Detector for a meter prover

Details Detector for a meter prover Detector for a meter prover

1982-11-08

1984-11-13

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

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

335153, 335205, 200 6141, G01F 2500, H01H 316

Patent

active

044818068

ABSTRACT:
A prover detector comprising a barrel having a longitudinal bore formed therethrough to receive a proximity switch mounted in one end thereof and a piston mounted in the other end thereof to extend from the barrel bore into the prover. The proximity switch is of the type that is responsive to the proximity of an unmagnetized, ferromagnetic mass near the end thereof disposed within the barrel bore for closing a set of contacts in the proximity switch and the piston has a cylindrically symmetric portion at the end thereof nearest the proximity switch, such portion centered on an axis of movement of the piston relative to the proximity switch defined by the barrel bore, so that the position of the piston for which the contacts in the proximity switch close depends only upon the distance between the proximity switch and the piston.

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