A particulate dispensing device includes a housing having a wall at least partially forming a housing cavity. A dispersive element and a particulate filter are each supported in the housing cavity in spaced relation to one another forming a fluidizing chamber. A dispensing tube extends from the fluidizing...http://www.google.com.au/patents/US6786579?utm_source=gb-gplus-sharePatent US6786579 - Device for dispensing particulate matter and system using the same
