Unidirectional meter prover sphere interchange and method

Details Unidirectional meter prover sphere interchange and method Unidirectional meter prover sphere interchange and method

1974-09-16

1976-03-16

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01F 2500

Patent

active

039437493

ABSTRACT:
A unidirectional meter proving device in which the interchange for transferring a sphere from a receiving tee at the downstream end of the prover loop to a launch tee at the inlet end of the loop includes a reciprocating tubular sphere carrier which moves to a sphere launching position and returns to a sphere catching position before the sphere reaches the calibrated section of the prover loop. A restriction in the launch tee controls the rate of launch of the sphere. The tubular carrier is slidably mounted in a cylindrical sleeve between the inlet and outlet openings of the interchange. A unitary seal carried on an annular flange of the carrier engages a valve seat at one end of the cylindrical sleeve when the carrier is in its sphere catching position. The annular seal is compressed into an annular groove in a valve seat, and the increased pressure in the groove is monitored as a check on the integrity of the seal.

REFERENCES:
patent: 3605790 (1971-09-01), Hunter
patent: 3738153 (1973-06-01), Simmons
patent: 3848621 (1974-11-01), Dickenson

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