Patent ID: 9702791
Date: 2017-07-11
CPC Classifications: G01N

Claim:
1. A fluid flow sampling device, comprising: an elongate housing having a fluid inlet and a fluid outlet longitudinally separated from one another along an axis of the housing, and wherein a position of the fluid inlet and the fluid outlet relative to one another is capable of inducing fluid flow through the housing from the fluid inlet to the fluid outlet as a result of a pressure differential between the fluid inlet and the fluid outlet; a sleeve disposed in the housing having openings corresponding to the fluid inlet and the fluid outlet of the housing, the sleeve being movable relative to the housing to an open position and a closed position, wherein the open position aligns the openings of the sleeve with the fluid inlet and the fluid outlet of the housing to allow fluid to flow into the fluid inlet, through the sleeve, and out of the fluid outlet, and wherein the closed position blocks at least one of the fluid inlet and the fluid outlet with a portion of the sleeve such that fluid is prevented from flowing through the sleeve; and a coalescent filter disposed in the sleeve between the fluid inlet and the fluid outlet, wherein when the coalescent filter is in the open position, the filter allows a portion of the fluid to pass therethrough for sampling, and wherein the sleeve allows another portion of the fluid to flow past the filter and out of the fluid outlet to carry away coalescent material from the filter.