Abstract: A soap dispenser, preferably a sink side counter mounted dispenser, to dispense foamed liquid soap by mixing in an outlet of a soap spout liquid, soap and air preferably provided from a liquid soap pump and a air pump located remote from the faucet.

Abstract: A piston pump for dispensing foam by simultaneously dispensing air and liquid through a foam generator and in which air to be dispensed is drawn into a chamber from which it is to be dispensed, at least in part, through an air inlet passageway which is different than a flow path out which foam is dispensed. A lost link valve arrangement provides for relative motion to open the air inlet passageway when air is drawn into the chamber and to close the air inlet passageway when air is forced out of the chamber to a dispensing outlet. Preferably, the lost link valve arrangement is provided by a piston carrying an actuator member coaxially slidable thereon to selectively open and close the air inlet passageway.

Abstract: A plastic squeeze container for dispensing a fluid carrying a turret member rotatably mounted to the container for movement to a plurality of different rotational positions with the turret member carrying an outlet through which fluid may be dispensed generally along an outlet axis and with rotation of the turret member the outlet axis varying as to the angles it assumes relative to a vertical axis of the container.

Abstract: A pump assembly with a first pump to displace a first volume and a second pump to displace a second volume greater than the first volume. The first pump draws liquid from a reservoir and dispenses it to the second pump. The second pump draws in the discharge from the first pump and an additional volume of air such that the second pump discharges both liquid and air. The first pump preferably has a piston movable in a first inner chamber and the second pump has the same piston movable in a second outer chamber. The first and second chambers communicate together. In one version, a one-way valve provides flow outwardly only from the first chamber to the second chamber and the first pump discharges while the second pump draws in, and vice versa.

Abstract: A dispenser unit adapted for single use and preferably secured to a wall with a reusable wall plate. The dispensing unit is preferably an assembled unit which, as a unit, is mountable to and removable from the mounting plate, preferably with the assembled dispensing unit being separately functional and the mounting plate is preferably required merely for mounting of the dispensing unit to the wall.

Abstract: A piston pump dispenser having a reciprocating piston pump arrangement which, in a dispensing stroke, dispenses fluid from an outlet and, in a charging stroke, to draw fluid from a reservoir also draws back fluid from the outlet through which fluid is dispensed in the dispensing stroke.

Abstract: A product dispenser incorporating radiation sensor preferably for ultra violet radiation and preferably with an alarm or notification mechanism which provides indications of ultra violet radiation levels and which may activate the alarm and notification mechanism and/or the product dispenser having regard to ultra violet radiation levels sensed.

Abstract: A delay mechanism including one or more suction cups which during a normal cycle of dispensing from a liquid dispenser come to engage on a surface and thereby delay the return of an actuating member in the dispenser to a position for further dispensing until such time as the suction cup disengages from the surface.

Abstract: An object of the invention is to provide a dispenser which permits its cover to be either locked when closed or unlocked a dispensing device including a lock mechanism for locking a cover to a housing and providing therewith a blocking member which is either coupled to the housing in an inoperative position or can be coupled to the housing in a position which prevents locking of the lock mechanism. The blocking member may preferably be integrally formed from plastic as the same material as another component of the dispenser, preferably from injection molded integrally with a back plate for the housing, at a location which is not visible when the dispenser is used and with the blocking member being removably connected to the housing back plate by a frangible connection which may readily be broken to separate the blocking member from the housing back plate such that the blocking member may be suitably positioned and coupled to the dispenser in a position which prevents locking of the lock mechanism.

Abstract: A replaceable fluid container carrying a spray pump with a nozzle which directs spray directionally in which an arrangement is provided for orientating the nozzle into a desired orientation on insertion of the container into a dispenser.

Abstract: A piston velocity detector to determine the velocity of a magnet carrying piston in a cylinder, preferably in the form of a self-contained, hand-held, battery powered piston velocity detector including a plurality of magnet field sensors disposed in an array fixedly spaced from each other within the detector.

Abstract: Liquid soap dispensers including a vacuum relief valve which comprises an enclosed chamber having an air inlet open to the atmosphere and a liquid inlet in communication with liquid in the reservoir and in which the liquid inlet opens to the chamber at a height below a height at which the air inlet opens to the chamber. The vacuum relief valve permits relief of vacuum from the reservoir without moving parts or valves. A chamber about an opening of an inverted container with an impeller within the chamber which, on rotation, dispenses fluid from the chamber.

Abstract: A method of and apparatus for dispensing paste from a collapsible container elongate about an axis from a first closed end to a second open end, the method comprising rotating one of the first end and second end relative to the other to twist the container about the axis, thereby collapsing the container, compressing paste contained therein and extruding the paste from the second open end.