Abstract: A foam pump includes a fluid cylinder, an air cylinder, and a mixing chamber, in which the fluid cylinder is adapted to draw a fluid therein in a priming stroke, and to pump the fluid into the mixing chamber in a dispensing stroke, in which the air cylinder is adapted to draw air therein in a priming stroke, and to pump the air into the mixing chamber in a dispensing stroke, in which the mixing chamber includes a fluid throughflow axis, in which the fluid cylinder and the air cylinder are co-axial with one another and are aligned on a second axis which is substantially normal to the fluid throughflow axis, in which the fluid cylinder and the air cylinder are provided with a common piston member, and in which the foam pump includes spring means adapted to bias the common piston member to perform a priming stroke of the fluid cylinder and the air cylinder.

Abstract: A foam pump includes a fluid cylinder, an air cylinder, and a mixing chamber, in which the fluid cylinder is adapted to draw a fluid therein in a priming stroke, and to pump the fluid into the mixing chamber in a dispensing stroke, in which the air cylinder is adapted to draw air therein in a priming stroke, and to pump the air into the mixing chamber in a dispensing stroke, in which the mixing chamber includes a fluid throughflow axis, in which the fluid cylinder and the air cylinder are co-axial with one another and are aligned on a second axis which is substantially normal to the fluid throughflow axis, in which the fluid cylinder and the air cylinder are provided with a common piston member, and in which the foam pump includes spring means adapted to bias the common piston member to perform a priming stroke of the fluid cylinder and the air cylinder.

Abstract: A dispensing device comprising an enclosure and a pump, in which the enclosure comprises a base and a cover, in which the cover is attached to the base with a hinge and is rotatable about said hinge towards and away from said base, in which the pump comprises an operating plunger, in which the cover is connected to said plunger by a pivoting linkage adapted to convert the rotational movement of the cover into a linear movement of the operating plunger.

Abstract: A dispensing device comprising an enclosure and a pump, in which the enclosure comprises a base and a cover, in which the cover is attached to the base with a hinge and is rotatable about said hinge towards and away from said base, in which the pump comprises an operating plunger, in which the cover is connected to said plunger by a pivoting linkage adapted to convert the rotational movement of the cover into a linear movement of the operating plunger.

Abstract: A dispensing device comprising a base, a cover and a valve, in which the cover is releasably attached to the base by means of first hinge means, the movement of the cove defined by first hinge means operating the valve, and in which the cover is attached to the base by means of second hinge means, the movement of the cover defined by second hinge means exposing the base for loading or unloading a container of material to be dispensed, said movement defined by second hinge means only being possible when the cover is detached from the first hinge manes.

Abstract: A pump comprising pressure means in communication with a valve chamber provided with a first valve seat and a second valve seat, and a resilient valve element comprising a first tapered portion, a second tapered portion and a flange portion extending from a periphery of the first tapered portion, in which the flange portion co-operates with the first valve seat to form an inlet valve, and the second tapered portion co-operates with the second valve seat to form an outlet valve, and in which negative pressure applied to the flange portion by the pressure means in use lifts it from the first valve seat, and positive pressure applied to the first tapered portion by the pressure means in use lifts the second tapered portion from the second valve seat.

Abstract: A dispensing device comprising a base, a cover and a valve, in which the cover is releasably attached to the base by means of first hinge means, the movement of the cove defined by first hinge means operating the valve, and in which the cover is attached to the base by means of second hinge means, the movement of the cover defined by second hinge means exposing the base for loading or unloading a container of material to be dispensed, said movement defined by second hinge means only being possible when the cover is detached from the first hinge manes.

Abstract: A dispensing device comprising a base, a cover and a valve, in which the cover is releasably attached to the base by means of first hinge means, the movement of the cove defined by first hinge means operating the valve, and in which the cover is attached to the base by means of second hinge means, the movement of the cover defined by second hinge means exposing the base for loading or unloading a container of material to be dispensed, said movement defined by second hinge means only being possible when the cover is detached from the first hinge manes.