Patents by Inventor Craig Douglas McNaughton

Craig Douglas McNaughton 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).

  • Dust filter
    Patent number: 6716266
    Abstract: A dust filter for a ducted air delivery system has a frame, a filter, an extension of rubbery thermoplastic material, and an integral lip. The frame defines an open mouth and a body portion formed of rubbery thermoplastics material reinforced with one or more stiffening elements. The filter material extends from sides of the frame to cover the open mouth. The intermediate extension of rubbery thermoplastic material extends outwardly from a joint with the body portion. The integral lip of flexible resilient material is joined to the intermediate extension. The lip of flexible resilient material is shaped to make a friction fit within the outlet of a duct to hold the dust filter therein.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: April 6, 2004
    Inventor: Craig Douglas McNaughton
  • Dust filter
    Publication number: 20020026776
    Abstract: A dust filter for a ducted air delivery system comprising,
    Type: Application
    Filed: September 7, 2001
    Publication date: March 7, 2002
    Applicant: Russell Dean Potts
    Inventor: Craig Douglas McNaughton