Preformed pavement warning assembly and method

• US 7,189,025 B1
• Filed: 04/10/2006
• Issued: 03/13/2007
• Est. Priority Date: 04/10/2006
• Status: Active Grant

• Current Assignee: Flint Acquisition Corp. (Nouryon BV)
• Original Assignee: Flint Trading, Inc. (Nouryon BV)
• Inventors: Greer, Robert W., Corbett, Christopher J.
• Primary Examiner(s): Hartmann; Gary S.
• Application Number:
  US11/401,125
• Time in Patent Office: 337 Days
• Field of Search: 404/13, 404/16, 404/19, 404/31, 404/33, 404/40
• US Class Current: 404/19
• CPC Class Codes: A61H 3/066 Installations on the floor, e.g. special surfaces, to guide blind persons
• CPC Class Codes: E01C 11/222 Raised kerbs, e.g. for sidewalks E01C11/223, E01F9/535, E01F9/547 take precedence; preformed sidewalk paving with integral kerb E01C15/00; specially for traffic islands E01F1/00; Integrated or portable means for facilitating ascent or descent
• CPC Class Codes: E01C 5/20 made of units of plastics, e.g. concrete with plastics, linoleumE01C5/18 takes precedence; of textiles made of synthetic fibres E01C5/008

Abstract

A detectable pavement warning assembly includes a web having a plurality of projections attached to one another by linear connectors, a planar cover with a series of apertures for receiving the projections therethrough and an adhesive sheet. In use a rigid substrate such as a sidewalk is selected, and a primer is applied. The web, cover and adhesive sheet all pre-assembled are placed on the primed substrate. Next, the warning assembly is heated with an open flame to soften and fuse the pavement warning assembly with the primed substrate. The projections will remain extended sufficiently above the cover to provide a warning to pedestrians that walk thereon, such as when approaching a traffic area or other hazard.

Claims

1. A pavement warning assembly for installation on a rigid substrate comprising a web, a cover, said cover positioned over said web, an adhesive sheet, said adhesive sheet attached to said web, a primer, said primer positioned on said substrate, said web comprising a plurality of projections, a plurality of linear connectors, said connectors joined at each end to different ones of said projections, said cover defining a plurality of apertures, said apertures each for receiving a different one of said projections whereby said adhesive sheet contacts said primer upon installation of said warning assembly on said substrate.

2. The pavement warning assembly of claim 1 wherein said web, said cover and said adhesive sheet are each formed from a thermoplastic material.

3. The pavement warning assembly of claim 1 wherein said web, said cover and said adhesive sheet are each formed from a thermosetting plastic material.

4. The pavement warning assembly of claim 1 wherein said projections are arranged in rows and columns.