Measuring and testing – Volume or rate of flow – Expansible chamber
Patent
1977-10-19
1978-09-19
Goldstein, Herbert
Measuring and testing
Volume or rate of flow
Expansible chamber
G01F 1115
Patent
active
041144406
ABSTRACT:
This invention pertains to flow meters and in particular to a fluid flow measuring apparatus removably mountable in a pipe. This measuring apparatus includes a bladed turbine having a localized magnet member sealed in the turbine and as the polarization of this magnet is brought in way of a magnetic pickup a pulse is actuated. This electrical signal is read either as an increase in voltage or as a transducer which reads the number of pulses to determine the rate of flow. In particular, the present flow meter incorporates a probe which in addition to carrying a bladed turbine also carries the magnetic pickup in a stem. This probe is made so as to be removed from or inserted into a conduit for placement in the midstream of a large passageway to read the flow therethrough. The improvement provided in this invention is a replaceable turbine and a mount member carrying the bladed turbine. The improvement also includes a U-shaped support mount for the bladed turbine rather than a single post. In one embodiment the U-shaped support and probe mount are made of plastic, preferably of integral construction, for resistance to particular fluid compositions.
REFERENCES:
patent: 3457782 (1969-07-01), Maeder
patent: 3496770 (1970-02-01), Fassett
patent: 3531988 (1970-10-01), Casani et al.
patent: 3771363 (1973-11-01), Stapler
patent: 3880003 (1975-04-01), Jameson
Goldstein Herbert
Roberts Ralph R.
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