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Title: High aspect ratio, remote controlled pumping assembly

A miniature dual syringe-type pump assembly is described which has a high aspect ratio and which is remotely controlled, for use such as in a small diameter penetrometer cone or well packer used in water contamination applications. The pump assembly may be used to supply and remove a reagent to a water contamination sensor, for example, and includes a motor, gearhead and motor encoder assembly for turning a drive screw for an actuator which provides pushing on one syringe and pulling on the other syringe for injecting new reagent and withdrawing used reagent from an associated sensor. 4 figs.
Authors:
;
Publication Date:
OSTI Identifier:
131898
Report Number(s):
US 5,466,128/A/
PAN: US patent application 8-095,297
DOE Contract Number:
W-7405-ENG-48
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 14 Nov 1995
Research Org:
University of California
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; WATER WELLS; MONITORING; MONITORS; PUMPS; REMOTE CONTROL; SAMPLERS; DESIGN; GROUND WATER; WATER POLLUTION; FLUID INJECTION; FLUID WITHDRAWAL