Gas sampling pump

Details Gas sampling pump Gas sampling pump

1984-10-15

1985-07-30

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

417570, F04B 3910

Patent

active

045318956

ABSTRACT:
A gas sampling pump utilizes a body with a cylindrical bore and a cylindrical plunger. A disc valve at the bottom has about the same diameter as the bore, and therefore, when it is seated upon "O" ring which forms a valve seat at the inlet of the bore and when the plunger is seated against the disc, the bore is substantially filled with the plunger and disc valve. The outlet valve is an annular valve. The outlet is connected to a sampling flask. Therefore, if the plunger is reciprocated, that from the top position, there will be a certain volume within the pump which is completely displaced at the bottom of the plunger stroke resulting in an extremely high volumetric efficiency. A balance ring biases the outlet valve to prohibit a free flow of gas when the sampling flask has less pressure than the gas inlet pressure.

REFERENCES:
patent: 2122020 (1938-06-01), Barks
patent: 3312178 (1967-04-01), Rotter et al.
patent: 3995966 (1976-12-01), Blancha
patent: 4137017 (1979-01-01), Lonardo
patent: 4452573 (1984-06-01), Samuel
patent: 4470775 (1984-09-01), Lonardo

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