Patents by Inventor William L. H. Hemsarth

William L. H. Hemsarth 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).

  • Dispensing method and apparatus
    Patent number: 4568002
    Abstract: A method and apparatus for the total dispensing of the contents, e.g. insecticide, of a container, which comprises actuating a release valve by an actuator and placing at least the actuator in rotation about a vertical axis as the contents discharge.
    Type: Grant
    Filed: May 31, 1983
    Date of Patent: February 4, 1986
    Assignee: American Home Products Corporation (Del.)
    Inventors: Bernard Weinstein, William L. H. Hemsarth