Abstract: The present application discloses liquid dispensers, refill units for liquid dispensers, liquid pumps, lost motion devices, and methods for installing a refill unit and lost motion device. In certain embodiments, a liquid dispenser of the present application comprises a container for holding a liquid, a pump housing connected to the container, a liquid or air chamber, and a piston movable in the liquid or air chamber. A connector is linked to the piston. The connector has a flexible portion for connecting to the piston and an attachment portion for attaching to an actuator of the dispenser. A restrictor is positioned between the flexible portion of the connector and the piston. Movement of the connector a first distance in a first direction results in lost motion between the actuator and the piston and continued movement of the connector a second distance in the first direction moves the piston with the actuator.

Abstract: The present application discloses liquid dispensers, refill units for liquid dispensers, liquid pumps, lost motion devices, and methods for installing a refill unit and lost motion device. In certain embodiments, a liquid dispenser of the present application comprises a container for holding a liquid, a pump housing connected to the container, a liquid or air chamber, and a piston movable in the liquid or air chamber. A connector is linked to the piston. The connector has a flexible portion for connecting to the piston and an attachment portion for attaching to an actuator of the dispenser. A restrictor is positioned between the flexible portion of the connector and the piston. Movement of the connector a first distance in a first direction results in lost motion between the actuator and the piston and continued movement of the connector a second distance in the first direction moves the piston with the actuator.

Abstract: A universal collar key used in connection with a container that fits within the housing of a dispenser that has a keyed receiver, the universal collar key including a collar supported on the container, a first flange and a second flange extending radially outward from the collar and spaced axially to define a clearance for receipt of the receiver therebetween.

Abstract: A counter mounted dispensing system includes a bottle support under a counter and a product container having a collar key. The product container is received by the bottle support and held thereby without the need for relative rotational movement between the product container and the bottle support. The product container thus may have a cross-sectional shape that prohibits the product container from being rotated at the location of receipt, typically due to contact between the container and a wall or the sink basin. An alignment skirt on the bottle support ensures that the product container is properly oriented for receipt, and a release ring in the bottle support engages the collar key on the product container to releasably hold the product container.

Abstract: A dispensing system is disclosed which utilizes an electronically powered key device and/or identification code associated with a refill container to preclude the need for mechanical keys. The system utilizes a near field frequency response to determine whether a refill container is compatible with a dispensing system. In particular, the refill container is provided with a coil terminated by one of a number of capacitors. The container is received in a housing that provides a pair of coils that are in a spatial relationship with the installed refill container's coil. By energizing one of the housing's coils, the other coil detects a unique electronic signature generated by the container's coil. If the signature is acceptable, the dispensing system is allowed to dispense a quantity of material. The system also provides a unique latching mechanism to retain the container and ensure positioning of all the coils.

Abstract: A piston stroke limiter provided in association with a positive displacement pump bottle has a piston restriction clip that may be selectively secured to the piston of the positive displacement pump. The height of the clip limits the stroke of the pump so that less fluid is dispensed from the positive displacement pump bottle than would be dispensed if the clip were removed. A protective overcap is provided in preferred embodiments to protect portions of the positive displacement pump during shipping.

Abstract: A universal collar key used in connection with a container that fits within the housing of a dispenser that has a keyed receiver, the universal collar key including a collar supported on the container, a first flange and a second flange extending radially outward from the collar and spaced axially to define a clearance for receipt of the receiver therebetween.

Abstract: A universal adapter clip used in connection with a container that is received within a soap dispenser having a key-plate, the clip including a hollow body attachable to the container, a flange extending radially outward of the body, and a tab extending rearwardly from the body and axially spaced from the flange to receive the key-plate therebetween upon insertion of the container within the dispenser.

Abstract: A universal collar that attaches to a pump and, in turn, a container used in a dispenser having a keyplate, the universal collar including: a first flange and a second flange, wherein the flanges extend radially outward and are axially spaced from each other for receiving the keyplate therebetween.

Abstract: A nasal mask assembly for preferred use in CPAP treatment. The mask assembly comprises a central body, a face cushion, a forehead support and a gas inlet. The gas inlet is rotatably connected to the central body, and the forehead support is pivotally connected to the central body. A method of using such a mask is also provided.