G - Physics – 01 – P
Patent
G - Physics
01
P
73/125
G01P 5/14 (2006.01) A61B 5/087 (2006.01) G01F 1/36 (2006.01)
Patent
CA 1139965
Abstract A pneumotachograph including a housing having first and second ports which, during the course of respiration, alternate as input and output ports and which provide a path for generally linear flow of the respiratory bases. A pair of pitot tubes are di posed along the top of said path and are positioned generally at right angles thereto. A pair of baffles or flow deflectors are disposed in the path in alignment with the axes of the pitot tubes. Each of the baffles is positioned at an angle of approximately 45° to the axis of its associated pitot tube and to the path of flow. The baffles serve to reflect the respiratory gases upwardly toward the pitot tubes but since the pitot tubes are arranged above the baffles gravity prevent. the heavier mucus, water and nongaseous materials from entering the pitot tubes. Rather, these heavier particles run up to and over the top of the baffle. The baffles may be held in the flow path by a rigid connection or alternatively, they may be retained there by a resilient connection such that the pitot tube measurement is linearized. In another embodiment, the baffles may actually be merged into a single baffle thus leaving an annular opening between itself and the housing with the opening of the gap being approximately the same distance as the distance between the pair of tubes. here the mode of operation is a pressure build-up upstream in proximity to the one tube and then a venturi effect downstream for lower pressure in proximity to the other tube.
352971
Research Development Corporation
Smart & Biggar
LandOfFree
Pneumotachograph with pitot-like tubes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pneumotachograph with pitot-like tubes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pneumotachograph with pitot-like tubes will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1136928