Patents by Inventor John Stewart MacMillan

John Stewart MacMillan 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: 7181985
    Abstract: There is disclosed a conduit inspection apparatus of a type adapted to be located within and transported along a conduit such as a duct, and a method of inspecting a conduit. In one embodiment, the conduit inspection apparatus (10) comprises a body (18) adapted for location within a conduit such as a duct (14), a centralization assembly (16) for centralizing the body (18) within the duct (14), a transportation assembly (20) for transporting the body (18) along the duct (14), and a data coupling (24) for data communication between the body (18) and a control station (22). In a preferred embodiment, the apparatus (10) includes a fluid applicator (78a) for supplying a fluid to a surface of the duct (14), the fluid applicator (78a) including a rotary member in the form of an atomiser (166) for imparting a force on the fluid to direct the fluid towards a surface of the duct (14).
    Type: Grant
    Filed: May 27, 2005
    Date of Patent: February 27, 2007
    Assignee: Breval Technical Services Limited
    Inventors: John Stewart MacMillan, Patrick Gerard McBride, John Gibb MacMillan, Colin Main, David Kennedy, Kenneth Cameron