Drop ceiling framework
AssigneeSpecified Ceiling Systems
InventorFrancis L. McCall
Life of this patent
Estimating the term…
Abstract
A drop ceiling framework constructed of rolled sheet metal in which a longitudinal T-frame member has a web section formed of two sheet metal layers joined along a longitudinal edge, a channel section formed along the lower edge of the web section, and a pair of flange sections projecting outwardly in a common plane from the open end of the channel section. The flange sections are formed of two layers of sheet metal joined along the outer edge of the flange section. The outer layer of each flange section is notched, exposing the under layer at each position of intersection with cross members of the drop ceiling. The notches are aligned with the channel sections of the cross members to form an extension of the reveal formed by the channel portions of the cross members.
Claims8
A drop ceiling T-frame member comprising:
- a web section formed of two sheet metal layers joined along a longitudinal edge, a channel section having two parallel side walls joined by a transverse wall, the sheet metal layers of the web section being joined along a longitudinal edge to the side walls of the channel section by respective sheet metal sections forming the transverse wall, the side walls of the channel section extending parallel to and away from the web section, a pair of flange sections lying in a common plane extending perpendicular to the plane of the web section, each flange section being formed of two layers of sheet metal joined along the outer edge of the flange section, one layer of each flange section being joined along one longitudinal edge to the outer edge of a respective one of the side walls of the channel section, the flange sections projecting outwardly away from the respective side walls and forming a flat supporting surface on either side of the channel section for supporting ceiling tiles, the said other layer of each flange section having at least one pair of slots extending the width of the flange section, each slot exposing said one layer through the slot in said other layer of the flange section, said pair of slots in the respective flange sections being positioned directly opposite each other on either side of the gap so as to be aligned.
Dependencies are inferred from the claim text.