10) and the other side is hooked and coupled to an opening/closing button (90). The present invention has effects of: preventing external air from flowing into an upper cylinder since the inner diameter of the discharge hole is formed to be smaller than the inner diameter of the fastening cylinder of the lower lid such that, when a piston support and the lower lid are coupled, the upper end surface of a center hole of the piston support comes in close contact with, that is, overlaps with the lower surface of the discharge hole in the fastening cylinder of the lower lid, so as to reinforce faste

A dispensing container capable of changing the ratio between the amounts of two kinds of contents to be dispensed, includes two container bodies, two pumps including two stems, an adjusting member configured to press the stems and to be rotatable about an axis extending in a substantially vertical direction, and a pressing head configured to, in response to a depressing operation, rotate about an axis extending in a substantially horizontal direction, to thereby depress the stems via the adjusting member. The adjusting member includes a plurality of pressing portions against which the stems are pressed, and when the adjusting member is rotated about the axis, a depressing stroke of the one of the plurality of pressing portions on the side of one of the stems becomes shorter, and a depressing stroke of the other one of the plurality of pressing portions on the side of the other stem becomes longer.

Locking features of a pump system may include projections and corresponding features on a piston stem and lock cylinder of a pump system such that the features are configured to require an increased amount of force to rotate and unlock the piston stem from the lock cylinder.

A dispensing system includes a container containing a flowable base formulation to be dispensed, an additive mixing device, and an actuable pump engine which draws the flowable base formulation from the container and pumps it through the mixing device. The additive mixing device includes a body with an internal cavity, an additive ingredient within the cavity, and a flow path/mixing chamber between an input and an output. With each pump of the device the additive ingredient is introduced into, and mixed with, a flow of the base formulation traveling through the mixing device. Multiple additive mixing devices may be interchangeable for different formulations, and the mixing devices may be refillable.

An all plastic compression spring assembly includes a slotted tubular spring element formed from a tensile polymer material and upper and lower loading cones received at opposing upper and lower ends of the slotted tubular spring element. The upper loading cone may be axially compressible towards the lower loading cone within the slotted tubular spring element whereby the slotted tubular spring element radially expands in tension to create an opposing radial contraction force, and in turn, an axial extension spring force. When released, the spring element elastically returns to its normal at rest shape, returning the cones to their normal at rest positions. In some dispenser configurations, the lower loading cone may be stationary or fixed within the dispensing head and the upper loading cone may be downwardly compressible toward the lower loading cone by movement of a nozzle head.

Disclosed is a metering pump comprising a housing that extends from an inlet region to an outlet and surrounds a piston which is urged into a starting position by a compression spring. In the metering pump the stop limiting the lifting stroke of the piston is formed by the lower end of the piston coming in contact with the inlet portion.

An elastic member for a pump assembly is provided. The elastic member may include an upper support; a lower support provided under the upper support; and a connection part which connects the upper support and the lower support, and in which peaks and valleys are repeatedly formed in an outward direction to be bent when the elastic member is pressurized.

An elastic member for a pump assembly is provided. The elastic member may include an upper support; a lower support provided under the upper support; and a connection part which connects the upper support and the lower support, and in which peaks and valleys are repeatedly formed in an outward direction to be bent when the elastic member is pressurized.

A disinfection device (la) for applying a disinfectant to at least one fingertip (F) of a user comprises a housing (6; 6a, 6b) with a recess (4) accessible from the outside through an opening (3), into which recess the fingertip can be inserted, a spray unit (8) inside the housing, and a container (7) for disinfectant fluidly connected to the spray unit. The spray unit comprises a spray head (2) which projects into the recess and a valve device (9a) which is fluid-connected to the spray head and is designed in such a way that, when the spray head is actuated by means of the fingertip, it releases disinfectant from the container as an aerosol into the recess so that the aerosol can wet the fingertip.