Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1991-12-12
1993-03-09
Raevis, Robert
Measuring and testing
Sampler, sample handling, etc.
Capture device
7386435, G01N 114
Patent
active
051918013
ABSTRACT:
A sampling pump is provided suitable for pumping a discrete quantity of either a liquid or a gas per pump stroke from a flow line to a sample vessel. An operator unit drives a piston within the pump bore, and controls the stroke of the piston and thus the quantity of fluid pumped per stroke. A balanced check valve mechanism controls flow from the pump bore to the pump outlet port, and is provided within and carried by the piston. Line pressure acts on the operator end of the piston to assist the operator in driving the piston during its power stroke. A manifold may be secured to the pump body, and has a flow path therein which is in communication with the inlet port to the pump bore. The pump may also be used for injection purposes to introduce a selected quantity of fluid to a high pressure line.
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Welker Advertisement entitled "WelkerStar Solar Powered Gas Sampler". 3-page brochure discusses a gas sampler. Welker Engineering Company.
Allen Paul V.
Nimberger Spencer M.
Ward Robert L.
Precision General Inc.
Raevis Robert
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