Patents by Inventor Edward C. Holman

Edward C. Holman 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).

  • Portable maintenance exhaust hood
    Patent number: 4505190
    Abstract: A portable exhaust hood isolates sections of piping for maintenance and repair. It has a transparent front panel to provide a clear viewing shield, which can be adjusted between open and closed positions. The use of a collapsible frame within an enclosure made of flexible material contributes significantly to the convenience and portability of the hood, and its relatively inexpensive construction permits disposal, as need be, without substantial economic detriment.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: March 19, 1985
    Assignee: Nuclear & Environmental Protection, Inc.
    Inventors: Carl M. Fink, Edward C. Holman