Unit for heating and dispensing aerosol products

Abstract

Abstract A DISPENSER UNIT FOR HEATING AND DISPENSING AN AEROSOL PRODUCT, COMPRISING AN EXTERIOR SHELL MEMBER HAVING AN OPENING IN ONE END FOR RECEIVING AN AEROSOL CONTAINER, AND A COMBINATION PRODUCT HEATER AND DISPENSER INCLUDING AN IMPROVED NOZZLE, AT THE OTHER END OF THE SHELL. THE HEATER AND DISPENSER INCLUDES A RELATIVELY MASSIVE HEAT EXCHANGER HAVING A PRODUCT INLET, A PRODUCT OUTLET, AND A CIRCUITOUS PASSAGE CONNECTING THE TWO, AND IS HEATED BY HEATING ELEMENT MEANS OF VARIABLE RESISTANCE. THE HEAT TRANSFER BETWEEN THE VARIABLE RESISTANCE HEATING MEANS AND THE EXCHANGER IS FACILITATED BY SURROUNDING THE HEATING ELEMENT WITH AN ELECTRICALLY INSULATING, HEAT CONDUCTIVE MATERIAL, PREFERABLY A FILED SILICONE GREASE, WHICH IS IN INTIMATE HEAT EXCHANGER CONTACT WITH THE EXCHANGER. THE PRODUCT DISPENSED FROM THE CONTAINER IS A FLOWABLE, FOAMABLE PRODUCT, WHICH INCLUDES A GASEOUS FOAMING AGENT THEREIN. THE CONTAINER IS PREFERABLY A TWO-COMPARTMENT CONTAINER COMPRISING AN OUTER PORTION WHICH INCLUDES A PROPELLANT HAVING A LIQUID-VAPOR EQUILIBRIUM AT AMBIENT TEMPERATURES, AND A FLEXIBLE, INNER PORTION FOR THE FORMABLE PRODUCT, SO THE PRODUCT MAY BE DISPENSED AT A CONSTANT OVERPRESSURE AND WITH A CONSTANT CONCENTRATION OF VOLATILE FOAMING AGENT THEREIN.

Inventors

• 👤 Warren J Grosjean

Bibliographic Details