A valvular conduit, preferably a Tesla valvular conduit, in which a plug member is coaxially received within a bore in a sleeve member and in which passageways are defined between the plug member and the sleeve member within interior walls configured to permit mixing of fluid flowing through the passageways in at least one direction, preferably, the relatively free passage of fluid through the passageways upstream but increased the resistance to downstream flow of the fluid through each passageway.

A wobble plate for a sequentially activated multi-diaphragm foam pump includes three or more wings, a wobble plate shaft, and an aperture located in each of the three or more wings. A first wing is configured to have a first distance from first contact surface of a first pump diaphragm. A second wing is configured to have a second distance from a first contact surface on a second pump diaphragm, and a third wing is configured to have substantially the second distance from a first contact surface on a third pump diaphragm.

Fluid product dispenser (D) having a reservoir (R) defining a bottom (R1) and an opening (R2), and a dispensing head (T) integrating a dispensing member (P) defining a vent path through which outside air can penetrate into the reservoir (R). The dispensing member (P) has a dip tube (TP) that extends into the reservoir (R), the dip tube (TP) having an inlet (Ti) close to the bottom (R1) of the reservoir (R). The inlet (Ti) of the dip tube (TP) is provided with a shut-off valve (V) having a movable member (V6) and a seat (V5), the movable member (V6) is urged into sealed contact with the seat (V5) by the fluid product when the dispenser (D) is upside down, while the movable member (V6) is urged away from the seat (V5) by the fluid product when the dispenser (D) is upright.

A foam discharge container is a foam discharge container for discharging foam in response to a pushing operation, and includes a discharge port which is opened in a direction opposite to a pushing direction of the pushing operation and discharges foam, and a pushing portion that keeps the distance between a discharge target body receiving foam and the discharge port constant.

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.

An upside-down pump wherein the pump core assembly includes outer and inner pump bodies, the center hole of the piston in the inner pump body adjoins a connecting rod, which fits with the liquid inflow cavity and the outer diameter includes a spring, the outer diameter ring of the valve sleeve includes a side thru-hole, the inner diameter bottom hole of the inner pump includes a second ball and extends from the suction pipe hole on one side of the external pump and fits with the first thru-hole on one side of the connecting sleeve and has an annular clearance, the second thru-hole opposite the first fits with one end of the pipe, the coupling joint has a first ball, the bottom of the connecting sleeve has a base sleeve, the knurled column is inserted into the auxiliary hole in the external pump with a gap, and the thru-holes communicate.

A method of determining the volume of fluid contained in a collapsible bottle, the collapsible bottle containing a fluid to be dispensed from a fluid dispenser. The fluid dispenser has a distance measuring sensor, and the collapsible bottle is coupled to the fluid dispenser so that a preselected surface of the collapsible bottle is positioned in a measurement path of the sensor. The fluid dispenser is activated to dispense an allotment of the fluid from the collapsible bottle, the collapsible bottle collapsing in a predictable manner as the fluid is dispensed from the collapsible bottle. The sensor is used to measure a distance between the sensor and the preselected surface of the collapsible bottle, the distance changing predictably as the collapsible bottle collapses. The volume of the fluid contained in the collapsible bottle is determined based on the distance between the sensor and the preselected surface of the collapsible bottle.

Liquid dispenser having a liquid store and a discharge device fitted thereto and having a discharge opening. The discharge device has a pump device with a pump chamber variable in terms of volume and connected at an input side in a communicating manner to the liquid store and at an output side in a communicating manner to the discharge opening. The pump device conveys liquid from the liquid store to the discharge opening. The discharge device has a ventilation channel, by which an incoming air flow is enabled for pressure compensation between the liquid store and a surrounding atmosphere. The ventilation channel has a ventilation valve openable by manual actuation of the pump device and closed when the pump device is not actuated. Further, the ventilation channel has a capillary channel portion through which the incoming air flow reaches the liquid store.

A wobble plate for a sequentially activated multi-diaphragm foam pump includes three or more wings, a wobble plate shaft, and an aperture located in each of the three or more wings. A first wing is configured to have a first distance from first contact surface of a first pump diaphragm. A second wing is configured to have a second distance from a first contact surface on a second pump diaphragm, and a third wing is configured to have substantially the second distance from a first contact surface on a third pump diaphragm.

A foam discharge container is a foam discharge container for discharging foam in response to a pushing operation, and includes a discharge port which is opened in a direction opposite to a pushing direction of the pushing operation and discharges foam, and a pushing portion that keeps the distance between a discharge target body receiving foam and the discharge port constant.