Patents by Inventor Edward C. Schmidt

Edward C. Schmidt 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).

  • Bellows pump with extension having integral valves
    Patent number: 3973700
    Abstract: A pump or spray is comprised of a flexible bellows having a non-collapsible extension in which there are inlet and outlet ports. Flapper valves, integral with the extension, open and close the ports on the compression and expansion strokes of the bellows. The bellows may be finger or trigger operated.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: August 10, 1976
    Inventors: Edward C. Schmidt, Miroslav Uroshevich