Patents Assigned to Ventlab Corporation
  • Manual resuscitators with integral manometer
    Patent number: 7357033
    Abstract: A manometer integrated into a manual resuscitator includes a housing with a communication path, and a pressure gauge integrally forming part of the housing. A sensing chamber and an atmospheric chamber are separated by a diaphragm subject to distortion by differential pressure between the chambers, with a spring to restore the diaphragm upon equalization of the pressures. A shaft journaled in a first bearing on the diaphragm and a second bearing in one of the chambers rotates in the bearings upon diaphragm distortion, and an indicator on the shaft indicates differences in pressure between the chambers.
    Type: Grant
    Filed: January 23, 2006
    Date of Patent: April 15, 2008
    Assignee: Ventlab Corporation
    Inventors: Gregory Lau, Robert M. Martin, Jr.
  • Manual resuscitators with integral manometer
    Patent number: 7051596
    Abstract: A manometer integrated into a manual resuscitator includes a housing with a communication path, and a pressure gauge integrally forming part of the housing. A sensing chamber and an atmospheric chamber are separated by a diaphragm subject to distortion by differential pressure between the chambers, with a spring to restore the diaphragm upon equalization of the pressures. A shaft journaled in a first bearing on the diaphragm and a second bearing in one of the chambers rotates in the bearings upon diaphragm distortion, and an indicator on the shaft indicates differences in pressure between the chambers.
    Type: Grant
    Filed: October 3, 2003
    Date of Patent: May 30, 2006
    Assignee: Ventlab Corporation
    Inventors: Gregory Lau, Robert M. Martin, Jr.