Patents by Inventor Craig Renwick

Craig Renwick 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: 7168941
    Abstract: A seal is provided between a nozzle and a manifold. The seal provides a melt channel between an outlet of the manifold and a nozzle channel. The seal has higher thermal expansion coefficient than both the nozzle and the manifold to provide an improved seal between the manifold and the nozzle when the injection molding apparatus is at an operating temperature.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: January 30, 2007
    Assignee: Mold-Masters Limited
    Inventors: Denis Babin, Craig Renwick, Robert Sicilia, Helen Verriet
  • Patent number: 6992269
    Abstract: An injection nozzle for an injection molding apparatus is provided. The injection nozzle includes a head portion, a body portion and a heater. The head and body portions are connected to each other and together define a nozzle melt channel. The head portion has a head portion outer surface. The head portion is adapted to be in contact with a molding apparatus component that is at a lower temperature than the head portion. The body portion has a body portion outer surface. A groove is defined in the head portion outer surface and the body portion outer surface. The heater wire is positioned in the groove. The heater is adapted to heat melt in the nozzle melt channel.
    Type: Grant
    Filed: February 5, 2003
    Date of Patent: January 31, 2006
    Assignee: Mold-Masters Limited
    Inventors: Craig Renwick, Denis Babin
  • Publication number: 20050142247
    Abstract: A seal is provided between a nozzle and a manifold. The seal provides a melt channel between an outlet of the manifold and a nozzle channel. The seal has higher thermal expansion coefficient than both the nozzle and the manifold to provide an improved seal between the manifold and the nozzle when the injection molding apparatus is at an operating temperature.
    Type: Application
    Filed: February 28, 2005
    Publication date: June 30, 2005
    Applicant: Mold-Masters Limited
    Inventors: Denis Babin, Craig Renwick, Robert Sicilia, Helen Verriet
  • Patent number: 6860732
    Abstract: A seal is provided between a nozzle and a manifold. The seal provides a melt channel between an outlet of the manifold and a nozzle channel. The seal has higher thermal expansion coefficient than both the nozzle and the manifold to provide an improved seal between the manifold and the nozzle when the injection molding apparatus is at an operating temperature.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: March 1, 2005
    Assignee: Mold-Masters Limited
    Inventors: Denis Babin, Craig Renwick, Robert Sicilia, Helen Verriet
  • Publication number: 20040005380
    Abstract: A seal is provided between a nozzle and a manifold. The seal provides a melt channel between an outlet of the manifold and a nozzle channel. The seal has higher thermal expansion coefficient than both the nozzle and the manifold to provide an improved seal between the manifold and the nozzle when the injection molding apparatus is at an operating temperature.
    Type: Application
    Filed: February 4, 2003
    Publication date: January 8, 2004
    Inventors: Denis Babin, Craig Renwick, Robert Sicilia, Helen Verriet
  • Publication number: 20030164363
    Abstract: An injection nozzle for an injection molding apparatus is provided. The injection nozzle includes a head portion, a body portion and a heater. The head and body portions are connected to each other and together define a nozzle melt channel. The head portion has a head portion outer surface. The head portion is adapted to be in contact with a molding apparatus component that is at a lower temperature than the head portion. The body portion has a body portion outer surface. A groove is defined in the head portion outer surface and the body portion outer surface. The heater wire is positioned in the groove. The heater is adapted to heat melt in the nozzle melt channel.
    Type: Application
    Filed: February 5, 2003
    Publication date: September 4, 2003
    Inventors: Craig Renwick, Denis Babin