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US 4,928,536 AGranted
Fluid sample apparatus featuring integral construction with a motor driven sampling system
AssigneeWelker Engineering Company
InventorBrian H. Welker
Life of this patent
Estimating the term…
Abstract
A fluid motor integrally constructed on an elongate body enables periodic fluid sampling. This device affixes to a pipeline by a threaded connection which positions an inlet in the pipeline for sample removal; the sample flows to a sample bite removal valve which is motor operated to obtain periodic sample bits. Pressure step up or down is achieved in a sample pressue isolation system having a check valve function. This enables storage at any pressure.
Claims13
An assembly for obtaining a fluid sample from a pressurized pipeline comprising:
- (a) an elongate body having
- (i) a first end formed to connect to a pipeline to position a pressurized fluid inlet in the pipeline to receive pressurized fluid;
- (ii) a central body portion connected to said first end;
- and
- (iii) a second end deployed from said first end;
- (b) a fluid flow line connected from said fluid inlet to deliver a flow of fluid;
- (c) fluid sampling means connected to said fluid flow line to deliver fluid thereto in a volume in excess of said sample;
- (d) said sampling means periodically removing fluid from said fluid flow line;
- (e) outlet means connected to said sampling means for delivery of a fluid sample without regard to the pressure in the pipeline;
- (f) check valve means cooperative with said outlet means to enable fluid to flow through said outlet means to overcome back pressure encountered by fluid flow;
- (g) rigid chamber connecting means connecting said sample means and check valve means;
- and
- (h) motor means in said body for operating said sampling means to direct fluid through said outlet means.
10 more elements
Dependencies are inferred from the claim text.