Measuring and testing – Volume or rate of flow – Thermal type
Patent
1974-07-03
1976-06-15
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Thermal type
128 208, G01F 168, A61B 508
Patent
active
039629171
ABSTRACT:
A respirometer for measuring the rate of an air flow of respiration includes a hot wire in a path of the air flow. For measuring the rate of the air flow with a discrimination made between the senses of the air flow, a pair of temperature sensitive elements are placed in the path of the air flow on respective opposite sides of the hot wire relative to the air flow.
REFERENCES:
patent: 2728225 (1955-12-01), Skibitzke
patent: 3060723 (1962-10-01), Kapff et al.
patent: 3075515 (1963-01-01), Richards
patent: 3081766 (1963-03-01), Dubsky et al.
patent: 3592055 (1971-07-01), Dorman
patent: 3648518 (1972-03-01), Hans et al.
patent: 3680378 (1972-08-01), Aurilio et al.
patent: 3687130 (1972-08-01), McCormick
Goldstein Herbert
Minato Medical Science Co., Ltd.
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