Patents Assigned to Hadley Industries Overseas Holdings Limited
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Patent number: 9138796Abstract: A sheet of cold rolled material having on both of its surfaces rows of projections and rows of depressions, the projections on one surface corresponding with the depressions on the other surface, the relative positions of the projections and depressions being such that lines drawn on a surface of the sheet between adjacent rows of projections are non-rectilinear, the sheet having a base gauge G, wherein each projection has a substantially continuous region of peak plastic strain at, toward or about its apex and/or is thinned by no more than 25% of its base gauge G. Methods of forming the sheet material and tools for forming the sheet material are disclosed.Type: GrantFiled: July 1, 2011Date of Patent: September 22, 2015Assignee: Hadley Industries Overseas Holdings LimitedInventors: Geoffrey Thomas Deeley, Roy Humpage, Michael Castellucci
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Publication number: 20120000264Abstract: A sheet of cold rolled material having on both of its surfaces rows of projections and rows of depressions, the projections on one surface corresponding with the depressions on the other surface, the relative positions of the projections and depressions being such that lines drawn on a surface of the sheet between adjacent rows of projections are non-rectilinear, the sheet having a base gauge G, wherein each projection has a substantially continuous region of peak plastic strain at, toward or about its apex and/or is thinned by no more than 25% of its base gauge G. Methods of forming the sheet material and tools for forming the sheet material are disclosed.Type: ApplicationFiled: July 1, 2011Publication date: January 5, 2012Applicant: HADLEY INDUSTRIES OVERSEAS HOLDINGS LIMITEDInventors: Geoffrey Thomas Deeley, Roy Humpage, Michael Castellucci
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Publication number: 20110192209Abstract: A sheet of cold rolled material having on both of its surfaces rows of projections and rows of depressions, the projections on one surface corresponding with the depressions on the other surface, the relative positions of the projections and depressions being such that lines drawn on a surface of the sheet between adjacent rows of projections are non-rectilinear, the sheet having a base gauge G, wherein each projection has a substantially continuous region of peak plastic strain at, toward or about its apex and/or is thinned by no more than 25% of its base gauge G. Methods of forming the sheet material and tools for forming the sheet material are disclosed.Type: ApplicationFiled: April 14, 2011Publication date: August 11, 2011Applicant: HADLEY INDUSTRIES OVERSEAS HOLDINGS LIMITEDInventors: Geoffrey Thomas Deeley, Roy Humpage, Michael Castellucci
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Patent number: 7992418Abstract: A sheet of cold rolled material having on both of its surfaces rows of projections and rows of depressions, the projections on one surface corresponding with the depressions on the other surface, the relative positions of the projections and depressions being such that lines drawn on a surface of the sheet between adjacent rows of projections are non-rectilinear, the sheet having a base gauge G, wherein each projection has a substantially continuous region of peak plastic strain at, toward or about its apex and/or is thinned by no more than 25% of its base gauge G. Methods of forming the sheet material and tools for forming the sheet material are disclosed.Type: GrantFiled: April 14, 2011Date of Patent: August 9, 2011Assignee: Hadley Industries Overseas Holdings LimitedInventors: Geoffrey Thomas Deeley, Roy Humpage, Michael Castellucci
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Patent number: 7947380Abstract: A sheet of cold rolled material having on both of its surfaces rows of projections and rows of depressions, the projections on one surface corresponding with the depressions on the other surface, the relative positions of the projections and depressions being such that lines drawn on a surface of the sheet between adjacent rows of projections are non-rectilinear, the sheet having a base gauge G, wherein each projection has a substantially continuous region of peak plastic strain at, toward or about its apex and/or is thinned by no more than 25% of its base gauge G. Methods of forming the sheet material and tools for forming the sheet material are disclosed.Type: GrantFiled: December 21, 2007Date of Patent: May 24, 2011Assignee: Hadley Industries Overseas Holdings LimitedInventors: Geoffrey Thomas Deeley, Roy Humpage, Michael Castellucci