Colorado State University Research Foundation

Pdc Machines Inc.

Kyle Palmiscno

Guy Robert Babbitt

Bryce Whitehill

Chris Turner

Alex Beckerman

Kareem Afzal

Michael Sprengel

Rebecca Even

Kolbin Dahley

Andrew Kollar

Jayvin Krzych

Maria Francesca Cotrufo

Carl T Johnson

Noah Schaich

Michelle Haddix

Travis Johnson

A soil fractionation system can include a plurality of sample racks propelled by a drive system. Each sample rack can include a sample tube for holding a soil sample and a filter cup for receiving an extracted fraction of the soil sample. An extractor module of the fractionation system can include an extractor assembly and a filter assembly. A control system can control the relative positioning of the plurality of sample racks via the drive system, the relative movement between the extractor assembly and the sample tube, and the relative movement between the filter assembly and the filter cup.

Soil organic matter density fractionation devices and methods

Devices and methods for operating a diaphragm compressor. Embodiments of the present disclosure comprise an oil piston being driven to pressurize work oil against the diaphragm of the compressor. In embodiments, an injection pump provides a supplemental flow of work oil in the region of pressurized fluid, and such pump may be part of an actively controlled system. In embodiments, a pressure relief valve vents an overpump flow of work oil, and such valve may be variable. Embodiments provide feedback and control mechanisms, including control of the injection pump and the relief valve.

Hydraulic drive for diaphragm compressor

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Loveland, CO, United States of America

Kyle Palmiscno