Patents by Inventor Jan Anthony Lewis

Jan Anthony Lewis 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: 8601624
    Abstract: This invention relates to mattresses such as a pressure relieving mattress and in particular ones for profiling beds. The mattress comprises a base portion 11, a carriage portion 12, an upper portion 13 and an inflatable pressure relieving underlay 14 disposed between the carriage 12 and the upper portion 13. The facing surfaces 15 and 16 of the base portion 11 and the carriage portion 12, respectively, are coated with a low friction material so that the two slide easily relative to one another. This sliding movement is restricted to longitudinal relative movement by the engagement of co-operating formations 17, 18. The combination provides particularly flexible mattress arrangement which also avoids the problem of the leg section of the mattress kicking upwardly when a profiling bed is articulated.
    Type: Grant
    Filed: April 13, 2006
    Date of Patent: December 10, 2013
    Inventors: Jan Anthony Lewis, Ian Robert Mahoney
  • Patent number: 7555796
    Abstract: This invention relates to mattresses, such as a pressure relieving mattress, comprising a base portion and an upper portion overlying the base portion and having an interface between the portions which has a coefficient of friction low enough such that the portions can slide relative to each other. This configuration enables relative movement of the portions, when the mattress is lying on a profiling bed and the bed is being profiled.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: July 7, 2009
    Inventors: Jan Anthony Lewis, Ian Robert Mahoney, Leyton Mark Stevens
  • Publication number: 20090144911
    Abstract: This invention relates to mattresses such as a pressure relieving mattress and in particular ones for profiling beds. The mattress comprises a base portion 11, a carriage portion 12, an upper portion 13 and an inflatable pressure relieving underlay 14 disposed between the carriage 12 and the upper portion 13. The facing surfaces 15 and 16 of the base portion 11 and the carriage portion 12, respectively, are coated with a low friction material so that the two slide easily relative to one another. This sliding movement is restricted to longitudinal relative movement by the engagement of co-operating formations 17, 18. The combination provides particularly flexible mattress arrangement which also avoids the problem of the leg section of the mattress kicking upwardly when a profiling bed is articulated.
    Type: Application
    Filed: April 13, 2006
    Publication date: June 11, 2009
    Applicant: INVACARE UK OPERATIONS LIMITED
    Inventors: Jan Anthony Lewis, Ian Robert Mahoney