Walter F Dabberdt

US Patent:

55535089, Sep 10, 1996

Filed:

Mar 24, 1995

Appl. No.:

8/410339

Inventors:

Walter F. Dabberdt - Boulder CO
Kenneth D. Norris - Boulder CO
Steven R. Semmer - Westminster CO
Anthony C. Delany - Eldorado Springs CO
Jack R. Fox - Broomfield CO

Assignee:

University Corporation For Atmospheric Research - Boulder CO

International Classification:

G01N 126

US Classification:

73 6302

Abstract:

The portable intelligent whole air sampling system performs in situ air sampling over multiple time periods at individually programmable times, rates and volumes. The system contains multiple independent disposable syringes that collectively provide a large sampling capacity for a large number of samples over an extended period. In addition, the unit/sampler features a battery powered system for portability, operational ability in a wide variety of environmental conditions, an internal time stamping feature to record time and date of events, and microprocessor controlled program features for flexible sampling options. The removable cassette/carousel provides sample portability to a sample extraction device that functions opposite the field sample intake device. Sampling system mechanical components include a removable syringe cassette/carousel, a motorized carousel drive, a motorized plunger extractor, and a motorized syringe selection fork. With the programmable microprocessor and three motor syringe selection and/or operation mechanisms, any number of syringes can be precisely operated during the sampling period by rotating a carousel to any available syringe.