Stamped steel detectable warning tile and method of manufacture
AssigneeTuf-Tite, Inc.
InventorsTheodore W. Meyers, Samuel J. Gerrits, John Fairbanks, Mike Boyden, Craig Stefan, Michael C. Ruediger, Phillip Legreid, Derek Macdonald
Life of this patent
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Abstract
A stamped steel detectable warning tile and method of forming such includes preforming structures in the tile and subsequently coining the structures to form tactile portions to provide satisfactory end results. Further, the tactile portions can be formed in a staggered fashion along a press to distribute tonnage and extend the lifespan of the press, as well as control a curvature of the tile due to the press operations.
Claims44
A method for forming a detectable warning tile from a sheet of steel using a progressive die, the method comprising:
- feeding the sheet of steel through the progressive die using a feeding mechanism;
- preforming structures across a width and length of the sheet of steel using one or more first workstations of the progressive die, the structures including domes;
- and
- coining the structures to form an array of tactile portions in the sheet of steel using one or more second workstations of the progressive die, the tactile portions including truncated domes resulting from coining the domes.
Dependencies are inferred from the claim text.