Hydraulic pump with in-ground filtration and monitoring capability

Patent · 01 January 1996

OSTI ID:870662

Hopkins, Charles D ^[1]; Livingston, Ronald R ^[2]

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1. Augusta, GA
2. Aiken, SC

A hydraulically operated pump for in-ground filtering and monitoring of ws or other fluid sources, including a hollow cylindrical pump housing with an inlet and an outlet, filtering devices positioned in the inlet and the outlet, a piston that fits slidably within the pump housing, and an optical cell in fluid communication with the pump housing. A conduit within the piston allows fluid communication between the exterior and one end of the piston. A pair of o-rings form a seal between the inside of the pump housing and the exterior of the piston. A flow valve positioned within the piston inside the conduit allows fluid to flow in a single direction. In operation, fluid enters the pump housing through the inlet, flows through the conduit and towards an end of the pump housing. The piston then makes a downward stroke closing the valve, thus forcing the fluid out from the pump housing into the optical cell, which then takes spectrophotometric measurements of the fluid. A spring helps return the piston back to its starting position, so that a new supply of fluid may enter the pump housing and the downward stroke can begin again. The pump may be used independently of the optical cell, as a sample pump to transport a sample fluid from a source to a container for later analysis.

• Research Organization: WESTINGHOUSE SAVANNAH RIVER CO
• DOE Contract Number: AC09-89SR18035
• Assignee: United States of America as represented by Department of Energy (Washington, DC)
• Patent Number(s): US 5569021
• OSTI ID: 870662
• Country of Publication: United States
• Language: English

Related Subjects

/417/250/356/
allows
allows fluid
analysis
begin
capability
cell
closing
communication
conduit
container
cylindrical
cylindrical pump
devices
direction
downward
enter
enters
exterior
filtering
filtration
fits
flow
flow valve
flows
fluid
fluid communication
fluid enters
fluid source
fluid sources
forcing
form
helps
hollow
hollow cylindrical
housing
hydraulic
hydraulic pump
hydraulically
hydraulically operated
in-ground
including
independently
inlet
inside
makes
measurements
monitoring
o-rings
operated
operation
optical
optical cell
outlet
pair
piston
position
positioned
pump
pump housing
return
sample
sample fluid
seal
single
single direction
slidably
source
sources
spectrophotometric
spectrophotometric measurements
spring
starting
starting position
stroke
supply
takes
towards
transport
valve
valve position