Patent application number | Description | Published |
20100089951 | Dispensing tube assembly and foam generator for coaxial tubes - A dispensing tube assembly includes a first component delivery tube surrounded by a second component delivery tube. The first component delivery tube provides an axial passage, and an annular passage is defined between the first component delivery tube and the second component delivery tube. A component travelling through the axial passage is diverted to enter the surrounding annular passage and mix with a second component traveling in that annular passage. The premixture formed by this mixture of components is then diverted from the annular passage into a post mix chamber and ultimately dispensed as a foam. A foam media may be employed to homogenous the premixture and create a high quality foam. The dispensing tube assembly is advantageously employed in a dispenser wherein soap and air are advanced through coaxial tubes to be mixed and create a foamed soap product. | 04-15-2010 |
20110006086 | FOAM SOAP GENERATOR - A foam soap generator is provided for implementation with various types of foam soap delivery systems. The foam soap generator includes converging air and liquid soap passages at a mixing chamber, where a prefoam is generated for ultimate extrusion through a porous passage member. In one embodiment of the invention, the soap and air are delivered through coaxial tubes, with the soap being introduced axially into the mixing chamber and the air being introduced radially angularly. In another embodiment, the liquid soap is drawn into an entrainment zone by high velocity air passing through the air passageway and into the mixing chamber. | 01-13-2011 |
20120285992 | FOAM PUMP - Dispensing systems and refill units are disclosed herein. One exemplary refill unit includes a liquid reservoir and a rotary liquid pump having a liquid inlet in fluid communication with the liquid reservoir. The rotary liquid pump includes a housing, wherein at least a portion of the housing is resilient and a rotor that has one or more apexes. During operation, the one or more apexes contact the resilient portion of the housing and deflect the resilient portion of the housing resulting in the movement of a liquid. A mixing chamber having a liquid inlet and an air inlet is also provided. The liquid pump outlet is in fluid communication with the mixing chamber liquid inlet and the air inlet if in fluid communication with an air pump. An outlet nozzle is in fluid communication with the mixing chamber outlet for dispensing foam formed by mixing the liquid and air together. | 11-15-2012 |
20130015209 | SHUT-OFF SYSTEM FOR A DISPENSERAANM SMITH; DAVID J.AACI LafayetteAAST COAACO USAAGP SMITH; DAVID J. Lafayette CO USAANM McNulty; John J.AACI Broadview HeightsAAST OHAACO USAAGP McNulty; John J. Broadview Heights OH USAANM Quinlan; RobertAACI StowAAST OHAACO USAAGP Quinlan; Robert Stow OH USAANM Mann; Christopher J.AACI AkronAAST OHAACO USAAGP Mann; Christopher J. Akron OH USAANM Yates; James M.AACI AkronAAST OHAACO USAAGP Yates; James M. Akron OH US - A shut-off system for a dispenser includes a pinch member that moves relative to a guide and which is normally biased against a flexible outlet tube that is disposed therebetween. The flexible outlet tube that carries material, such as soap, supplied from a pump to an outlet nozzle. The pump and the pinch member are in operative engagement with an actuator, such that when the actuator is not engaged, the pinch member closes the outlet tube to prevent residual material retained in the outlet tube from flowing or drooling out of the outlet nozzle. Correspondingly, when the actuator is engaged, the pump is compressed, and the pinch member is moved away from the outlet tube, allowing the material to be pumped through the outlet tube and dispensed from the outlet nozzle. | 01-17-2013 |
20130233441 | AIR-ACTIVATED SEQUENCED VALVE SPLIT FOAM PUMP - Foam dispenser systems and pumps for use in foam dispenser systems are disclosed herein. A refill unit for refilling a foam dispenser system comprises a container for holding a supply of foamable liquid and a pump housing connected to the container. The pump housing comprises one or more connections for connecting to one or more external air pumps, wherein the air pumps supply air pressure to move the foamable liquid into a mixing chamber and to mix air with the liquid in the mixing chamber and create a foamy air-liquid mixture. | 09-12-2013 |
20130299517 | PULL-ACTIVATED FOAM PUMPS, DISPENSERS AND REFILL UNITS - Foam dispenser systems, pumps and refill units are disclosed herein. A refill unit for refilling a foam dispenser system comprises a container for holding a supply of foamable liquid and a foam pump connected to the container. The pump incorporates a simple and inexpensive valve arrangement to move liquid through the pump and to create the foam. For example, a liquid foam pump may include a housing and a valve stem that moves in two directions. The valve stem has an inlet liquid pathway and an outlet liquid pathway to convey liquid to a mixing. In addition, a moveable valve body is movable by the valve stem in a first direction to move the valve body to the first position to open a liquid inlet pathway, and moveable in a second direction to move the valve body to the second position to open the outlet liquid pathway. | 11-14-2013 |
20150053722 | AIR-ACTIVATED SEQUENCED VALVE SPLIT FOAM PUMP - Foam dispenser systems and pumps for use in foam dispenser systems are disclosed herein. A refill unit for refilling a foam dispenser system comprises a container for holding a supply of foamable liquid and a pump housing connected to the container. The pump housing comprises one or more connections for connecting to one or more external air pumps, wherein the air pumps supply air pressure to move the foamable liquid into a mixing chamber and to mix air with the liquid in the mixing chamber and create a foamy air-liquid mixture. | 02-26-2015 |
20150144659 | SHUT-OFF SYSTEM FOR A DISPENSER - A shut-off system for a dispenser includes a pinch member that moves relative to a guide and which is normally biased against a flexible outlet tube that is disposed therebetween. The flexible outlet tube that carries material, such as soap, supplied from a pump to an outlet nozzle. The pump and the pinch member are in operative engagement with an actuator, such that when the actuator is not engaged, the pinch member closes the outlet tube to prevent residual material retained in the outlet tube from flowing or drooling out of the outlet nozzle. Correspondingly, when the actuator is engaged, the pump is compressed, and the pinch member is moved away from the outlet tube, allowing the material to be pumped through the outlet tube and dispensed from the outlet nozzle. | 05-28-2015 |