Patents by Inventor Struan Glen Robertson

Struan Glen Robertson 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: 8323369
    Abstract: Apparatus for treating materials, the apparatus including a main body which includes an elongated retort section having a primary treatment chamber therein, a feed inlet at an upstream end of the retort section and a discharge outlet at a downstream end of the retort section. The main body further includes a filtering section with a filtering chamber therein which is in communication with the primary treatment chamber, the filtering chamber being disposed laterally with respect to a longitudinal axis of the retort section which extends between the ends of the retort section and is spaced from the upstream end.
    Type: Grant
    Filed: November 29, 2006
    Date of Patent: December 4, 2012
    Inventor: Struan Glen Robertson
  • Publication number: 20100032279
    Abstract: Apparatus for treating materials, the apparatus including a main body which includes an elongated retort section having a primary treatment chamber therein, a feed inlet at an upstream end of the retort section and a discharge outlet at a downstream end of the retort section. The main body further includes a filtering section with a filtering chamber therein which is in communication with the primary treatment chamber, the filtering chamber being disposed laterally with respect to a longitudinal axis of the retort section which extends between the ends of the retort section and is spaced from the upstream end.
    Type: Application
    Filed: November 29, 2006
    Publication date: February 11, 2010
    Inventor: Struan Glen Robertson
  • Patent number: 6341567
    Abstract: Apparatus for the treatment of volatile material(s) in contaminated material(s) including a retort assembly which includes a rotatable retort disposed at least partially within a combustion chamber with a heater to indirectly heat the contents of the rotatable retort. A feeder feeds the contaminated material(s) to the retort. The apparatus further includes a pathway for passing contaminated material(s) to the retort and a conduit for passing the combustion gases from an afterburner to the retort assembly to provide additional heat for heating the contaminated material in the retort. The apparatus may also include a high temperature filter which can filter the volatiles before entering the afterburner.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: January 29, 2002
    Assignees: Tox Free Systems, Inc., Tox Free Systems Limited
    Inventors: Struan Glen Robertson, Edward Elliot Finsten
  • Patent number: 6213030
    Abstract: Apparatus for the treatment of volatile material(s) in contaminated material(s) including a retort assembly which includes a rotatable retort disposed at least partially within a combustion chamber with a heater to indirectly heat the contents of the rotatable retort. A feeder feeds the contaminated material(s) to the retort. The apparatus further includes a pathway for passing contaminated material(s) to the retort and a conduit for passing the combustion gases from an afterburner to the retort assembly to provide additional heat for heating the contaminated material in the retort. The apparatus may also include a high temperature filter which can filter the volatiles before entering the afterburner.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: April 10, 2001
    Assignee: Tox Free Systems
    Inventors: Struan Glen Robertson, Edward Elliott Finsten
  • Patent number: 5655465
    Abstract: Toxic wastes and other contaminants are removed from soil which is fed through a passage in an agitating means into a retort (10, 110) where the soil is agitated and brought into contact with the retort walls (11, 111, 111A) (at a temperature preferably above 500.degree. C.) to cause the toxic wastes or contaminates to be desorbed. The "off-gases" from the soil may be mixed with air/fuel in a combustion chamber (31, 131), to heat the retort; may be burnt in a secondary burner (40) to preheat and/or dry the soil feed; or be condensed in a condenser (41) and stored.
    Type: Grant
    Filed: July 27, 1995
    Date of Patent: August 12, 1997
    Assignees: Tox Free Systems, Inc., Tox Free Limited
    Inventor: Struan Glen Robertson