Patents by Inventor James Erwin

James Erwin 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).

  • System for creating a homogeneous admixture from liquid and relatively dry flowable material
    Patent number: 4912681
    Abstract: A system for creating an admixture from a liquid and a relatively dry flowable material, such as granular detergent, is provided and includes a hopper for the dry flowable material, a pipe, a pair of valves defining a metering section of the pipe, and a mixing tank into which the dry material and water are introduced. The valves are alternately operated in response to sensed liquid level in the mixing tank to deposit a predetermined quantity of the dry material into the tank, and when the latter occurs, the water is injected tangentially into the tank to create a homogeneous admixture.
    Type: Grant
    Filed: April 11, 1989
    Date of Patent: March 27, 1990
    Assignee: IDX, Inc.
    Inventors: Johnny H. Halsey, James Erwin