Patents by Inventor Donald J. Dahlheimer

Donald J. Dahlheimer 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: 4773103
    Abstract: A regulating closure for a dispenser of toilet bowl cleaner includes an annular band which snaps onto a cap portion and has generally semicircular openings which can be placed in registry with similar openings in the cap portion, or which can be adjusted to cover all or part of the cap openings by rotation of the annular band. The band, which is snapped into place on the cap portion, is retained thereon by a series of nipples protruding inwardly from the interior side of the annular band, engaged beneath a pronounced annular ridge on the exterior of the cap portion.
    Type: Grant
    Filed: February 6, 1987
    Date of Patent: September 27, 1988
    Inventor: Donald J. Dahlheimer