Inventors:
Alvin Geller - Ventura CA, US
Assignee:
MARTIN INTEGRATED SYSTEMS - Orange CA
International Classification:
E04B 1/98, E04B 9/00, E04B 9/18
Abstract:
Ceiling suspension system including a plurality of rigid, elongated seismic joists interposed between opposing walls of a room, spaced selected distances apart along a horizontal support plane, and hangers suspended from the respective joists to support a grid from the respective lower ends thereof.