Patents by Inventor Rui Magalhaes

Rui Magalhaes 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).

  • Needle assembly for gas-assisted injection moulding
    Patent number: 7416398
    Abstract: A fluid injection and exhaust needle for use in gas injection moulding comprising a needle with two separate flow channels; a fluid inlet channel and a fluid outlet channel; wherein gas is injected into the melt via the fluid inlet channel to form a gas cavity in the melt, and gas is simultaneously exhausted from the cavity via the fluid outlet channel.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: August 26, 2008
    Assignee: University of Warwick
    Inventors: Gordon Frederick Smith, Rui Magalhaes
  • Coating injection moulded articles
    Patent number: 7387754
    Abstract: A method of coating an article during injection molding wherein coating material carried by a high pressure carrier gas is blasted at high velocity directly onto the internal walls of a closed mold and then a plastics substrate is injected into the coated mold to form in-situ a coated molded product.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: June 17, 2008
    Assignee: University of Warwick
    Inventors: Gordon Frederick Smith, Rui Magalhaes
  • Gas injection moulding method and apparatus
    Publication number: 20050133945
    Abstract: A gas injection moulding method comprising injecting a melt into a mould and injecting gas into the melt to form a gas cavity in the melt wherein the melt is cooled by use of injection gas cooled to below the external ambient air temperature and/or by a continuous flow of injection gas through the mould.
    Type: Application
    Filed: February 10, 2005
    Publication date: June 23, 2005
    Applicant: University of Warwick
    Inventors: Rui Magalhaes, Gordon Smith
  • Needle assembly for gas-assisted injection moulding
    Publication number: 20050098929
    Abstract: A fluid injection and exhaust needle for use in gas injection moulding comprising a needle with two separate flow channels; a fluid inlet channel and a fluid outlet channel; wherein gas is injected into the melt via the fluid inlet channel to form a gas cavity in the melt, and gas is simultaneously exhausted from the cavity via the fluid outlet channel.
    Type: Application
    Filed: May 12, 2004
    Publication date: May 12, 2005
    Inventors: Gordon Smith, Rui Magalhaes
  • Coating injection moulded articles
    Publication number: 20050001360
    Abstract: A method of coating an article during injection moulding wherein coating material carried by a high pressure carrier gas is blasted at high velocity directly onto the internal walls of a closed mould and then a plastics substrate is injected into the coated mould to form in-situ a coated moulded product.
    Type: Application
    Filed: June 9, 2004
    Publication date: January 6, 2005
    Inventors: Gordon Smith, Rui Magalhaes