Patents by Inventor David Ian Middleton

David Ian Middleton 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).

  • Breathing apparatus
    Patent number: 6405728
    Abstract: A breathing apparatus comprises at least one spherical container (15) for breathable gas attached to a harness (1,9,20,21) (5) (109) for securing the same to a user. Each container may be located within a protective casing (14,14′) and is preferably formed of composite material.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: June 18, 2002
    Assignee: Draeger Limited
    Inventors: Maurice Van Hall, David Ian Middleton, Henri Schwegman, James Leslie McMillan, Ian Barrett
  • Harnesses
    Patent number: 5954250
    Abstract: A harness to enable the wearer to carry an article such as breathing apparatus comprises a waist belt (9) carrying a waist plate (1) to which a back plate (21) is secured. The harness includes shoulder straps (20) and a coupling (41,50) for securing the article to it. The back plate (21) is moveable with respect to the waist plate (1) to facilitate movement of the wearer's body.
    Type: Grant
    Filed: July 20, 1998
    Date of Patent: September 21, 1999
    Assignee: Draeger Limited
    Inventors: Maurice Van Hall, David Ian Middleton, Henri Schwegman, James Leslie McMillan, Ian Barrett