Patents by Inventor Charles E. Rodes

Charles E. Rodes 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).

  • Gas processing device with noise dampening
    Patent number: 9709541
    Abstract: A gas processing device includes a sample inlet defining a gas flow path into a housing, and a pump and a noise dampening device disposed in the housing. The noise dampening device includes an inlet chamber, an outlet chamber, and an elastomeric membrane interposed between and fluidly isolating the inlet chamber and the outlet chamber. The inlet chamber is interposed between the sample inlet and the pump inlet, and the outlet chamber communicates with the pump outlet.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: July 18, 2017
    Assignee: Research Triangle Institute
    Inventors: Charles E. Rodes, J. Randall Newsome
  • GAS PROCESSING DEVICE WITH NOISE DAMPENING
    Publication number: 20160258916
    Abstract: A gas processing device includes a sample inlet defining a gas flow path into a housing, and a pump and a noise dampening device disposed in the housing. The noise dampening device includes an inlet chamber, an outlet chamber, and an elastomeric membrane interposed between and fluidly isolating the inlet chamber and the outlet chamber. The inlet chamber is interposed between the sample inlet and the pump inlet, and the outlet chamber communicates with the pump outlet.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 8, 2016
    Inventors: Charles E. Rodes, J. Randall Newsome
  • Aerosol exposure monitoring
    Patent number: 9304117
    Abstract: A gas processing device such as an aerosol exposure monitor is configured for acquiring chronic data, acute data, or both simultaneously, and may include a pump and a noise dampening device. The noise dampening device may include an elastomeric membrane between an inlet chamber and an outlet chamber. In another aspect, an aerosol exposure monitor may include an impactor, a collection filter, and a nephelometer that includes a sample chamber integrated with an aerosol flow path associated with the impactor and collection filter.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: April 5, 2016
    Assignee: Research Triangle Institute
    Inventors: Charles E. Rodes, J. Randall Newsome
  • AEROSOL EXPOSURE MONITORING
    Publication number: 20140347663
    Abstract: A gas processing device such as an aerosol exposure monitor is configured for acquiring chronic data, acute data, or both simultaneously, and may include a pump and a noise dampening device. The noise dampening device may include an elastomeric membrane between an inlet chamber and an outlet chamber. In another aspect, an aerosol exposure monitor may include an impactor, a collection filter, and a nephelometer that includes a sample chamber integrated with an aerosol flow path associated with the impactor and collection filter.
    Type: Application
    Filed: October 26, 2012
    Publication date: November 27, 2014
    Applicant: Research Triangle Institute
    Inventors: Charles E. Rodes, J. Randall Newsome