Patents Assigned to The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Northern Ireland and Great Britain
  • Oxygen masks
    Patent number: 5538001
    Abstract: A pressure breathing mask, particularly an aircrew oxygen mask, includes an exoskeleton (10), a flexible facepiece (11) with an oxygen delivery connection (15), an inflatable bladder (20) positioned between the exoskeleton (10) and a rigid intermediate member (30), the intermediate member (30) bearing on the facepiece (11), and means (21, 23) for automatically inflating the bladder (20) when oxygen is delivered under pressure to the mask.
    Type: Grant
    Filed: January 26, 1995
    Date of Patent: July 23, 1996
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Northern Ireland and Great Britain
    Inventor: Peter C. Bridges