Patents by Inventor Rod Mitchell Walters

Rod Mitchell Walters 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).

  • Dual chambered fluid displacement apparatus
    Patent number: 6884231
    Abstract: A dual-chambered dispensing device having a single piston. The device is driven by an electric precision motor. Each chamber is capable of aspiration and dispensation. When one chamber is aspirating, the other is dispensing.
    Type: Grant
    Filed: October 17, 2002
    Date of Patent: April 26, 2005
    Assignee: Hamilton Company
    Inventors: Rod Mitchell Walters, Chih-Chung Chen
  • Fluid selection and redirection valve
    Publication number: 20040227123
    Abstract: A valve for use in harsh chemical environments which is substantially inert from the predations of the chemicals. At least a valve insert is formed from ceramic. The insert defines potential fluid passageways while a gate determines flow path(s).
    Type: Application
    Filed: June 4, 2001
    Publication date: November 18, 2004
    Inventors: Paul Justus Rodgers, Thomas L. Peterson, Jan Woody Conover, Rod Mitchell Walters