Patents by Inventor Eda E. Wilson

Eda E. Wilson 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).

  • Method for reducing cavitation in impulse ink jet printing devices
    Patent number: 6688738
    Abstract: Methods for reducing cavitation in impulse or drop on demand ink jetting devices are provided. Impulse ink jet compositions including antioxidant are also provided which are suitable for printing clear, well-defined alphanumeric text or low spread, narrow bar width bar codes on porous substrates such as Kraft paper or corrugated cardboard. The antioxidant additive lowers the dissolved oxygen level in the ink, thereby enhancing the jetting performance of the printhead.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: February 10, 2004
    Assignee: Illinois Tool Works Inc
    Inventors: Deverakonda S. Sarma, James E. Fox, Alan L. Hudd, Thyagaraja Sarada, Brian Salisbury, Eda E. Wilson