Measuring and testing – Fluid pressure gauge – Diaphragm
Reexamination Certificate
2006-05-30
2006-05-30
Noori, Max (Department: 2855)
Measuring and testing
Fluid pressure gauge
Diaphragm
Reexamination Certificate
active
07051596
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.
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Mercury Medical Products & Services information for Resuscitators, Resuscitators-Manometers; information from the internet; copyright 2000M.
Mercury Manufactured Products Manometer information from the internet; copyright 2000.
Ventlab Corporation PT valve w/ pressure gauge diagram; Aug. 2001.
Ventlab Corporation Pop-Off Valve w/pressure gauge diagram; Aug. 2001.
Definition of passageway taken from Dictionary.com; undated; admitted prior art.
The Mercury CPR Bag; A single-patient-use manual resuscitator; undated, admitted prior art.
Leighton Stone Corporation, information on Magnahelic Differential Pressure Gauge from the internet; undated; admitted prior art.
Lau Gregory
Martin, Jr. Robert M.
,MacCord Mason PLLC
Allen Andre
Ventlab Corporation
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