Patents Assigned to Weh, Inc.
  • Device for enhancing moisture content of inspired air in a closed respiratory system
    Patent number: 5438978
    Abstract: A hollow, elongated shaft (20) containing a layer of porous material (30) that is capable of retaining moisture is designed to fit within the airway (13) of the mouthpiece (11) of a closed respiratory system to receive water vapor from expired air and allow the water vapor to be taken up by inspired air.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: August 8, 1995
    Assignee: Weh, Inc.
    Inventor: Walter E. Hardester, III