Akron, OH, United States
Akron, OH, United States

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A method and device for indicating whether a dispensable product will require refilling prior to the next scheduled service interval includes tracking the amount of use over a first interval, and calculating a frequency based from the use over the first interval. The quantity remaining is compared with the required amount, which is the product of the number of weeks in the service interval and the calculated frequency. Thus, when the quantity remaining is less that the required amount, a warning will be provided to indicate that the dispensing product should be replaced, as it will be empty before the next service interval.


Patent
GOJO Industries Inc. | Date: 2016-09-30

An exemplary dispenser includes a base having at least one rail, a cover, and a mounting portion for a refill unit having a container for fluid. The cover is slideable along at least one rail of the base between a closed position and an open position.


Patent
GOJO Industries Inc. | Date: 2016-11-02

A product dispenser may be customized by incorporating a backplane having multiple different electrical contacts points and multiple different connectors for receiving one or more dispenser plug-in circuit modules, where each plug-in circuit module has mating electrical contacts and connector members. Different dispenser plug-in circuit modules may be easily installed, i.e. plugged-in, during assembly and/or during installation of the product dispenser to change the operating features of a particular dispenser.


Hand sanitizers are provided with improved aesthetics and skin-conditioning effects, such that healthcare workers and others subject to high frequency hand hygiene requirements are encouraged to comply with said requirements. The hand sanitizers provide excellent antimicrobial efficacy and skin conditioning benefits that actually increase with increased frequency of use. The sanitizing compositions are hydroalcoholic, and contain a synergistic combination of skin-conditioning agents.


Patent
GOJO Industries Inc. | Date: 2016-11-14

Foaming cartridge for use with a foam pump, refill unit or foam dispenser includes a housing and a foaming stage disposed within the housing. The foaming stage includes two or more mix media located within the foaming stage. At least two of the mix media are sponges and the sponges have different porosities.


Patent
GOJO Industries Inc. | Date: 2016-11-15

A system and method of authenticating a replaceable product reservoir for use in a product dispenser includes incorporating a data storage device into the replaceable product reservoir where the dispenser control reads data from the storage device to verify that the correct replaceable product reservoir has been installed in the product dispenser.


A sequentially activated multi-diaphragm foam pump for a foam dispenser includes a housing with a liquid pump portion and air pump portion secured to the housing. The liquid pump portion has a liquid inlet, a liquid inlet valve, a liquid pump diaphragm, a liquid outlet valve, and a liquid outlet. The air pump portion has a first and second air inlet, a first and second air inlet valve, a first and second air pump diaphragm, and a first and second air outlet. The sequentially activated multi-diaphragm foam pump also includes a mixing chamber that is in fluid communication with the liquid outlet, the first air outlet, and the second air outlet. The liquid pump diaphragm, the first air pump diaphragm, and the second air pump diaphragm operate in sequential order. The liquid pump diaphragm pumps liquid into the mixing chamber, the first air pump diaphragm pumps air into the mixing chamber to mix with the liquid to form a liquid air mixture, and the second air pump diaphragm pumps air into the mixing chamber to mix with the liquid air mixture to form a foamy mixture. The foamy mixture is dispensed through an outlet that is in fluid communication with the mixing chamber.


Refill units for foam dispensers include a container for holding foamable liquid, a foam pump secured to the container, a foaming cartridge, an outlet and an actuation mechanism. The foam pump includes a housing, a liquid pump diaphragm, a plurality of air pump diaphragms, and a mixing chamber. An actuation mechanism releasably connects to a drive system in the dispenser. The actuation mechanism sequentially activates the liquid pump diaphragm and the air pump diaphragms when the refill unit is connected to the dispenser and the drive system. Sequential activation of the liquid pump diaphragm and air pump diaphragms causes the liquid pump diaphragm to pump at least a partial dose of liquid into the mixing chamber and the air pump diaphragms to pump at least a partial dose of air into the mixing chamber.


An exemplary foam dispenser system includes a housing, a container, a motor, an air pump, a foam pump, a first mixing chamber, a second mixing chamber, a foam cartridge, and an outlet for dispensing foam. The container holds a foamable liquid. The foam pump has a liquid pump portion that pumps liquid, and an air pump portion that pumps air. The first mixing chamber is located downstream of the liquid pump portion and the air pump portion, and the liquid and the air mix in the first mixing chamber to create a first foam mixture. The second mixing chamber is located downstream of the first mixing chamber and the air pump, and the first mixture and air from the air pump mix in the second mixing chamber to create a second foam mixture. The second foam mixture travels through the foam cartridge and exits the outlet as rich foam.


Exemplary dispensers, pumps and refill units are disclosed herein. An exemplary refill unit includes a container and a foam pump. The foam pump includes a liquid pump chamber, a compressible air inlet chamber and a compressed air inlet. The volume of the compressible air inlet chamber is less than the volume of air used to make a dose of foam. A one-way air inlet valve is located proximate the compressed air inlet. A piston is included that is movable within the liquid pump chamber and has a liquid seal member and an air seal member. The liquid pump chamber includes a liquid outlet into a center portion of the piston. One or more openings extend through the piston wall and provide a passage from the compressible air chamber to the center portion of the piston. The pump further includes mix media and an outlet.

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