Gas meter having cam for reciprocating valve covers and related

Details Gas meter having cam for reciprocating valve covers and related Gas meter having cam for reciprocating valve covers and related

1995-05-05

1997-01-14

Chilcot, Richard

Measuring and testing

Volume or rate of flow

Element

73262, G01F 1510

Patent

active

055941672

ABSTRACT:
A gas meter includes a cam for driving first and second valve covers associated with respective diaphragms. Gas flowing into the gas meter is selectively directed by the first and second valve covers to reciprocate respective diaphragms. First and second cam rotation assemblies are coupled to respective diaphragms and continuously drive a cam to rotate the cam through a complete revolution, a feature which provides accurate metering of gas flows out of the gas meter, and a relatively steady flow of gas out of the gas meter. Further, the gas meter of this invention requires relatively few parts and so is relatively reliable and easy to manufacture.

REFERENCES:
patent: 1223875 (1917-04-01), Heeley
patent: 3369398 (1968-02-01), Porter et al.
patent: 3589189 (1971-06-01), Douglas
patent: 4008425 (1977-03-01), Dickey
patent: 5415032 (1995-05-01), Swain et al.

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