Patents by Inventor John R. Bandstra

John R. Bandstra has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7785059
    Abstract: A blower unit is configured to have a forward containment portion for housing mechanical equipment for receiving and dispensing material particles as ground cover. A rear containment portion is provided for containing such material particles. A material mover preferably operable in forward and rearward direction will feed material to the mechanical equipment for breakdown and pneumatic disbursement. A rear door design enables convenient unloading of the material with the live floor directionally reversed. Benefits include a more convenient means for servicing of the blower mechanism including e.g. an engine providing a motor source, dispensing hose, rotary air lock feeder and mixing chamber e.g. T injector or dropout (term as used in the industry).
    Type: Grant
    Filed: August 29, 2006
    Date of Patent: August 31, 2010
    Assignee: Astec Industries, Inc.
    Inventor: John R. Bandstra