Patents by Inventor Russell Todd Barker

Russell Todd Barker 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).

  • Pumping system
    Patent number: 6354345
    Abstract: To pump fluid into sample containers, a distributor arm of a sample collector is calibrated as to position in a computer memory and is moved from position to position over different containers while a counter in computer memory keeps track of its position. When the distributor arm is over the designated container, samples are pumped into the container. To pump the fluid into the container, the rollers of a peristaltic pump are supported to prevent the rollers from compressing the tube more than the thickness of the walls of the tube. A tube holder rotates along with the roller assembly of the peristaltic pump and keeps the tube in line with the rollers.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: March 12, 2002
    Assignee: Isco, Inc.
    Inventors: Frederick Alan Nabity, Robert Raymond Fiedler, James Paul Masek, Brian D. Dawson, Russell Todd Barker, Frederick Detlef Sueverkruepp, III, Ralph E. Setter, Paul George Wright, Larry Lee Fritz
  • Peristaltic pump having a roller support
    Patent number: 5915932
    Abstract: The rollers of a peristaltic pump are supported to prevent said rollers from compressing said tube more than the thickness of the walls of the tube. A tube holder rotates along with the roller assembly of the peristaltic pump and keeps the tube in line with the rollers.
    Type: Grant
    Filed: February 6, 1996
    Date of Patent: June 29, 1999
    Assignee: Isco, Inc.
    Inventors: Frederick Alan Nabity, Robert Raymond Fiedler, James Paul Masek, Brian D. Dawson, Russell Todd Barker, Frederick Detlef Sueverkruepp, III, Ralph E. Setter, Paul George Wright, Larry Lee Fritz