Embedment tiles for pedestrian platforms and walkways

• US 5,775,835 A
• Filed: 10/26/1995
• Issued: 07/07/1998
• Est. Priority Date: 10/26/1995
• Status: Expired due to Term

• Current Assignee: Astra Capital Incorporated
• Original Assignee: Astra Capital Incorporated
• Inventors: Szekely, Kenneth E. J.
• Primary Examiner(s): Lisehora, James
• Application Number:
  US08/548,914
• Time in Patent Office: 985 Days
• Field of Search: 404/9, 404/15, 404/19, 404/28, 404/29, 404/32, 404/33, 404/35, 404/36, 404/42, 404/43, 404/44, 116/205, 116/DIG. 17, 104/30
• US Class Current: 404/34
• CPC Class Codes: A61H 3/066 Installations on the floor, e.g. special surfaces, to guide blind persons
• 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
• CPC Class Codes: Y10S 116/17 Tactile

Abstract

The present invention provides a textured tile for embedment in fresh concrete on a platform or walking surface comprising a generally planer element with an upper surface and a lower surface, said upper surface having a plurality of upper projections therefrom to provide a distinctive texture relative to the surface of the platform or walkway, said tile having two opposite side edges intended for alignment with corresponding side edges of other tiles, front and rear edges at least one of which faces oncoming pedestrian traffic. Vertical depending flanges are provided along said opposite side edges and said front and rear edges. There is a plurality of holes in said depending flanges and a series of projections depending from the lower surface of the generally planer element.

Claims

1. A textured tile for embedment in fresh concrete on a platform or walking surface comprising a generally planar element with an upper surface and a bottom surface, said upper surface having a plurality of upper projections therefrom to provide a distinctive texture relative to the surface of the tile or walkway detectable by the visually impaired, said tile having two opposite side edges intended for alignment with corresponding side edges of other tiles, front and rear edges, at least one of which faces oncoming pedestrian traffic, vertical depending flanges along said opposite side edges and said front and rear edges, a plurality of holes in said depending flanges, each hole having a perimeter and a center, and wherein said depending flanges are adapted to be pressed into the fresh concrete so that any air trapped under said tile can escape through said holes in said flanges so that said flanges and said holes in the flanges anchor the tile to the concrete, and a plurality of truncated conical projections depending from the bottom surface of the generally planar element and extending below the perimeter of said holes but not extending below the center of said holes and wherein said truncated conical projections are of sufficient height to bridge any air space inadvertently formed between the surface of the fresh concrete after it has cured and the bottom surface of the generally planar element.

2. A textured tile according to claim 1 wherein the truncated conical projections are arranged in a series of parallel rows.

3. A textured tile according to claim 1 further including one or more additional vertical flanges depending from the bottom surface and located between said opposite side edges.

4. A textured tile according to claim 3 wherein said additional vertical flanges are parallel to said opposite side edges.

5. A textured tile according to claim 4 wherein said additional vertical depending flanges between opposite side edges are asymmetrically located so that the tile can be cut between upper projections without cutting the projections and a peripheral flange is provided along the cut.

6. A textured tile according to claim 1 wherein the truncated conical projections are about 1/4" high.

7. A textured tile according to claim 1 wherein said vertical flanges are parallel to said opposite side edges.