Beam member for use in concrete forming apparatus
AssigneeWilian Holding Company
InventorRobert G. McCracken
Life of this patent
Estimating the term…
Abstract
A light-weight, high-strength beam member for use in concrete form assemblies. A sheet material is roll-formed into a hollow beam having a trapezoidal transverse cross section. In assembly, a plurality of beam members are attached to a supporting metal concrete forming structure in a parallel, spaced-apart relation. Sheeting or decking is attached to the plurality of beam members by hand driven nails which penetrate a top section the beam members.
Claims16
A structural framing member formed of a single piece of nail-penetrable sheet metal and having a trapezoidal transverse cross-section, said structural framing member comprising:
- (a) a first planer section;
- (b) a second planar section coextensive in length with said first planer section and of a width greater than said first planer section;
- and
- (c) a pair of web sections of uniform width coextensive in length with said first planer section and said section planer section, and interconnecting said first planer section and said second planer section along corresponding adjacent edges thereof, said pair of web sections being connected to one another by said first planer section to form the structural framing member having the trapezoidal transverse cross-section.
A frame assembly comprising:
- (a) a structural framing member formed of a single piece of nail-penetrable sheet metal into a trapezoidal transverse cross-section, said structural framing member comprising:
- (i) a first planer section;
- (ii) a second planer section coextensive in length with said first planer section and of a width greater than said first planer section;
- and
- (iii) a pair of web sections of uniform width coextensive in length to said first planer section and said second planer section and interconnecting said first planer section and said second planer section along corresponding adjacent edges thereof said pair of web sections being connected to one another by said first planer section, to form the structural framing member having said trapezoidal transverse cross-section;
- (b) a sheeting material in supported engagement with said first planer section of said structural framing member;
- and
- (c) fastening means penetrating said sheeting material and said first planer section of said structural framing member for maintaining said sheeting material in supported engagement with said first planer section of said structural framing member.
Dependencies are inferred from the claim text.