Methods for producing detectible warnings on surfaces and produc

Details Methods for producing detectible warnings on surfaces and produc Methods for producing detectible warnings on surfaces and produc

1994-05-17

1995-01-31

Lusignan, Michael

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

427137, 427272, 427282, 428206, 428210, 428325, B32B 300

Patent

active

053857704

ABSTRACT:
The present invention is characterized as methods for fixedly depositing solidified protrusions on to a surface, and products thereof so as to create a detectible warning whereby the tactile and visual characteristics of the detectible warnings contrast with the tactile and visual characteristics of surrounding surfaces. To create such a detectible warning, a mask in the form of a resilient mat perforated with a plurality of apertures so as to form a repeating pattern. Each aperture acts as a mold of a protrusion having predetermined dimensions. To enhance the functionality of the protrusions, each protrusion has a generally inclined peripheral surface and rounded peripheral surface to substrate and peripheral surface to upper surface interfaces. The mat is placed in contact with the substrate on which a detectible warning is desired. A blend is created from a curable viscous substance and one or more of the following: reinforcing elements, reflective elements, pigments, or abrasives. The blend is then worked into the apertures whereupon it begins to solidify. After the blend becomes semi-stable, the mat is removed and the protrusions are allowed to fully cure.

REFERENCES:
patent: 1947271 (1934-02-01), Mattison
patent: 4758469 (1988-07-01), Lange
patent: 4988555 (1991-01-01), Hedblom
patent: 5203881 (1993-04-01), Wiand
Product Bulletin, Two-Component Highway Marking System: Dura-Stripe.COPYRGT., Morton Int'l (Feb. 16, 1993).
Product Brochure, Dura-Stripe.COPYRGT. Road Marking System, Morton Int'l (1992).
Photographs of "Pathfinder" tile manufactured by the Carsonite Company, Carson City, Nev., no date.

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