Patents by Inventor Paul George Howland

Paul George Howland 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).

  • Rotary tabletting press with powder feed adjustment valve
    Patent number: 4108338
    Abstract: A rotary tabletting press, including a die table rotatable about an axis, has improved apparatus for feeding powder to the table. The improved feed apparatus includes a rotatably sliding valve at a discharge orifice at the bottom of a powder storage hopper, a conduit conveying powder from the hopper to the die table and apparatus which adjustably maintains the discharge end of the conduit a preselected distance above the die table.
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: August 22, 1978
    Assignee: Pennwalt Corporation
    Inventors: Paul George Howland, John Mergle Alexander