Patents by Inventor John D. Sweazy

John D. Sweazy 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).

  • Domed air cap
    Patent number: 6019293
    Abstract: The invention is concentrated at the front end of such an air spray or HVLP gun and in particular details the relationship between the exterior of the fluid nozzle and the inside of the air cap. In particular, the fluid nozzle has a generally frustoconical outer surface which forms an included angle of about 50.degree.. The inside of the air passage at its rearward end has an included angle of about 20.degree. and then curves gently to the point where it is adjacent to the front of the air cap to form a domed inner surface.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: February 1, 2000
    Assignee: Graco Inc
    Inventors: John D. Sweazy, Ken C. Floer