Patents by Inventor Challis Llewellyn Purrington, Sr.

Challis Llewellyn Purrington, Sr. 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).

  • Flexible insulator for telecommunications network printed
    Patent number: 5892663
    Abstract: A device for protecting against electrical shock or other hazards from electrical components on a card includes a thin relatively flat one piece member cut and scored to form folding lines, integral latching tabs and natural hinges therein. When placed on the card and folded along the scored lines and natural hinges a protective cover for at least the pin sides and circuit sides of electrical components (modules) is provided. The device is ideally suited to protect electrical components, in situ, on a circuit card.
    Type: Grant
    Filed: June 3, 1997
    Date of Patent: April 6, 1999
    Assignee: International Business Machines Corporation
    Inventors: Nancy J. Bolinger, Andre Byungyup Minn, Challis Llewellyn Purrington, Sr., Franklin Gerald Darroch