Static structures (e.g. – buildings) – Wall – ceiling – or floor designed for utilities – Load-bearing – prefabricated – abutting units with aligned...
Patent
1985-12-03
1987-07-07
Bell, J. Karl
Static structures (e.g., buildings)
Wall, ceiling, or floor designed for utilities
Load-bearing, prefabricated, abutting units with aligned...
14 695, 52177, 52221, 104275, E04B 548
Patent
active
046777997
ABSTRACT:
A multi-sectional raceway is used in combination with a pair of interconnected panels of a detection system. The panels are attached to the ends of a pair of support beams, and electrical wiring runs between the panels. The raceway runs between the panels, and is comprised of two ramp sections and a platform section interlocked to provide ease of assembly and flexibility. The sections are flexibly interconnected by pressure engageable male members depending from the lower surface of the platform section at opposite ends with generally U-shaped female members located on the leg portions extending from the raised abutting end of each ramp section. The raceway also includes at least one generally E-shaped girder structure running underneath the entire width of the platform section to define at least one passageway for the protection of electrical wiring running therealong. In addition, the raceway includes at least two generally U-shaped channels running along the lower surface of the platform section to provide minimum clearance for the pair of beams running therethrough which interconnect and support the panels attached thereto. Thus, the forces associated with travel over the top of the raceway are isolated from the beams and the interconnected panels to prevent wobbling of the panels.
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National Electric Products Corporation of Pittsburgh, PA, 1938 Catalog and Handbook, pp. 67, 68.
Barte William B.
Bell J. Karl
Minnesota Mining and Manufacturing Company
Sell Donald M.
Smith James A.
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