Patents by Inventor Robert T. Hilgendorf

Robert T. Hilgendorf 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).

  • Patent number: 6434977
    Abstract: A laundry aid dispenser for a washing machine allows simple introduction of laundry aids into cups whose volumes are visible to the user and held within the console of the washing machine. A vertically oriented valve and flush chamber arrangement allows for the removal of the cups and the dispensing of viscous laundry aids such as fabric softener with reduced accumulation and buildup. The configuration also allows easy access to critical channels and parts of the dispenser as well as flexible electronic control of the dispensing times. Color-coding, keying and other indicia simplify the consumer's identification of the proper laundry aid for each cup.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: August 20, 2002
    Assignee: Ark-Les Corporation
    Inventors: Kenyon A. Hapke, Robert T. Hilgendorf