Diaphragm gas meter

Details Diaphragm gas meter Diaphragm gas meter

2006-04-25

2006-04-25

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

Expansible chamber

Reexamination Certificate

active

07032447

ABSTRACT:
In a gas meter, a measuring diaphragm is provided inside a measuring chamber, the measuring diaphragm is caused to reciprocate according to a gas pressure of gas flowing from a gas inflow port to the measuring chamber, and the reciprocation of the measuring diaphragm is interlocked with a valve mechanism and an integrating mechanism via a wing shaft and a crank mechanism. Here, the measuring diaphragm is formed in an elliptical shape which is horizontally long in the width direction of the gas meter.

REFERENCES:
patent: 4796676 (1989-01-01), Hendershot et al.
patent: 5939638 (1999-08-01), Zovath et al.
patent: 6293159 (2001-09-01), Kriesel et al.
patent: 1 218 175 (1966-06-01), None
patent: 40 05 908 (1991-09-01), None
patent: 0 399 489 (1990-05-01), None
patent: 0 399 489 (1990-05-01), None
European Search Report dated Jun. 17, 2005.

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