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Title: High aspect ratio, remote controlled pumping assembly

A miniature dual syringe-type pump assembly 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.
 [1] ;  [2]
  1. (Livermore, CA)
  2. (Lafayette, CA)
Publication Date:
OSTI Identifier:
Report Number(s):
US 5466128
DOE Contract Number:
Resource Type:
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Country of Publication:
United States
aspect; ratio; remote; controlled; pumping; assembly; miniature; dual; syringe-type; pump; remotely; diameter; penetrometer; cone; packer; water; contamination; applications; supply; remove; reagent; sensor; example; motor; gearhead; encoder; drive; screw; actuator; provides; pushing; syringe; pulling; injecting; withdrawing; associated; remote control; pump assembly; aspect ratio; remotely controlled; remote controlled; water contamination; remotely control; /417/92/