Patents by Inventor Robert Truong Pham

Robert Truong Pham 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: 6785113
    Abstract: A manually switchable corona electrode array and method of operation for use in a corona treater station. The preferred embodiment of the present invention contemplates an electrode array which incorporates in its structure a low pressure conduit system for providing a low pressure field in the vicinity of the corona field, in order to remove ozone and other contaminants generated by the corona field. The electrode array further includes means to quickly and easily urge the array from a first position, wherein the array is situated adjacent to the treatment area, to a second position, removed from the treatment area, so as to facilitate maintenance and spooling of the material to the treated therethrough. The present invention provides a more compact footprint than traditional systems, as well as providing an ozone removal system requiring a cheaper, less powerful exhaust blower for providing the low pressure differential to remove the pollutants, including ozone, from the treatment area.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: August 31, 2004
    Inventor: Robert Truong Pham
  • Publication number: 20030015280
    Abstract: A Field-Replaceable Composite Roll system (FRCR) consists of a complex composite cover and a unique mechanical mounting system, configured to allow the retrofit of existing silicone sleeved rolls, as well as manufacture new rolls, at substantially lower costs. The system of the present invention can be used for retrofitting existing dead-shaft or live-shaft rolls previously manufactured to use silicone sleeves, as well as fabricating new rolls in conjunction with the patented WINERTIA® brand tubing or conventional thin-walled tubing. The exemplary embodiment of the composite cover is fabricated of a filament wound tube bound together via a resin or the like having dielectric properties, the tube forming inner and outer walls, the inner wall coated with a conductive layer for receiving and conducting an electric current, the outer wall coated with a wear resistant layer (illustrated as ceramic coating), followed by a sealant layer.
    Type: Application
    Filed: May 21, 2002
    Publication date: January 23, 2003
    Inventor: Robert Truong Pham