Patents by Inventor David M. Chambers

David M. Chambers 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).

  • Magnetically-induced solid-phase microextraction fiber actuation system for quantitative headspace and liquid sampling
    Patent number: 9658137
    Abstract: A magnetically-induced SPME fiber actuation system includes a SPME fiber holder and a SPME fiber holder actuator, for holding and magnetically actuating a SPME fiber assembly. The SPME fiber holder has a plunger with a magnetic material to which the SPME fiber assembly is connected, and the magnetic SPME fiber holder actuator has an elongated barrel with a loading chamber for receiving the SPME fiber assembly-connected SPME fiber holder, and an external magnet which induces axial motion of the magnetic material of the plunger to extend/retract the SPME fiber from/into the protective needle of the SPME fiber assembly.
    Type: Grant
    Filed: June 18, 2014
    Date of Patent: May 23, 2017
    Assignee: Lawrence Livermore National Security, LLC
    Inventors: Chris Harvey, Jerry Carter, David M. Chambers
  • MAGNETICALLY-INDUCED SOLID-PHASE MICROEXTRACTION FIBER ACTUATION SYSTEM FOR QUANTITATIVE HEADSPACE AND LIQUID SAMPLING
    Publication number: 20140366651
    Abstract: A magnetically-induced SPME fiber actuation system includes a SPME fiber holder and a SPME fiber holder actuator, for holding and magnetically actuating a SPME fiber assembly. The SPME fiber holder has a plunger with a magnetic material to which the SPME fiber assembly is connected, and the magnetic SPME fiber holder actuator has an elongated barrel with a loading chamber for receiving the SPME fiber assembly-connected SPME fiber holder, and an external magnet which induces axial motion of the magnetic material of the plunger to extend/retract the SPME fiber from/into the protective needle of the SPME fiber assembly.
    Type: Application
    Filed: June 18, 2014
    Publication date: December 18, 2014
    Inventors: Chris Harvey, Jerry Carter, David M. Chambers
  • Type-C rotavirus cultures and uses therefor
    Patent number: 5283172
    Abstract: Type-C rotavirus are propagated in swine testicular cells with reduced concentrations of proteolytic enzyme for subsequent production of antigen and antiserum for use in diagnostic kits and for killed vaccines to prevent Type C rotavirus infections. Propagation of Type C rotavirus in the ST cells can also lead to virus modification for subsequent use as a modified live virus vaccine to prevent Type C rotavirus infections.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: February 1, 1994
    Assignee: Ambico, Inc.
    Inventors: Mark W. Welter, David M. Chambers, C. Joseph Welter
  • Type-C rotavirus cultures and uses therefor
    Patent number: 5147639
    Abstract: Type-C rotavirus are propagated in swine testicular cells with reduced concentrations of proteolytic enzyme for subsequent production of antigen and antiserum for use in diagnostic kits and for killed vaccines to prevent Type C rotavirus infections. Propagation of Type C rotavirus in the ST cells can also lead to virus modification for subsequent use as a modified live virus vaccine to prevent Type C rotavirus infections.
    Type: Grant
    Filed: June 19, 1990
    Date of Patent: September 15, 1992
    Assignee: Ambico, Inc.
    Inventors: Mark W. Welter, David M. Chambers, C. Joseph Welter