Four chamber direct drive gas meter

Details Four chamber direct drive gas meter Four chamber direct drive gas meter

G - Physics

01

F

73/152

G01F 3/22 (2006.01)

Patent

CA 1188544

ABSTRACT This invention relates to gas meters and, in particular, four chamber gas meters in which the diaphragms are directly connected to the tangent by means of which the valve or valves which control the flow of gas from the inlet into the chambers and from the chambers to the outlet, are operated. The gas meter is comprised of two spaced diaphragm compartments each containing a diaphragm which divides its respective compartment into inner and outer discrete measuring chambers. A control chamber is pressure sealed with respect to the measuring chambers and the exterior of the meter. Discrete passage apparatus extends between each of the measuring chambers and the control chamber. Inlet passage apparatus extends between the control chamber and the inlet to the meter. Outlet passage apparatus extends between the control chamber and the outlet of the meter. Valve apparatus is located within the control chamber, rotatable shaft apparatus for a first portion enclosed within the control chamber and is drive connected with the valve apparatus and has a second portion which extends exteriorly of the control chamber. Crank apparatus is drive connected with the second portion of the shaft apparatus. Connecting apparatus connects the diaphragms to the crank apparatus whereby upon concomitant reciprocating movement of the diaphragms the valve apparatus will be driven to connect each of the discrete passages sequentially with the inlet passage apparatus and the outlet passage apparatus.

413135

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