Floor duct with integral interlock

Details Floor duct with integral interlock Floor duct with integral interlock

1989-11-13

1992-06-30

Scherbel, David A.

Static structures (e.g., buildings)

Tensioned or flexed sheet facing

52508, 174 48, 174683, 138157, 138162, E04B 548

Patent

active

051251990

ABSTRACT:
An underfloor duct designed to be imbedded in a concrete floor is constructed from first and second duct partial sections which are held together by an interlocking structure integrally formed from the sheet metal of the duct partial sections. In a preferred form the duct partial sections are duct half sections substantially identically formed from sheet metal. In another preferred form, the duct partial sections define flanges extending outwardly at an intermediate level along the sides of a rectangular cross section duct, whereby the duct may be supported from the flanges. Also, multiple cell duct configurations are disclosed.

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