Patents by Inventor Thomas Hard

Thomas Hard 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).

  • Protective scaffold
    Patent number: 4222459
    Abstract: A collapsible scaffold for overhead protection of workmen in cement kilns. The scaffold includes a plurality of scaffold units each of which is constructed for erection from a collapsed condition into an overhead protective position. The units are attached in series, one in front of the other, to provide protection along a designated length of work area.
    Type: Grant
    Filed: February 23, 1979
    Date of Patent: September 16, 1980
    Assignee: Atlantic Cement Company, Inc.
    Inventors: Thomas Hard, Ronald Swingle