Pump apparatus for fluid sampling and collection, and the like

Details Pump apparatus for fluid sampling and collection, and the like Pump apparatus for fluid sampling and collection, and the like

1991-02-22

1992-09-15

Smith, Leonard E.

Pumps

Motor driven

Fluid motor

417478, F04B 4708

Patent

active

051471850

ABSTRACT:
A liquid pump apparatus is disclosed for pumping groundwater samples, contaminants or other fluids from a well, monitoring site, tank, vessel, or the like. The pump apparatus is applicable in systems including dedicated wellhead assemblies permanently installed at such wells or monitoring sites in order to minimize cross-contamination from site to site. Another application of the pump apparatus for recovery, collection and control system for cleanup of leachate or other liquid material or contaminated groundwater from a landsite is also disclosed. The pump apparatus according to the invention includes check valve means adapted to accommodate vertical, horizontal, non-vertical, or even inverted pump orientations, without requiring a high level of static head in order to function properly.

REFERENCES:
patent: 3007416 (1961-11-01), Childs
patent: 3148624 (1964-09-01), Baldwin
patent: 4990745 (1991-02-01), Bayles

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