Patents by Inventor Anthony D. Rands

Anthony D. Rands 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).

  • Low thermal mass GC module
    Patent number: 11808741
    Abstract: A system and method for performing field-portable GC/MS measurements for the rapid sampling and measurement of high temperature boiling semi-volatile organic compounds in environmental samples, wherein other column bundles have cold spots that may prevent high temperature boiling semi-volatile components from eluting the GC column, this new design may eliminate those cold spots on the GC column.
    Type: Grant
    Filed: January 6, 2023
    Date of Patent: November 7, 2023
    Assignee: PERKINELMER U.S. LLC
    Inventors: Edgar D. Lee, Nathan L. Porter, Anthony D. Rands, Randall W. Waite
  • LOW THERMAL MASS GC MODULE
    Publication number: 20230152282
    Abstract: A system and method for performing field-portable GC/MS measurements for the rapid sampling and measurement of high temperature boiling semi-volatile organic compounds in environmental samples, wherein other column bundles have cold spots that may prevent high temperature boiling semi-volatile components from eluting the GC column, this new design may eliminate those cold spots on the GC column.
    Type: Application
    Filed: January 6, 2023
    Publication date: May 18, 2023
    Inventors: Edgar D. Lee, Nathan L. Porter, Anthony D. Rands, Randall W. Waite
  • Low thermal mass GC module
    Patent number: 11567041
    Abstract: A system and method for performing field-portable GC/MS measurements for the rapid sampling and measurement of high temperature boiling semi-volatile organic compounds in environmental samples, wherein other column bundles have cold spots that may prevent high temperature boiling semi-volatile components from eluting the GC column, this new design may eliminate those cold spots on the GC column.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: January 31, 2023
    Assignee: PERKINELMER HEALTH SCIENCES, INC.
    Inventors: Edgar D. Lee, Nathan L. Porter, Anthony D. Rands, Randall W. Waite
  • Sampling pumps and closed loop control of sampling pumps to load traps
    Patent number: 11154794
    Abstract: Certain configurations of devices and systems which are configured to draw a selected volume of an air sample into a trap are described. In some examples, the devices and systems comprise a pump and a mass flow sensor to draw a selected volume of the air sample through a trap even where variable restriction occurs.
    Type: Grant
    Filed: October 9, 2017
    Date of Patent: October 26, 2021
    Assignee: PerkinElmer Health Sciences, Inc.
    Inventors: Nathan L. Porter, Anthony D. Rands, Randal W. Waite, Kenneth D. Nemelka, Chad B Grant
  • SAMPLING PUMPS AND CLOSED LOOP CONTROL OF SAMPLING PUMPS TO LOAD TRAPS
    Publication number: 20180140970
    Abstract: Certain configurations of devices and systems which are configured to draw a selected volume of an air sample into a trap are described. In some examples, the devices and systems comprise a pump and a mass flow sensor to draw a selected volume of the air sample through a trap even where variable restriction occurs.
    Type: Application
    Filed: October 9, 2017
    Publication date: May 24, 2018
    Inventors: Nathan L. Porter, Anthony D. Rands, Randal W. Waite, Kenneth D. Nemelka, Chad A. Grant
  • LOW THERMAL MASS GC MODULE
    Publication number: 20170370888
    Abstract: A system and method for performing field-portable GC/MS measurements for the rapid sampling and measurement of high temperature boiling semi-volatile organic compounds in environmental samples, wherein other column bundles have cold spots that may prevent high temperature boiling semi-volatile components from eluting the GC column, this new design may eliminate those cold spots on the GC column.
    Type: Application
    Filed: June 28, 2017
    Publication date: December 28, 2017
    Inventors: Edgar D. Lee, Nathan L. Porter, Anthony D. Rands, Randall W. Waite
  • Needle trap for use with a gas chromatograph-mass spectrometer for field sampling and analysis
    Patent number: 9322750
    Abstract: A system and method for improving operation of a needle trap by changing a flow path through a needle trap to enable a needle to draw a fluid sample into a working end of the needle and out through the side hole, wherein drawing the sample through the side hole eliminates the possibility of a leak through the side hole while drawing a fluid sample into the working end.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: April 26, 2016
    Assignee: TORION TECHNOLOGIES, INC.
    Inventors: Joseph L. Oliphant, Nathan Porter, Anthony D. Rands
  • NEEDLE TRAP FOR USE WITH A GAS CHROMATOGRAPH-MASS SPECTROMETER FOR FIELD SAMPLING AND ANALYSIS
    Publication number: 20130233054
    Abstract: A system and method for improving operation of a needle trap by changing a flow path through a needle trap to enable a needle to draw a fluid sample into a working end of the needle and out through the side hole, wherein drawing the sample through the side hole eliminates the possibility of a leak through the side hole while drawing a fluid sample into the working end.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 12, 2013
    Applicant: TORION TECHNOLOGIES, INC.
    Inventors: Joseph L. Oliphant, Nathan Porter, Anthony D. Rands