Abstract: A disposable, hermetically sealed dispensing container for pulverulent material is described. The dispensing container has a domed flexible body portion opposite a base portion to which an axial flow pipe is attached. A thin plug seals an opening in the axial flow pipe and is punctured at the time of use.

Abstract: A powder dispenser suitable for use as a first extinguisher and for dispensing particulated solids comprising a container having flexible side walls and formed with an annular neck portion on which a dispensing head is mounted having an orifice terminating in a discharge nozzle. A first conduit is connected at its upper end to the orifice of the dipensing head and extends downwardly within the container such that the lower inlet end thereof is disposed at a position spaced from the base of the container.

Abstract: A device for use in a powder entraining squeeze container employs a first vertical hollow circular conduit having a first diameter, open at top and bottom ends and constituting a dip tube. A hollow spherical chamber having a second and much larger diameter and constituting an air powder mixing chamber is disposed above the dip tube, the top end of the dip tube being connected to the bottom of the chamber. A second vertical hollow conduit having a third diameter smaller than the first diameter is secured at its open bottom end to the top of the chamber and is used to discharge the mixture from its top open end. A third vertical hollow conduit in the chamber wall is open at top and bottom ends and is disposed alongside of a portion of the first conduit. The diameter of the third conduit is substantially equal to the third diameter. The open top of a vertical hollow cup closed at its bottom is spaced below the chamber.

Abstract: A disposable squeezable dispenser employing a flexible container filled with a mixture of air and the liquid to be dispensed. The dispenser employes only two main parts (other than the container itself) plus a ball and dip tube. One of the main parts is a hollow pull top which cooperates with the other main part in a sealing operation which prevents leakage when the dispenser is not in use.