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AssigneeABB Lummus Global Inc.
InventorsFranz Büchi, Ernst Vogt, Peter Dubach, Timothy Griffin, Jonathan Lloyd, Bettina Paikert
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Upper and lower mirror image die plates are resiliently supported and have predetermined displacement values for forming vortex generators and foldline crease channels without compressive deformation in a porous sintered metal fiber sheet material. Cutters and ridges coupled to the upper and lower die plates form the respective vortex generators and channels. The sheet of so formed material is then placed in an apparatus for bending the sheet at the foldline channels to corrugate the sheet without deformation of the sheet material between the corrugation bends. Fingers align with and engage the channels. The fingers are on plates that are ramped closer together simultaneously while the fingers on two mirror image coplanar sets of plates displace toward each other as the sheet material is folded. Pins on a pair of rotating levers engage each of the finger plates of the two sets for relatively horizontally displacing the plates and corresponding fingers as they are ramped together vertically.
A method of forming a compressible fibrous porous material that permanently distorts in response to a compression load thereon comprising the step of forming a surface feature in the material at a localized region with negligible compression load distortion of the material in the regions of the material adjacent to and externally of the localized region such that the porosity of the material is substantially unchanged in said regions of the material adjacent to said compression load, the step of forming the surface feature including clamping the material in the regions adjacent to the localized regions with said negligible compression load distortion of the material during the formation of said surface feature.
An apparatus for forming a compressible fibrous porous sheet material that permanently distorts in response to a compression load of a given magnitude comprising:
An apparatus for folding a received foldable material having a plurality of parallel channels in opposing material surfaces into a plurality of parallel undulations, comprising:
A method of forming a compressible fibrous porous material that permanently distorts in response to a compression load thereon comprising the step of forming a surface feature in the material at a localized region with negligible compression load distortion of the material in the regions of the material adjacent to and externally of the localized region such that the porosity of the material is substantially unchanged in said regions of the material adjacent to said compression load and piercing the material at a piercing site adjacent to said localized region.
An apparatus for forming a compressible fibrous porous sheet material that permanently distorts in response to a compression load of a given magnitude comprising:
Dependencies are inferred from the claim text.