Patents by Inventor Lewis L. Roberts

Lewis L. Roberts 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).

  • Patent number: 5419091
    Abstract: A locking screw feature provides lockable adjustability for the slab-supporting ledge member which supports the heavy slabs used to form the face-wall of mausoleum crypts. The lockability permits the ledge member to be made to be freely slidable in its receiver slot of the hanger body which is connected to the structural concrete of the building; and the ledge-lockability is achieved by a locking screw which passes inwardly through the ledge member, and is forced against the hanger member, thus permitting the fit of the ledge member to the hanger member to be freely slidable. This combination of features not only accommodates the adjustability to be easy and precisely accurate, but also tightly locks the adjusted position. Preferably, the ledge member passage for the locking screw is provided as a inward extension of the ledge member hole which holds the screw which holds the rosette cap which conceals the junction of the slabs.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: May 30, 1995
    Assignee: Mercury Development Corporation
    Inventor: Lewis L. Roberts
  • Patent number: 4519173
    Abstract: A slab-hanging system for a vertically arranged series of removable slabs, which achieves proper location of all slab-supports by the combination of a series of vertical support column members, each of which is adjustable horizontally, vertically and outwardly of the building's associated supporting structure, and slab-supporting hanger devices mounted on the column members; the full adjustability of the column members achieves the proper alignment and positioning of all the hanger devices.
    Type: Grant
    Filed: June 7, 1982
    Date of Patent: May 28, 1985
    Assignee: Mercury Development Corp.
    Inventor: Lewis L. Roberts
  • Patent number: 4484422
    Abstract: A slab-hanging device which removably supports the slabs of crypts in the desired flush array of a whole series of such slabs, as provide the front and removable wall of mausoleum crypts, which has an auxiliary support member adjustably supporting the device in a desired position in front of the crypts' supporting structure and in a desired particular position in front of that structure and accommodating the irregularities of that surface, preventing sagging of the slab-support caused by heaviness of the slabs.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: November 27, 1984
    Assignee: Mercury Development Corporation
    Inventor: Lewis L. Roberts