Patents by Inventor Trevor G. Dunstan

Trevor G. Dunstan 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: 4619531
    Abstract: This invention relates to a batching plant for particulate materials including batching of finely divided material such as cementitious (e.g. cement and flyash) and denser material such as aggregate which may include sand, screenings and gravel. The batching plant includes batching means for batching of the denser material such as one or more weighing hoppers. There also is included conveying means such as a belt conveyor for transfer of batched dense material from the batching means to a discharge location or housing. Storage means for the finely divided material is also provided such as a storage bin having a discharge outlet. There also is included a pressurized batching vessel for finely divided material discharged from the storage means which suitably is provided with means for creating a fluidized bed in the pressurized vessel.
    Type: Grant
    Filed: November 14, 1984
    Date of Patent: October 28, 1986
    Assignee: Dunstan & Partners Pty. Ltd.
    Inventor: Trevor G. Dunstan
  • Patent number: 4580902
    Abstract: A mixing plant suitable for mixing of particulate material of different densities such as road base materials with the addition of water or other liquid. The mixing plant includes a receptacle for particulate materials and a mixing station or pug mill. There is provided first conveying means suitably in the form of a conveyor belt for conveying particulate material from the receptacle to the mixing station. There is also provided a container for finely divided material which may act as a binding agent or stabilizer for the particulate material.There is also provided a second conveying means such as a conveyor belt for conveying finely divided material to the mixing station. There is also provided means for adding water or other liquid to the finely divided material and the particulate material at the mixing station.There is also provided a collection station or discharge station and means for transporting the mixed materials from the mixing station to the collection station.
    Type: Grant
    Filed: July 24, 1984
    Date of Patent: April 8, 1986
    Assignee: Dunstan & Partners Pty. Ltd
    Inventor: Trevor G. Dunstan