Patents by Inventor Roy Lee Edgar

Roy Lee Edgar 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).

  • Concrete sandwich panel erection anchor
    Patent number: 5857296
    Abstract: An anchor adapted for being embedded within a concrete sandwich panel to facilitate lifting thereof is disclosed. The anchor includes a neck supporting a head adapted for mating with a conventional lifting assembly. The neck is supported on a body portion adapted for being at least partially embedded within the sandwich panel. The body portion includes a pair of opposing wings extending radially outwardly from a central axis wherein each wing includes an inner portion adapted to be embedded within a wythe of insulation and an outer portion adapted to be embedded within a wythe of concrete.
    Type: Grant
    Filed: May 16, 1997
    Date of Patent: January 12, 1999
    Assignee: Dayton Superior Corporation
    Inventors: David Andrew Niday, Roy Lee Edgar