Patents by Inventor Russell E. Ihlenfeld

Russell E. Ihlenfeld 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).

  • Spreader closure
    Patent number: 3935805
    Abstract: A spreader closure of the type used to cover a ground coffee receptacle in a coffee brewing apparatus adapted to receive and distribute hot water, said spreader closure having an upper surface portion divided into channels to direct hot water from a central portion to orifices leading through the spreader closure wall whereby the hot water will be evenly distributed over the ground coffee. A special frusto-conical orifice is provided which eliminates blockage due to surface tension.
    Type: Grant
    Filed: October 3, 1973
    Date of Patent: February 3, 1976
    Assignee: Dart Industries Inc.
    Inventor: Russell E. Ihlenfeld
  • Humidifier
    Patent number: D298351
    Type: Grant
    Filed: November 14, 1986
    Date of Patent: November 1, 1988
    Assignee: Gerber Products Company
    Inventors: Russell E. Ihlenfeld, Joseph T. Reeder