Patents by Inventor Steven N. Chillrud

Steven N. Chillrud has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20110004418
    Abstract: Systems and devices for collecting time and space resolved air samples are disclosed. In some embodiments, the systems and devices include the following: a housing including an air inlet; a pump positioned to draw air from outside the sampler and into the housing; electronically controllable valves positioned within the housing for receiving air from the pump; air sampling filters for receiving air from the valves; a printed circuit board including a microcomputer, a global positioning satellite tracking device, and programmable memory, the microcomputer being configured to control the valves to allow air to flow to particular air sampling filters to collect an air sample, the microcomputer being configured to record time data and positioning data from the global positioning satellite tracking device simultaneous to collecting the air sample, the data being stored in the programmable memory; and a power source to provide power for the sampler.
    Type: Application
    Filed: June 5, 2008
    Publication date: January 6, 2011
    Inventors: Steven N. Chillrud, James P. Cowin, Martin J. Iedema, Beizhan Yan, Thomas A. Seim