Patents by Inventor Glenn D. Maxwell

Glenn D. Maxwell 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).

  • Ink supply system for an ink jet printer
    Patent number: 4162501
    Abstract: An ink supply system for an ink printer having a pressurizable, interchangeable ink cartridge, means for pressuring the ink cartridge upon insertion into the ink cartridge receptacle, and means for establishing fluid communication between the interior of the ink cartridge and the ink supply line to the ink jet printer before pressurization of the ink cartridge occurs. The present ink supply system also includes an improved septum and needle method of establishing fluid communication.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: July 24, 1979
    Assignee: Silonics, Inc.
    Inventors: Charles S. Mitchell, Glenn D. Maxwell