초록 ▼

A corrugated plate is disclosed which has trapezoidal corrugations defined by alternating, side by side, relatively thick corrugation peaks and corrugation troughs and relatively thin, inclined corrugation sides which interconnect edges of adjoining peaks and troughs. A method is also disclosed for

A corrugated plate is disclosed which has trapezoidal corrugations defined by alternating, side by side, relatively thick corrugation peaks and corrugation troughs and relatively thin, inclined corrugation sides which interconnect edges of adjoining peaks and troughs. A method is also disclosed for corrugating the corrugated plate from flat sheet by providing a flat sheet with spaced apart, longitudinally extending, relatively thick sections which thereafter define the corrugation peaks and corrugation troughs or for forming the thick sections by providing a relatively thin sheet and folding over portions of the thin sheet in the areas which ultimately form the corrugation peaks and corrugation troughs so that the latter are defined by a plurality of staked sheet layers.

대표청구항 ▼

A corrugated metal plate made from sheet material comprising: a plurality of side by side parallel corrugations having a generally trapezoidal cross-section and defining longitudinally extending, parallel, alternating corrugation peaks and corrugation troughs interconnected by sloping corrugation si

A corrugated metal plate made from sheet material comprising: a plurality of side by side parallel corrugations having a generally trapezoidal cross-section and defining longitudinally extending, parallel, alternating corrugation peaks and corrugation troughs interconnected by sloping corrugation sides, the peaks and the troughs each including a substantially flat crown section extending over the full length of the plate and, in a direction transversely thereto, between adjoining corrugation sides, the corrugated plate further including curved corrugation segments extending between lateral edges of the crown sections and the flat corrugation sides, the crown sections having a material thickness substantially greater than a material thickness of the corrugation sides, the crown sections, the corrugation sides, and the corrugation segments being integrally formed from the same sheet.